diff --git a/src/app/core/data/processes/script-data.service.ts b/src/app/core/data/processes/script-data.service.ts
index 9841ef3862..6c7222451e 100644
--- a/src/app/core/data/processes/script-data.service.ts
+++ b/src/app/core/data/processes/script-data.service.ts
@@ -31,7 +31,7 @@ export class ScriptDataService extends DataService<Script> {
     super();
   }
 
-  public invocate(scriptName: string, parameters: ProcessParameter[], files: File[]) {
+  public invoke(scriptName: string, parameters: ProcessParameter[], files: File[]) {
     this.getBrowseEndpoint().pipe(
       map((endpoint: string) => new URLCombiner(endpoint, scriptName, 'processes').toString()),
       map((endpoint: string) => {
diff --git a/src/app/core/data/request.models.ts b/src/app/core/data/request.models.ts
index f0c1266da5..82149fbbc5 100644
--- a/src/app/core/data/request.models.ts
+++ b/src/app/core/data/request.models.ts
@@ -76,6 +76,9 @@ export class PostRequest extends RestRequest {
   }
 }
 
+/**
+ * Request representing a multipart post request
+ */
 export class MultipartPostRequest extends RestRequest {
   public isMultipart = true;
   constructor(
diff --git a/src/app/core/dspace-rest-v2/dspace-rest-v2.service.ts b/src/app/core/dspace-rest-v2/dspace-rest-v2.service.ts
index 30e34cfcf2..8cb730c358 100644
--- a/src/app/core/dspace-rest-v2/dspace-rest-v2.service.ts
+++ b/src/app/core/dspace-rest-v2/dspace-rest-v2.service.ts
@@ -69,6 +69,8 @@ export class DSpaceRESTv2Service {
    *    an optional body for the request
    * @param options
    *    the HttpOptions object
+   * @param isMultipart
+   *     true when this concerns a multipart request
    * @return {Observable<string>}
    *      An Observable<string> containing the response from the server
    */
diff --git a/src/app/process-page/new/new-process.component.html b/src/app/process-page/new/new-process.component.html
index 09e6bfcdaa..dbda37c377 100644
--- a/src/app/process-page/new/new-process.component.html
+++ b/src/app/process-page/new/new-process.component.html
@@ -1,8 +1,7 @@
-<script src="process-parameters/parameter-value-input/value-input.component.ts"></script>
 <div class="container">
     <div class="row">
         <div class="col-12 col-md-6">
-            <form #form="ngForm" (ngSubmit)="submitForm()">
+            <form #form="ngForm" (ngSubmit)="submitForm(form)">
                 <ds-scripts-select (select)="selectedScript = $event"></ds-scripts-select>
                 <ds-process-parameters [script]="selectedScript" (updateParameters)="parameters = $event"></ds-process-parameters>
                 <button [disabled]="form.invalid" type="submit" class="btn btn-light float-right">{{ 'process.new.submit' | translate }}</button>
@@ -13,4 +12,3 @@
         </div>
     </div>
 </div>
-
diff --git a/src/app/process-page/new/new-process.component.spec.ts b/src/app/process-page/new/new-process.component.spec.ts
new file mode 100644
index 0000000000..ed05dc9a33
--- /dev/null
+++ b/src/app/process-page/new/new-process.component.spec.ts
@@ -0,0 +1,68 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
+import { NewProcessComponent } from './new-process.component';
+import { ScriptDataService } from '../../core/data/processes/script-data.service';
+import { MockTranslateLoader } from '../../shared/testing/mock-translate-loader';
+import { ScriptParameter } from '../scripts/script-parameter.model';
+import { Script } from '../scripts/script.model';
+import { ProcessParameter } from '../processes/process-parameter.model';
+
+describe('NewProcessComponent', () => {
+  let component: NewProcessComponent;
+  let fixture: ComponentFixture<NewProcessComponent>;
+  let scriptService;
+  let parameterValues;
+  let script;
+
+  function init() {
+    const param1 = new ScriptParameter();
+    const param2 = new ScriptParameter();
+    script = Object.assign(new Script(), { parameters: [param1, param2] });
+    parameterValues = [
+      Object.assign(new ProcessParameter(), { name: '-a', value: 'bla' }),
+      Object.assign(new ProcessParameter(), { name: '-b', value: '123' }),
+      Object.assign(new ProcessParameter(), { name: '-c', value: 'value' }),
+    ];
+    scriptService = jasmine.createSpyObj('scriptService', ['invoke'])
+  }
+
+  beforeEach(async(() => {
+    init();
+    TestBed.configureTestingModule({
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [NewProcessComponent],
+      providers: [
+        { provide: ScriptDataService, useValue: scriptService },
+      ],
+      schemas: [NO_ERRORS_SCHEMA]
+    })
+      .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(NewProcessComponent);
+    component = fixture.componentInstance;
+    component.parameters = parameterValues;
+    component.selectedScript = script;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+
+  it('should call invoke on the scriptService on submit', () => {
+    component.submitForm({ invalid: false });
+    expect(scriptService.invoke).toHaveBeenCalled();
+  });
+});
diff --git a/src/app/process-page/new/new-process.component.ts b/src/app/process-page/new/new-process.component.ts
index 0c98d4d8b4..05cb4384af 100644
--- a/src/app/process-page/new/new-process.component.ts
+++ b/src/app/process-page/new/new-process.component.ts
@@ -3,16 +3,35 @@ import { Script } from '../scripts/script.model';
 import { Process } from '../processes/process.model';
 import { ProcessParameter } from '../processes/process-parameter.model';
 import { ScriptDataService } from '../../core/data/processes/script-data.service';
+import { NgForm } from '@angular/forms';
 
+/**
+ * Component to create a new script
+ */
 @Component({
   selector: 'ds-new-process',
   templateUrl: './new-process.component.html',
   styleUrls: ['./new-process.component.scss'],
 })
 export class NewProcessComponent implements OnInit {
+  /**
+   * The currently selected script
+   */
   public selectedScript: Script;
+
+  /**
+   * The process to create
+   */
   public process: Process;
+
+  /**
+   * The parameter values to use to start the process
+   */
   public parameters: ProcessParameter[];
+
+  /**
+   * Optional files that are used as parameter values
+   */
   public files: File[] = [];
 
   constructor(private scriptService: ScriptDataService) {
@@ -22,7 +41,15 @@ export class NewProcessComponent implements OnInit {
     this.process = new Process();
   }
 
-  submitForm() {
+  /**
+   * Validates the form, sets the parameters to correct values and invokes the script with the correct parameters
+   * @param form
+   */
+  submitForm(form: NgForm) {
+    if (!this.validateForm(form)) {
+      return;
+    }
+
     const stringParameters: ProcessParameter[] = this.parameters.map((parameter: ProcessParameter) => {
         return {
           name: parameter.name,
@@ -30,14 +57,35 @@ export class NewProcessComponent implements OnInit {
         };
       }
     );
-    this.scriptService.invocate(this.selectedScript.id, stringParameters, this.files)
+    this.scriptService.invoke(this.selectedScript.id, stringParameters, this.files)
   }
 
-  checkValue(processParameter: ProcessParameter): string {
+  /**
+   * Checks whether the parameter values are files
+   * Replaces file parameters by strings and stores the files in a separate list
+   * @param processParameter The parameter value to check
+   */
+  private checkValue(processParameter: ProcessParameter): string {
     if (typeof processParameter.value === 'object') {
       this.files = [...this.files, processParameter.value];
       return processParameter.value.name;
-    }
+  }
     return processParameter.value;
   }
+
+  /**
+   * Validates the form
+   * Returns false if the form is invalid
+   * Returns true if the form is valid
+   * @param form The NgForm object to validate
+   */
+  private validateForm(form: NgForm) {
+    if (form.invalid) {
+      Object.keys(form.controls).forEach((key) => {
+        form.controls[key].markAsDirty();
+      });
+      return false;
+    }
+    return true;
+  }
 }
diff --git a/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.html b/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.html
index 204b90dc77..5b73c35f53 100644
--- a/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.html
+++ b/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.html
@@ -10,7 +10,7 @@
             </option>
         </select>
         <ds-parameter-value-input [parameter]="selectedScriptParameter" (updateValue)="selectedParameterValue = $event" class="d-block col"></ds-parameter-value-input>
-        <button *ngIf="removable" class="btn btn-light col-1" (click)="removeParameter.emit(parameterValue);"><span class="fas fa-trash"></span></button>
+        <button *ngIf="removable" class="btn btn-light col-1 remove-button" (click)="removeParameter.emit(parameterValue);"><span class="fas fa-trash"></span></button>
         <span *ngIf="!removable" class="col-1"></span>
 </div>
 
diff --git a/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.spec.ts b/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.spec.ts
index 0a435f6e27..97c0d7c3d0 100644
--- a/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.spec.ts
@@ -1,25 +1,71 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { ParameterSelectComponent } from './parameter-select.component';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
+import { FormsModule } from '@angular/forms';
+import { ScriptParameter } from '../../../scripts/script-parameter.model';
+import { ScriptParameterType } from '../../../scripts/script-parameter-type.model';
+import { By } from '@angular/platform-browser';
 
 describe('ParameterSelectComponent', () => {
   let component: ParameterSelectComponent;
   let fixture: ComponentFixture<ParameterSelectComponent>;
+  let scriptParams: ScriptParameter[];
 
+  function init() {
+    scriptParams = [
+      Object.assign(
+        new ScriptParameter(),
+        {
+          name: '-a',
+          type: ScriptParameterType.BOOLEAN
+        }
+      ),
+      Object.assign(
+        new ScriptParameter(),
+        {
+          name: '-f',
+          type: ScriptParameterType.FILE
+        }
+      ),
+    ]
+  }
   beforeEach(async(() => {
+    init();
     TestBed.configureTestingModule({
-      declarations: [ ParameterSelectComponent ]
+      imports: [FormsModule],
+      declarations: [ParameterSelectComponent],
+      schemas: [NO_ERRORS_SCHEMA]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(ParameterSelectComponent);
     component = fixture.componentInstance;
+
+    component.parameters = scriptParams;
+    component.removable = false;
     fixture.detectChanges();
   });
 
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should show the remove button when removable', () => {
+    component.removable = true;
+    fixture.detectChanges();
+
+    const button = fixture.debugElement.query(By.css('button.remove-button'));
+    expect(button).not.toBeNull();
+  });
+
+  it('should hide the remove button when not removable', () => {
+    component.removable = false;
+    fixture.detectChanges();
+
+    const button = fixture.debugElement.query(By.css('button.remove-button'));
+    expect(button).toBeNull();
+  });
 });
diff --git a/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.ts b/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.ts
index b0145b10a3..a9d5193b9e 100644
--- a/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-select/parameter-select.component.ts
@@ -3,16 +3,37 @@ import { ProcessParameter } from '../../../processes/process-parameter.model';
 import { ScriptParameter } from '../../../scripts/script-parameter.model';
 import { hasNoValue } from '../../../../shared/empty.util';
 
+/**
+ * Component to select a single parameter for a process
+ */
 @Component({
   selector: 'ds-parameter-select',
   templateUrl: './parameter-select.component.html',
   styleUrls: ['./parameter-select.component.scss']
 })
 export class ParameterSelectComponent implements OnInit {
+  /**
+   * The current parameter value of the selected parameter
+   */
   @Input() parameterValue: ProcessParameter;
+  /**
+   * The available script parameters for the script
+   */
   @Input() parameters: ScriptParameter[];
+
+  /**
+   * Whether or not this selected parameter can be removed from the list
+   */
   @Input() removable: boolean;
+
+  /**
+   * Emits the parameter value when it's removed
+   */
   @Output() removeParameter: EventEmitter<ProcessParameter> = new EventEmitter<ProcessParameter>();
+
+  /**
+   * Emits the updated parameter value when it changes
+   */
   @Output() changeParameter: EventEmitter<ProcessParameter> = new EventEmitter<ProcessParameter>();
 
   ngOnInit(): void {
@@ -21,24 +42,43 @@ export class ParameterSelectComponent implements OnInit {
     }
   }
 
+  /**
+   * Returns the script parameter based on the currently selected name
+   */
   get selectedScriptParameter(): ScriptParameter {
     return this.parameters.find((parameter: ScriptParameter) => parameter.name === this.selectedParameter);
   }
 
+  /**
+   * Return the currently selected parameter name
+   */
   get selectedParameter(): string {
     return this.parameterValue ? this.parameterValue.name : undefined;
   }
 
+  /**
+   * Sets the currently selected parameter based on the provided parameter name
+   * Emits the new value from the changeParameter output
+   * @param value The parameter name to set
+   */
   set selectedParameter(value: string) {
     this.parameterValue.name = value;
     this.selectedParameterValue = undefined;
     this.changeParameter.emit(this.parameterValue);
   }
 
+  /**
+   * Returns the currently selected parameter value
+   */
   get selectedParameterValue(): any {
     return this.parameterValue ? this.parameterValue.value : undefined;
   }
 
+  /**
+   * Sets the currently selected value for the parameter
+   * Emits the new value from the changeParameter output
+   * @param value The parameter value to set
+   */
   set selectedParameterValue(value: any) {
     this.parameterValue.value = value;
     this.changeParameter.emit(this.parameterValue);
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.spec.ts b/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.spec.ts
index 824d922236..15f09d98f0 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.spec.ts
@@ -1,25 +1,32 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { BooleanValueInputComponent } from './boolean-value-input.component';
+import { DebugElement } from '@angular/core';
+import { By } from '@angular/platform-browser';
 
-describe('StringValueInputComponent', () => {
+describe('BooleanValueInputComponent', () => {
   let component: BooleanValueInputComponent;
   let fixture: ComponentFixture<BooleanValueInputComponent>;
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      declarations: [ BooleanValueInputComponent ]
+      declarations: [BooleanValueInputComponent]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(BooleanValueInputComponent);
     component = fixture.componentInstance;
+    spyOn(component.updateValue, 'emit');
     fixture.detectChanges();
   });
 
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should emit true onInit', () => {
+    expect(component.updateValue.emit).toHaveBeenCalledWith(true);
+  });
 });
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.ts b/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.ts
index 0c4faf0667..c75c5cf240 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/boolean-value-input/boolean-value-input.component.ts
@@ -1,6 +1,9 @@
 import { Component, OnInit } from '@angular/core';
 import { ValueInputComponent } from '../value-input.component';
 
+/**
+ * Represents the value of a boolean parameter
+ */
 @Component({
   selector: 'ds-boolean-value-input',
   templateUrl: './boolean-value-input.component.html',
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.html b/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.html
index 3b349bfd43..7eeca02974 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.html
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.html
@@ -1,6 +1,6 @@
-<input required #string="ngModel" type="date" class="form-control" id="string-value-input" [ngModel]="value" (ngModelChange)="setValue($event)"/>
+<input required #string="ngModel" type="text" class="form-control" id="string-value-input" [ngModel]="value" (ngModelChange)="setValue($event)"/>
 <div *ngIf="string.invalid && (string.dirty || string.touched)"
-     class="alert alert-danger">
+     class="alert alert-danger validation-error">
     <div *ngIf="string.errors.required">
         {{'process.new.parameter.string.required' | translate}}
     </div>
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.spec.ts b/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.spec.ts
index 5c4b44c3a3..ab50efc93c 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.spec.ts
@@ -1,16 +1,28 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { async, ComponentFixture, fakeAsync, TestBed, tick } from '@angular/core/testing';
 
 import { DateValueInputComponent } from './date-value-input.component';
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { MockTranslateLoader } from '../../../../../shared/mocks/mock-translate-loader';
+import { By } from '@angular/platform-browser';
 
-describe('StringValueInputComponent', () => {
+describe('DateValueInputComponent', () => {
   let component: DateValueInputComponent;
   let fixture: ComponentFixture<DateValueInputComponent>;
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      declarations: [ DateValueInputComponent ]
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [DateValueInputComponent]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
@@ -22,4 +34,37 @@ describe('StringValueInputComponent', () => {
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should not show a validation error if the input field was left untouched but left empty', () => {
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  });
+
+  it('should show a validation error if the input field was touched but left empty',  fakeAsync(() => {
+    component.value = '';
+    fixture.detectChanges();
+    tick();
+
+    const input = fixture.debugElement.query(By.css('input'));
+    input.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeTruthy();
+  }));
+
+  it('should not show a validation error if the input field was touched but not left empty', fakeAsync(() => {
+    component.value = 'testValue';
+    fixture.detectChanges();
+    tick();
+
+    const input = fixture.debugElement.query(By.css('input'));
+    input.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  }));
 });
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.ts b/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.ts
index f266bebb9a..7476e2ac6b 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/date-value-input/date-value-input.component.ts
@@ -1,12 +1,18 @@
 import { Component, OnInit } from '@angular/core';
 import { ValueInputComponent } from '../value-input.component';
 
+/**
+ * Represents the user inputted value of a date parameter
+ */
 @Component({
   selector: 'ds-date-value-input',
   templateUrl: './date-value-input.component.html',
   styleUrls: ['./date-value-input.component.scss']
 })
 export class DateValueInputComponent extends ValueInputComponent<string> {
+  /**
+   * The current value of the date string
+   */
   value: string;
 
   setValue(value) {
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.html b/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.html
index aa58d1ffac..9f61141a00 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.html
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.html
@@ -3,7 +3,7 @@
 </label>
 <input requireFile #file="ngModel" type="file" id="file-upload" class="form-control-file d-none" [ngModel]="file" (ngModelChange)="setFile($event)"/>
 <div *ngIf="file.invalid && (file.dirty || file.touched)"
-     class="alert alert-danger">
+     class="alert alert-danger validation-error">
     <div *ngIf="file.errors.required">
         {{'process.new.parameter.file.required' | translate}}
     </div>
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.spec.ts b/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.spec.ts
index b7de5e5a23..a1d5b0dc43 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.spec.ts
@@ -1,6 +1,13 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { async, ComponentFixture, fakeAsync, TestBed, tick } from '@angular/core/testing';
 
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { MockTranslateLoader } from '../../../../../shared/mocks/mock-translate-loader';
+import { By } from '@angular/platform-browser';
 import { FileValueInputComponent } from './file-value-input.component';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
+import { FileValueAccessorDirective } from '../../../../../shared/utils/file-value-accessor.directive';
+import { FileValidator } from '../../../../../shared/utils/require-file.validator';
 
 describe('FileValueInputComponent', () => {
   let component: FileValueInputComponent;
@@ -8,9 +15,19 @@ describe('FileValueInputComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      declarations: [ FileValueInputComponent ]
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [FileValueInputComponent, FileValueAccessorDirective, FileValidator],
+      schemas: [NO_ERRORS_SCHEMA]
+
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
@@ -22,4 +39,19 @@ describe('FileValueInputComponent', () => {
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should not show a validation error if the input field was left untouched but left empty', () => {
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  });
+
+  it('should show a validation error if the input field was touched but left empty',  () => {
+    const input = fixture.debugElement.query(By.css('input'));
+    input.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeTruthy();
+  });
 });
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.ts b/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.ts
index ce54207312..da16119d35 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/file-value-input/file-value-input.component.ts
@@ -1,16 +1,21 @@
 import { Component } from '@angular/core';
 import { ValueInputComponent } from '../value-input.component';
 
+/**
+ * Represents the user inputted value of a file parameter
+ */
 @Component({
   selector: 'ds-file-value-input',
   templateUrl: './file-value-input.component.html',
   styleUrls: ['./file-value-input.component.scss']
 })
 export class FileValueInputComponent extends ValueInputComponent<File> {
+  /**
+   * The current value of the file
+   */
   file: File;
   setFile(files) {
     this.file = files.length > 0 ? files[0] : undefined;
-    console.log(this.file);
     this.updateValue.emit(this.file);
   }
 }
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.spec.ts b/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.spec.ts
index 91045ea0f4..ef315ac981 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.spec.ts
@@ -1,25 +1,105 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { ParameterValueInputComponent } from './parameter-value-input.component';
+import { ScriptParameter } from '../../../scripts/script-parameter.model';
+import { ScriptParameterType } from '../../../scripts/script-parameter-type.model';
+import { By } from '@angular/platform-browser';
+import { BooleanValueInputComponent } from './boolean-value-input/boolean-value-input.component';
+import { StringValueInputComponent } from './string-value-input/string-value-input.component';
+import { FileValueInputComponent } from './file-value-input/file-value-input.component';
+import { DateValueInputComponent } from './date-value-input/date-value-input.component';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { MockTranslateLoader } from '../../../../shared/testing/mock-translate-loader';
+import { FileValueAccessorDirective } from '../../../../shared/utils/file-value-accessor.directive';
+import { FileValidator } from '../../../../shared/utils/require-file.validator';
 
 describe('ParameterValueInputComponent', () => {
   let component: ParameterValueInputComponent;
   let fixture: ComponentFixture<ParameterValueInputComponent>;
+  let booleanParameter;
+  let stringParameter;
+  let fileParameter;
+  let dateParameter;
+  let outputParameter;
+
+  function init() {
+    booleanParameter = Object.assign(new ScriptParameter(), { type: ScriptParameterType.BOOLEAN });
+    stringParameter = Object.assign(new ScriptParameter(), { type: ScriptParameterType.STRING });
+    fileParameter = Object.assign(new ScriptParameter(), { type: ScriptParameterType.FILE });
+    dateParameter = Object.assign(new ScriptParameter(), { type: ScriptParameterType.DATE });
+    outputParameter = Object.assign(new ScriptParameter(), { type: ScriptParameterType.OUTPUT });
+  }
 
   beforeEach(async(() => {
+    init();
     TestBed.configureTestingModule({
-      declarations: [ ParameterValueInputComponent ]
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [
+        ParameterValueInputComponent,
+        BooleanValueInputComponent,
+        StringValueInputComponent,
+        FileValueInputComponent,
+        DateValueInputComponent,
+        FileValueAccessorDirective,
+        FileValidator
+      ],
+      schemas: [NO_ERRORS_SCHEMA]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(ParameterValueInputComponent);
     component = fixture.componentInstance;
+    component.parameter = stringParameter;
     fixture.detectChanges();
   });
 
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should show a BooleanValueInputComponent when the parameter type is boolean', () => {
+    component.parameter = booleanParameter;
+    fixture.detectChanges();
+    const valueInput = fixture.debugElement.query(By.directive(BooleanValueInputComponent));
+    expect(valueInput).toBeTruthy();
+  });
+
+  it('should show a StringValueInputComponent when the parameter type is string', () => {
+    component.parameter = stringParameter;
+    fixture.detectChanges();
+    const valueInput = fixture.debugElement.query(By.directive(StringValueInputComponent));
+    expect(valueInput).toBeTruthy();
+  });
+
+  it('should show a FileValueInputComponent when the parameter type is file', () => {
+    component.parameter = fileParameter;
+    fixture.detectChanges();
+    const valueInput = fixture.debugElement.query(By.directive(FileValueInputComponent));
+    expect(valueInput).toBeTruthy();
+  });
+
+  it('should show a DateValueInputComponent when the parameter type is date', () => {
+    component.parameter = dateParameter;
+    fixture.detectChanges();
+    const valueInput = fixture.debugElement.query(By.directive(DateValueInputComponent));
+    expect(valueInput).toBeTruthy();
+  });
+
+  it('should show a StringValueInputComponent when the parameter type is output', () => {
+    component.parameter = outputParameter;
+    fixture.detectChanges();
+    const valueInput = fixture.debugElement.query(By.directive(StringValueInputComponent));
+    expect(valueInput).toBeTruthy();
+  });
 });
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.ts b/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.ts
index 5adb96505d..42479f4041 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/parameter-value-input.component.ts
@@ -2,13 +2,27 @@ import { Component, EventEmitter, Input, OnChanges, OnInit, Output } from '@angu
 import { ScriptParameterType } from '../../../scripts/script-parameter-type.model';
 import { ScriptParameter } from '../../../scripts/script-parameter.model';
 
+/**
+ * Component that renders the correct parameter value input based the script parameter's type
+ */
 @Component({
   selector: 'ds-parameter-value-input',
   templateUrl: './parameter-value-input.component.html',
   styleUrls: ['./parameter-value-input.component.scss']
 })
 export class ParameterValueInputComponent {
+  /**
+   * The current script parameter
+   */
   @Input() parameter: ScriptParameter;
+
+  /**
+   * Emits the value of the input when its updated
+   */
   @Output() updateValue: EventEmitter<any> = new EventEmitter();
+
+  /**
+   * The available script parameter types
+   */
   parameterTypes = ScriptParameterType;
 }
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.html b/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.html
index e0693efffa..7eeca02974 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.html
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.html
@@ -1,6 +1,6 @@
 <input required #string="ngModel" type="text" class="form-control" id="string-value-input" [ngModel]="value" (ngModelChange)="setValue($event)"/>
 <div *ngIf="string.invalid && (string.dirty || string.touched)"
-     class="alert alert-danger">
+     class="alert alert-danger validation-error">
     <div *ngIf="string.errors.required">
         {{'process.new.parameter.string.required' | translate}}
     </div>
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.spec.ts b/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.spec.ts
index 11af3a4b23..c6f04ada20 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.spec.ts
@@ -1,5 +1,9 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { async, ComponentFixture, fakeAsync, TestBed, tick } from '@angular/core/testing';
 
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { MockTranslateLoader } from '../../../../../shared/mocks/mock-translate-loader';
+import { By } from '@angular/platform-browser';
 import { StringValueInputComponent } from './string-value-input.component';
 
 describe('StringValueInputComponent', () => {
@@ -8,9 +12,17 @@ describe('StringValueInputComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      declarations: [ StringValueInputComponent ]
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [StringValueInputComponent]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
@@ -22,4 +34,37 @@ describe('StringValueInputComponent', () => {
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should not show a validation error if the input field was left untouched but left empty', () => {
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  });
+
+  it('should show a validation error if the input field was touched but left empty',  fakeAsync(() => {
+    component.value = '';
+    fixture.detectChanges();
+    tick();
+
+    const input = fixture.debugElement.query(By.css('input'));
+    input.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeTruthy();
+  }));
+
+  it('should not show a validation error if the input field was touched but not left empty', fakeAsync(() => {
+    component.value = 'testValue';
+    fixture.detectChanges();
+    tick();
+
+    const input = fixture.debugElement.query(By.css('input'));
+    input.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  }));
 });
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.ts b/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.ts
index 86db8b87d9..bfcc277b3d 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/string-value-input/string-value-input.component.ts
@@ -1,12 +1,18 @@
-import { Component, OnInit } from '@angular/core';
+import { Component } from '@angular/core';
 import { ValueInputComponent } from '../value-input.component';
 
+/**
+ * Represents the user inputted value of a string parameter
+ */
 @Component({
   selector: 'ds-string-value-input',
   templateUrl: './string-value-input.component.html',
   styleUrls: ['./string-value-input.component.scss']
 })
 export class StringValueInputComponent extends ValueInputComponent<string> {
+  /**
+   * The current value of the string
+   */
   value: string;
 
   setValue(value) {
diff --git a/src/app/process-page/new/process-parameters/parameter-value-input/value-input.component.ts b/src/app/process-page/new/process-parameters/parameter-value-input/value-input.component.ts
index 949c48728d..a46e059407 100644
--- a/src/app/process-page/new/process-parameters/parameter-value-input/value-input.component.ts
+++ b/src/app/process-page/new/process-parameters/parameter-value-input/value-input.component.ts
@@ -1,5 +1,11 @@
 import { EventEmitter, Output } from '@angular/core';
 
+/**
+ * Abstract class that represents value input components
+ */
 export abstract class ValueInputComponent<T> {
+  /**
+   * Used by the subclasses to emit the value when it's updated
+   */
   @Output() updateValue: EventEmitter<T> = new EventEmitter<T>()
 }
diff --git a/src/app/process-page/new/process-parameters/process-parameters.component.spec.ts b/src/app/process-page/new/process-parameters/process-parameters.component.spec.ts
index 0eb4edb864..2a95d542f0 100644
--- a/src/app/process-page/new/process-parameters/process-parameters.component.spec.ts
+++ b/src/app/process-page/new/process-parameters/process-parameters.component.spec.ts
@@ -1,25 +1,64 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { ProcessParametersComponent } from './process-parameters.component';
+import { ProcessParameter } from '../../processes/process-parameter.model';
+import { By } from '@angular/platform-browser';
+import { ParameterSelectComponent } from './parameter-select/parameter-select.component';
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { MockTranslateLoader } from '../../../shared/testing/mock-translate-loader';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
+import { Script } from '../../scripts/script.model';
+import { ScriptParameter } from '../../scripts/script-parameter.model';
 
 describe('ProcessParametersComponent', () => {
   let component: ProcessParametersComponent;
   let fixture: ComponentFixture<ProcessParametersComponent>;
+  let parameterValues;
+  let script;
+
+  function init() {
+    const param1 = new ScriptParameter();
+    const param2 = new ScriptParameter();
+    script = Object.assign(new Script(), { parameters: [param1, param2] });
+    parameterValues = [
+      Object.assign(new ProcessParameter(), { name: '-a', value: 'bla' }),
+      Object.assign(new ProcessParameter(), { name: '-b', value: '123' }),
+      Object.assign(new ProcessParameter(), { name: '-c', value: 'value' }),
+    ]
+  }
 
   beforeEach(async(() => {
+    init();
     TestBed.configureTestingModule({
-      declarations: [ ProcessParametersComponent ]
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [ProcessParametersComponent, ParameterSelectComponent],
+      schemas: [NO_ERRORS_SCHEMA]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(ProcessParametersComponent);
     component = fixture.componentInstance;
+    component.script = script;
+    component.parameterValues = parameterValues;
     fixture.detectChanges();
   });
 
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should render a ParameterSelectComponent for each parameter value of the component', () => {
+    const selectComponents = fixture.debugElement.queryAll(By.directive(ParameterSelectComponent));
+    expect(selectComponents.length).toBe(parameterValues.length);
+  });
 });
diff --git a/src/app/process-page/new/process-parameters/process-parameters.component.ts b/src/app/process-page/new/process-parameters/process-parameters.component.ts
index 156c5a5ebf..765410dc8d 100644
--- a/src/app/process-page/new/process-parameters/process-parameters.component.ts
+++ b/src/app/process-page/new/process-parameters/process-parameters.component.ts
@@ -3,27 +3,54 @@ import { Script } from '../../scripts/script.model';
 import { ProcessParameter } from '../../processes/process-parameter.model';
 import { hasValue } from '../../../shared/empty.util';
 
+/**
+ * Component that represents the selected list of parameters for a script
+ */
 @Component({
   selector: 'ds-process-parameters',
   templateUrl: './process-parameters.component.html',
   styleUrls: ['./process-parameters.component.scss']
 })
 export class ProcessParametersComponent implements OnChanges {
+  /**
+   * The currently selected script
+   */
   @Input() script: Script;
+  /**
+   * Emits the parameter values when they're updated
+   */
   @Output() updateParameters: EventEmitter<ProcessParameter[]> = new EventEmitter();
+
+  /**
+   * The current parameter values
+   */
   parameterValues: ProcessParameter[];
 
+  /**
+   * Makes sure the parameters are reset when the script changes
+   * @param changes
+   */
   ngOnChanges(changes: SimpleChanges): void {
     if (changes.script) {
       this.initParameters()
     }
   }
 
+  /**
+   * Empties the parameter values
+   * Initializes the first parameter value
+   */
   initParameters() {
     this.parameterValues = [];
     this.addParameter();
   }
 
+  /**
+   * Updates a single parameter value using its new value and index
+   * Adds a new parameter when the last of the parameter values is changed
+   * @param processParameter The new value of the parameter
+   * @param index The index of the parameter
+   */
   updateParameter(processParameter: ProcessParameter, index: number) {
     this.parameterValues[index] = processParameter;
     if (index === this.parameterValues.length - 1) {
@@ -32,10 +59,17 @@ export class ProcessParametersComponent implements OnChanges {
     this.updateParameters.emit(this.parameterValues.filter((param: ProcessParameter) => hasValue(param.name)));
   }
 
+  /**
+   * Removes a parameter value from the list
+   * @param index The index of the parameter to remove
+   */
   removeParameter(index: number) {
     this.parameterValues = this.parameterValues.filter((value, i) => i !== index);
   }
 
+  /**
+   * Adds an empty parameter value to the end of the list
+   */
   addParameter() {
     this.parameterValues = [...this.parameterValues, new ProcessParameter()];
   }
diff --git a/src/app/process-page/new/script-help/script-help.component.html b/src/app/process-page/new/script-help/script-help.component.html
index a12fafdf4c..a9bb114f2e 100644
--- a/src/app/process-page/new/script-help/script-help.component.html
+++ b/src/app/process-page/new/script-help/script-help.component.html
@@ -1,7 +1,7 @@
 <h3>{{script?.name}}</h3>
 <span>{{script?.description}}</span>
 
-<table class="table-border less mt-3">
+<table class="table-borderless mt-3 text-secondary">
     <tr *ngFor="let param of script?.parameters">
         <td>{{param.name}} {{param.nameLong}} {{param.type !== 'boolean' ? '<' + param.type + '>' : ''}}</td>
         <td>{{param.description}}</td>
diff --git a/src/app/process-page/new/script-help/script-help.component.spec.ts b/src/app/process-page/new/script-help/script-help.component.spec.ts
index 286afa9922..6ebcb5b6c3 100644
--- a/src/app/process-page/new/script-help/script-help.component.spec.ts
+++ b/src/app/process-page/new/script-help/script-help.component.spec.ts
@@ -1,12 +1,29 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { ScriptHelpComponent } from './script-help.component';
+import { ScriptParameter } from '../../scripts/script-parameter.model';
+import { Script } from '../../scripts/script.model';
+import { ScriptParameterType } from '../../scripts/script-parameter-type.model';
+import { By } from '@angular/platform-browser';
 
 describe('ScriptHelpComponent', () => {
   let component: ScriptHelpComponent;
   let fixture: ComponentFixture<ScriptHelpComponent>;
+  let script;
 
+  function init() {
+    const param1 = Object.assign(
+      new ScriptParameter(),
+      {name: '-d', description: 'Lorem ipsum dolor sit amet,', type: ScriptParameterType.DATE}
+    );
+    const param2 = Object.assign(
+      new ScriptParameter(),
+      {name: '-f', description: 'consetetur sadipscing elitr', type: ScriptParameterType.BOOLEAN}
+    );
+    script = Object.assign(new Script(), { parameters: [param1, param2] });
+  }
   beforeEach(async(() => {
+    init();
     TestBed.configureTestingModule({
       declarations: [ ScriptHelpComponent ]
     })
@@ -16,10 +33,20 @@ describe('ScriptHelpComponent', () => {
   beforeEach(() => {
     fixture = TestBed.createComponent(ScriptHelpComponent);
     component = fixture.componentInstance;
+    component.script = script;
     fixture.detectChanges();
   });
 
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should show the name and description for each parameter of the script', () => {
+    const rows = fixture.debugElement.queryAll(By.css('tr'));
+    expect(rows.length).toBe(script.parameters.length);
+    script.parameters.forEach((parameter, index) => {
+      expect(rows[index].queryAll(By.css('td'))[0].nativeElement.textContent).toContain(parameter.name);
+      expect(rows[index].queryAll(By.css('td'))[1].nativeElement.textContent.trim()).toEqual(parameter.description);
+    })
+  });
 });
diff --git a/src/app/process-page/new/script-help/script-help.component.ts b/src/app/process-page/new/script-help/script-help.component.ts
index 0ff4a90ae4..7061e59730 100644
--- a/src/app/process-page/new/script-help/script-help.component.ts
+++ b/src/app/process-page/new/script-help/script-help.component.ts
@@ -1,11 +1,17 @@
 import { Component, Input } from '@angular/core';
 import { Script } from '../../scripts/script.model';
 
+/**
+ * Components that represents a help section for the script use and parameters
+ */
 @Component({
   selector: 'ds-script-help',
   templateUrl: './script-help.component.html',
   styleUrls: ['./script-help.component.scss']
 })
 export class ScriptHelpComponent {
+  /**
+   * The current script to show the help information for
+   */
   @Input() script: Script;
 }
diff --git a/src/app/process-page/new/scripts-select/scripts-select.component.html b/src/app/process-page/new/scripts-select/scripts-select.component.html
index 44b06079ae..d34947c137 100644
--- a/src/app/process-page/new/scripts-select/scripts-select.component.html
+++ b/src/app/process-page/new/scripts-select/scripts-select.component.html
@@ -12,7 +12,7 @@
     </select>
 
     <div *ngIf="script.invalid && (script.dirty || script.touched)"
-         class="alert alert-danger">
+         class="alert alert-danger validation-error">
         <div *ngIf="script.errors.required">
             {{'process.new.select-script.required' | translate}}
         </div>
diff --git a/src/app/process-page/new/scripts-select/scripts-select.component.spec.ts b/src/app/process-page/new/scripts-select/scripts-select.component.spec.ts
index b433d633f1..f7e1f82735 100644
--- a/src/app/process-page/new/scripts-select/scripts-select.component.spec.ts
+++ b/src/app/process-page/new/scripts-select/scripts-select.component.spec.ts
@@ -1,25 +1,99 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { async, ComponentFixture, fakeAsync, TestBed, tick } from '@angular/core/testing';
 
+import { FormsModule } from '@angular/forms';
+import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
+import { By } from '@angular/platform-browser';
 import { ScriptsSelectComponent } from './scripts-select.component';
+import { MockTranslateLoader } from '../../../shared/testing/mock-translate-loader';
+import { Script } from '../../scripts/script.model';
+import { ScriptDataService } from '../../../core/data/processes/script-data.service';
+import { ActivatedRoute, Router } from '@angular/router';
+import { RouterStub } from '../../../shared/testing/router-stub';
+import { ActivatedRouteStub } from '../../../shared/testing/active-router-stub';
+import { createSuccessfulRemoteDataObject$ } from '../../../shared/testing/utils';
+import { PaginatedList } from '../../../core/data/paginated-list';
+import { NO_ERRORS_SCHEMA } from '@angular/core';
 
 describe('ScriptsSelectComponent', () => {
   let component: ScriptsSelectComponent;
   let fixture: ComponentFixture<ScriptsSelectComponent>;
+  let scriptService;
+  let script1;
+  let script2;
+
+  function init() {
+    script1 = new Script();
+    script2 = new Script();
+    scriptService = jasmine.createSpyObj('scriptService',
+      {
+        findAll: createSuccessfulRemoteDataObject$(new PaginatedList(undefined, [script1, script2]))
+      }
+    )
+  }
 
   beforeEach(async(() => {
+    init();
     TestBed.configureTestingModule({
-      declarations: [ ScriptsSelectComponent ]
+      imports: [
+        FormsModule,
+        TranslateModule.forRoot({
+          loader: {
+            provide: TranslateLoader,
+            useClass: MockTranslateLoader
+          }
+        })],
+      declarations: [ScriptsSelectComponent],
+      providers: [
+        { provide: ScriptDataService, useValue: scriptService },
+        { provide: Router, useClass: RouterStub },
+        { provide: ActivatedRoute, useValue: new ActivatedRouteStub() },
+      ],
+      schemas: [NO_ERRORS_SCHEMA]
     })
-    .compileComponents();
+      .compileComponents();
   }));
 
   beforeEach(() => {
     fixture = TestBed.createComponent(ScriptsSelectComponent);
     component = fixture.componentInstance;
+    (component as any)._selectedScript = new Script();
     fixture.detectChanges();
   });
 
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  it('should not show a validation error if the input field was left untouched but left empty', () => {
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  });
+
+  it('should show a validation error if the input field was touched but left empty', fakeAsync(() => {
+    (component as any)._selectedScript.id = '';
+    fixture.detectChanges();
+    tick();
+
+    const select = fixture.debugElement.query(By.css('select'));
+    select.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeTruthy();
+  }));
+
+  it('should not show a validation error if the input field was touched but not left empty', fakeAsync(() => {
+    (component as any)._selectedScript.id = 'testValue';
+    fixture.detectChanges();
+    tick();
+
+    const select = fixture.debugElement.query(By.css('select'));
+    select.triggerEventHandler('blur', null);
+
+    fixture.detectChanges();
+
+    const validationError = fixture.debugElement.query(By.css('.validation-error'));
+    expect(validationError).toBeFalsy();
+  }));
 });
diff --git a/src/app/process-page/new/scripts-select/scripts-select.component.ts b/src/app/process-page/new/scripts-select/scripts-select.component.ts
index c0daa94fb0..a3d3095bf9 100644
--- a/src/app/process-page/new/scripts-select/scripts-select.component.ts
+++ b/src/app/process-page/new/scripts-select/scripts-select.component.ts
@@ -6,10 +6,13 @@ import { getRemoteDataPayload, getSucceededRemoteData } from '../../../core/shar
 import { PaginatedList } from '../../../core/data/paginated-list';
 import { distinctUntilChanged, map, switchMap, take } from 'rxjs/operators';
 import { ActivatedRoute, Params, Router } from '@angular/router';
-import { hasValue, hasValueOperator } from '../../../shared/empty.util';
+import { hasValue } from '../../../shared/empty.util';
 
 const SCRIPT_QUERY_PARAMETER = 'script';
 
+/**
+ * Component used to select a script
+ */
 @Component({
   selector: 'ds-scripts-select',
   templateUrl: './scripts-select.component.html',
@@ -28,6 +31,10 @@ export class ScriptsSelectComponent implements OnInit, OnDestroy {
   ) {
   }
 
+  /**
+   * Sets all available scripts
+   * Checks if the route contains a script ID and auto selects this scripts
+   */
   ngOnInit() {
     this.scripts$ = this.scriptService.findAll({ elementsPerPage: Number.MAX_SAFE_INTEGER })
       .pipe(
@@ -55,10 +62,17 @@ export class ScriptsSelectComponent implements OnInit, OnDestroy {
       });
   }
 
+  /**
+   * Returns the identifier of the selected script
+   */
   get selectedScript(): string {
     return this._selectedScript ? this._selectedScript.id : undefined;
   }
 
+  /**
+   * Sets the currently selected script by navigating to the correct route using the scripts ID
+   * @param value The identifier of the script
+   */
   set selectedScript(value: string) {
     this.router.navigate([],
       {
diff --git a/src/app/process-page/processes/process.model.ts b/src/app/process-page/processes/process.model.ts
index 4cf3d507a4..cd2c03d6f7 100644
--- a/src/app/process-page/processes/process.model.ts
+++ b/src/app/process-page/processes/process.model.ts
@@ -8,6 +8,9 @@ import { excludeFromEquals } from '../../core/utilities/equals.decorators';
 import { ResourceType } from '../../core/shared/resource-type';
 import { typedObject } from '../../core/cache/builders/build-decorators';
 
+/**
+ * Object representing a process
+ */
 @typedObject
 export class Process implements CacheableObject {
   static type = PROCESS;
diff --git a/src/app/process-page/scripts/script.model.ts b/src/app/process-page/scripts/script.model.ts
index 1cd3136c88..e94d233fc2 100644
--- a/src/app/process-page/scripts/script.model.ts
+++ b/src/app/process-page/scripts/script.model.ts
@@ -7,6 +7,9 @@ import { typedObject } from '../../core/cache/builders/build-decorators';
 import { excludeFromEquals } from '../../core/utilities/equals.decorators';
 import { ResourceType } from '../../core/shared/resource-type';
 
+/**
+ * Object representing a script
+ */
 @typedObject
 export class Script implements CacheableObject {
   static type = SCRIPT;
diff --git a/src/app/shared/uploader/uploader.component.ts b/src/app/shared/uploader/uploader.component.ts
index a5fce98ceb..935d196d08 100644
--- a/src/app/shared/uploader/uploader.component.ts
+++ b/src/app/shared/uploader/uploader.component.ts
@@ -113,15 +113,12 @@ export class UploaderComponent {
   ngAfterViewInit() {
     // Maybe to remove: needed to avoid CORS issue with our temp upload server
     this.uploader.onAfterAddingFile = ((item) => {
-      console.log(item);
-
       item.withCredentials = false;
     });
     if (isUndefined(this.onBeforeUpload)) {
       this.onBeforeUpload = () => {return};
     }
     this.uploader.onBeforeUploadItem = (item) => {
-
       if (item.url !== this.uploader.options.url) {
         item.url = this.uploader.options.url;
       }
@@ -146,8 +143,6 @@ export class UploaderComponent {
     };
     this.uploader.onProgressAll = () => this.onProgress();
     this.uploader.onProgressItem = () => this.onProgress();
-
-    console.log(this.uploader.options.formatDataFunction());
   }
 
   /**
diff --git a/src/app/shared/utils/file-value-accessor.directive.ts b/src/app/shared/utils/file-value-accessor.directive.ts
index 8c4f071cbe..bcd3381329 100644
--- a/src/app/shared/utils/file-value-accessor.directive.ts
+++ b/src/app/shared/utils/file-value-accessor.directive.ts
@@ -13,6 +13,9 @@ import {NG_VALUE_ACCESSOR, ControlValueAccessor} from '@angular/forms';
         { provide: NG_VALUE_ACCESSOR, useExisting: FileValueAccessorDirective, multi: true }
     ]
 })
+/**
+ * Value accessor directive for inputs of type 'file'
+ */
 export class FileValueAccessorDirective implements ControlValueAccessor {
     value: any;
     onChange = (_) => { /* empty */ };
diff --git a/src/app/shared/utils/require-file.validator.ts b/src/app/shared/utils/require-file.validator.ts
index c6480e1715..9fa89c4188 100644
--- a/src/app/shared/utils/require-file.validator.ts
+++ b/src/app/shared/utils/require-file.validator.ts
@@ -8,9 +8,12 @@ import {NG_VALIDATORS, Validator, FormControl} from '@angular/forms';
         { provide: NG_VALIDATORS, useExisting: FileValidator, multi: true },
     ]
 })
+/**
+ * Validator directive to validate if a file is selected
+ */
 export class FileValidator implements Validator {
     static validate(c: FormControl): {[key: string]: any} {
-      return c.value == null || c.value.length === 0 ? { required : true} : null;
+      return c.value == null || c.value.length === 0 ? { required : true } : null;
     }
 
     validate(c: FormControl): {[key: string]: any} {