WISE-Community · hirokiterashima · Mar 3, 2026 · Feb 25, 2026
diff --git a/...app/authoring-tool/add-component/choose-new-component/choose-new-component.component.html b/...app/authoring-tool/add-component/choose-new-component/choose-new-component.component.html
@@ -1,7 +1,7 @@
-<h2 mat-dialog-title i18n>Add New Component</h2>
+<h2 mat-dialog-title i18n>Add New Activity</h2>
 <mat-dialog-content>
   <p class="flex flex-wrap justify-start items-center gap-2">
-    <span i18n>Select the component type you want to add or</span>
+    <span i18n>Select the activity you want to add or</span>
     <button mat-raised-button color="primary" (click)="goToImportComponent()" i18n>
       import from another unit
     </button>

diff --git a/src/app/authoring-tool/edit-component-json/edit-component-json.component.html b/src/app/authoring-tool/edit-component-json/edit-component-json.component.html
@@ -16,7 +16,7 @@
   <div class="flex flex-col gap-2">
     <span i18n style="color: red">Close the JSON view to save the changes</span>
     <mat-form-field class="w-full">
-      <mat-label i18n>Edit Component JSON</mat-label>
+      <mat-label i18n>Edit Activity JSON</mat-label>
       <textarea
         matInput
         cdkTextareaAutosize

diff --git a/src/app/authoring-tool/edit-component-rubric/edit-component-rubric.component.html b/src/app/authoring-tool/edit-component-rubric/edit-component-rubric.component.html
@@ -5,7 +5,7 @@
     color="primary"
     class="topButton enable-in-translation"
     (click)="showRubricAuthoring = !showRubricAuthoring"
-    matTooltip="Edit Component Rubric"
+    matTooltip="Edit activity rubric"
     i18n-matTooltip
     matTooltipPosition="above"
   >

diff --git a/src/app/authoring-tool/edit-component-width/edit-component-width.component.ts b/src/app/authoring-tool/edit-component-width/edit-component-width.component.ts
@@ -8,7 +8,7 @@ import { FormsModule } from '@angular/forms';
   imports: [FormsModule, MatFormFieldModule, MatInputModule],
   selector: 'edit-component-width',
   template: `<mat-form-field>
-    <mat-label i18n>Component Width</mat-label>
+    <mat-label i18n>Activity Width</mat-label>
     <input
       matInput
       type="number"

diff --git a/...ected-component-component-select/edit-connected-component-component-select.component.html b/...ected-component-component-select/edit-connected-component-component-select.component.html
@@ -1,5 +1,5 @@
 <mat-form-field>
-  <mat-label i18n>Component</mat-label>
+  <mat-label i18n>Activity</mat-label>
   <mat-select
     [(ngModel)]="connectedComponent.componentId"
     (ngModelChange)="connectedComponentComponentIdChanged()"
@@ -17,7 +17,7 @@
       >
         <span>{{ componentIndex + 1 }}. {{ component.type }} </span>
         @if (component.id === componentId) {
-          <span i18n>(This Component)</span>
+          <span i18n>(This activity)</span>
         }
       </mat-option>
     }

diff --git a/...ol/edit-connected-components-add-button/edit-connected-components-add-button.component.ts b/...ol/edit-connected-components-add-button/edit-connected-components-add-button.component.ts
@@ -10,13 +10,12 @@ import { MatTooltipModule } from '@angular/material/tooltip';
   template: `<div
     class="connected-components-label-div flex flex-row justify-start items-center gap-5"
   >
-    <label i18n>Connected Components</label>
+    <label i18n>Connected Activities</label>
     <button
       mat-raised-button
       color="primary"
       (click)="addConnectedComponent()"
-      matTooltip="Add Connected Component"
-      matTooltip
+      matTooltip="Add connected activity"
       i18n-matTooltipPosition="above"
     >
       <mat-icon>add</mat-icon>

diff --git a/src/app/authoring-tool/edit-connected-components/edit-connected-components.component.ts b/src/app/authoring-tool/edit-connected-components/edit-connected-components.component.ts
@@ -74,7 +74,7 @@ export class EditConnectedComponentsComponent implements OnInit {
   automaticallySetConnectedComponentFieldsIfPossible(connectedComponent: any): void {}
 
   deleteConnectedComponent(index: number): void {
-    if (confirm($localize`Are you sure you want to delete this connected component?`)) {
+    if (confirm($localize`Are you sure you want to delete this connected activity?`)) {
       this.connectedComponents.splice(index, 1);
       this.connectedComponentChanged();
     }

diff --git a/src/app/authoring-tool/edit-dynamic-prompt/edit-dynamic-prompt.component.html b/src/app/authoring-tool/edit-dynamic-prompt/edit-dynamic-prompt.component.html
@@ -12,7 +12,7 @@
   @if (componentContent.dynamicPrompt?.enabled) {
     <div>
       <div class="reference-component-div flex flex-row flex-wrap justify-start items-center gap-5">
-        <mat-label class="bold" i18n>Reference Component:</mat-label>
+        <mat-label class="bold" i18n>Reference Activity:</mat-label>
         <select-step-and-component
           [referenceComponent]="componentContent.dynamicPrompt.referenceComponent"
           [thisComponentId]="componentId"

diff --git a/src/app/authoring-tool/edit-question-bank/edit-question-bank.component.html b/src/app/authoring-tool/edit-question-bank/edit-question-bank.component.html
@@ -44,7 +44,7 @@
         </mat-form-field>
       </div>
       <div class="reference-component flex flex-row flex-wrap justify-start items-center gap-5">
-        <mat-label class="bold" i18n>Reference Component:</mat-label>
+        <mat-label class="bold" i18n>Reference Activity:</mat-label>
         <select-step-and-component
           [referenceComponent]="componentContent.questionBank.referenceComponent"
           [thisComponentId]="componentId"

diff --git a/src/app/authoring-tool/import-step/choose-import-unit/choose-import-unit.component.html b/src/app/authoring-tool/import-step/choose-import-unit/choose-import-unit.component.html
@@ -13,7 +13,7 @@
 @if (importType === 'step') {
   <h5 i18n>Choose a unit from which to import step(s).</h5>
 } @else {
-  <h5 i18n>Choose a unit from which to import component(s).</h5>
+  <h5 i18n>Choose a unit from which to import activities.</h5>
 }
 <mat-tab-group mat-stretch-tabs="false">
   <mat-tab label="My Units" i18n-label>

diff --git a/src/app/authoring-tool/import-step/choose-import-unit/choose-import-unit.component.ts b/src/app/authoring-tool/import-step/choose-import-unit/choose-import-unit.component.ts
@@ -30,7 +30,7 @@ export class ChooseImportUnitComponent {
   ) {}
 
   ngOnInit(): void {
-    this.importType = history.state.importType;
+    this.importType = history.state.importType ?? 'step';
     this.target = history.state;
     this.myProjects = this.configService.getAuthorableProjects();
     this.subscriptions.add(

diff --git a/src/app/authoring-tool/select-component/select-component.component.html b/src/app/authoring-tool/select-component/select-component.component.html
@@ -1,5 +1,5 @@
 <mat-form-field>
-  <mat-label i18n>Component</mat-label>
+  <mat-label i18n>Activity</mat-label>
   <mat-select [(ngModel)]="componentId" (ngModelChange)="componentChanged()">
     @for (component of components; track component; let componentIndex = $index) {
       <mat-option
@@ -8,7 +8,7 @@
       >
         <span>{{ componentIndex + 1 }}. {{ component.type }}</span>
         @if (component.id === thisComponentId) {
-          <span i18n>(This Component)</span>
+          <span i18n>(This activity)</span>
         }
       </mat-option>
     }

diff --git a/src/assets/wise5/authoringTool/addNode/add-your-own-node/add-your-own-node.component.html b/src/assets/wise5/authoringTool/addNode/add-your-own-node/add-your-own-node.component.html
@@ -6,11 +6,11 @@
       <mat-error i18n> Step Title is required </mat-error>
     }
   </mat-form-field>
-  <h5 i18n>Select components to add to your new step (optional):</h5>
+  <h5 i18n>Select activities to add to your new step (optional):</h5>
   <div class="flex flex-col md:flex-row">
     <div class="initial-components notice-bg-bg flex items-start md:w-1/3 lg:w-1/4">
       @if (initialComponents.length == 0) {
-        <div class="mat-small" i18n>No components added</div>
+        <div class="mat-small" i18n>No activities added</div>
       }
       @if (initialComponents.length > 0) {
         <div class="component-list w-full" cdkDropList (cdkDropListDropped)="drop($event)">
@@ -23,7 +23,7 @@ <h5 i18n>Select components to add to your new step (optional):</h5>
                 mat-icon-button
                 (click)="deleteComponent(i)"
                 i18n-aria-label
-                aria-label="Delete component"
+                aria-label="Delete activity"
               >
                 <mat-icon class="secondary-text">close</mat-icon>
               </button>

diff --git a/...wise5/authoringTool/components/component-info-dialog/component-info-dialog.component.html b/...wise5/authoringTool/components/component-info-dialog/component-info-dialog.component.html
@@ -1,5 +1,5 @@
 <div class="flex justify-start items-center">
-  <h2 mat-dialog-title i18n>Component Info</h2>
+  <h2 mat-dialog-title i18n>Activity Info</h2>
   <div class="flex grow"></div>
   <component-type-selector
     [componentType]="componentType"

diff --git a/...authoringTool/components/preview-component-dialog/preview-component-dialog.component.html b/...authoringTool/components/preview-component-dialog/preview-component-dialog.component.html
@@ -1,11 +1,7 @@
-<h2 mat-dialog-title i18n>Preview Component</h2>
+<h2 mat-dialog-title i18n>Preview Activity</h2>
 @if (canSaveStarterState) {
   <mat-divider />
-  <save-starter-state
-    class="notice-bg-bg"
-    [component]="component"
-    [starterState]="starterState"
-  />
+  <save-starter-state class="notice-bg-bg" [component]="component" [starterState]="starterState" />
 }
 <mat-divider />
 <mat-dialog-content>

diff --git a/...ool/constraint/component-constraint-authoring/component-constraint-authoring.component.ts b/...ool/constraint/component-constraint-authoring/component-constraint-authoring.component.ts
@@ -28,6 +28,6 @@ import { EditConstraintRemovalCriteriaComponent } from '../edit-constraint-remov
 export class ComponentConstraintAuthoringComponent extends ConstraintAuthoringComponent {
   constraintActions = [
     new ConstraintAction('', $localize`Please Choose an Action`),
-    new ConstraintAction('makeThisComponentNotVisible', $localize`Make This Component Not Visible`)
+    new ConstraintAction('makeThisComponentNotVisible', $localize`Make This Activity Not Visible`)
   ];
 }
diff --git a/...nstraint/edit-constraint-removal-criteria/edit-constraint-removal-criteria.component.html b/...nstraint/edit-constraint-removal-criteria/edit-constraint-removal-criteria.component.html
@@ -60,7 +60,7 @@
           <mat-label>{{ param.text }}</mat-label>
           <mat-select [(ngModel)]="criteria.params.componentId" (ngModelChange)="saveProject()">
             <mat-option [value]="''">
-              <span class="red" i18n>Please Choose a Component</span>
+              <span class="red" i18n>Please Choose an Activity</span>
             </mat-option>
             @for (
               component of getComponents(criteria.params.nodeId);

diff --git a/...constraint/edit-constraint-removal-criteria/edit-constraint-removal-criteria.component.ts b/...constraint/edit-constraint-removal-criteria/edit-constraint-removal-criteria.component.ts
@@ -38,7 +38,7 @@ export class EditConstraintRemovalCriteriaComponent implements OnInit {
   protected componentIdToIsSelectable: { [componentId: string]: boolean } = {};
   private componentParam: RemovalCriteriaParam = new RemovalCriteriaParam(
     'componentId',
-    $localize`Component`
+    $localize`Activity`
   );
   @Input() constraint: any;
   @Input() criteria: any;

diff --git a/src/assets/wise5/authoringTool/create-branch/create-branch.component.html b/src/assets/wise5/authoringTool/create-branch/create-branch.component.html
@@ -16,7 +16,7 @@ <h4 i18n>Create Branching Structure</h4>
     formGroup.controls['criteria'].value === SCORE_VALUE ||
     formGroup.controls['criteria'].value === CHOICE_CHOSEN_VALUE
   ) {
-    <p class="strong" i18n>Reference component:</p>
+    <p class="strong" i18n>Reference activity:</p>
     <div class="flex flex-wrap gap-2">
       <select-step
         [nodeId]="formGroup.controls['nodeId'].value"

diff --git a/src/assets/wise5/authoringTool/edit-branch/edit-branch.component.html b/src/assets/wise5/authoringTool/edit-branch/edit-branch.component.html
@@ -15,7 +15,7 @@ <h4 class="title" i18n>Edit Branching Structure</h4>
     formGroup.controls['criteria'].value === SCORE_VALUE ||
     formGroup.controls['criteria'].value === CHOICE_CHOSEN_VALUE
   ) {
-    <p class="strong" i18n>Reference component:</p>
+    <p class="strong" i18n>Reference activity:</p>
     <div class="flex flex-wrap gap-2">
       <select-step
         [nodeId]="formGroup.controls['nodeId'].value"

diff --git a/...horingTool/importComponent/choose-import-component/choose-import-component.component.html b/...horingTool/importComponent/choose-import-component/choose-import-component.component.html
@@ -1,4 +1,4 @@
-<h5 i18n>Choose the component(s) that you want to import, then select Submit.</h5>
+<h5 i18n>Choose the activities that you want to import, then select Submit.</h5>
 <p class="flex flex-wrap justify-start items-center gap-2">
   <strong i18n>Selected unit: {{ project?.metadata.title }}</strong>
   <button
@@ -50,7 +50,7 @@ <h6>{{ item.stepNumber }}: {{ item.node.title }}</h6>
                 mat-raised-button
                 color="primary"
                 (click)="previewNode(item.node)"
-                matTooltip="Preview component"
+                matTooltip="Preview activity"
                 matTooltipPosition="above"
                 i18n-matTooltip
               >

diff --git a/...ingTool/importComponent/choose-import-component/choose-import-component.component.spec.ts b/...ingTool/importComponent/choose-import-component/choose-import-component.component.spec.ts
@@ -83,7 +83,7 @@ function ngOnInit() {
       );
       expect(previewStepButton).toBeTruthy();
       const previewComponentButton = await loader.getHarness(
-        MatButtonHarness.with({ selector: '[mattooltip="Preview component"]' })
+        MatButtonHarness.with({ selector: '[mattooltip="Preview activity"]' })
       );
       expect(previewComponentButton).toBeTruthy();
     }));

diff --git a/src/assets/wise5/authoringTool/milestones-authoring/milestones-authoring.component.html b/src/assets/wise5/authoringTool/milestones-authoring/milestones-authoring.component.html
@@ -158,7 +158,7 @@ <h5 i18n>Milestone Satisfy Criteria</h5>
                           </mat-select>
                         </mat-form-field>
                         <mat-form-field class="width-200">
-                          <mat-label i18n>Component ID</mat-label>
+                          <mat-label i18n>Activity ID</mat-label>
                           <mat-select
                             [(ngModel)]="satisfyCriteria.componentId"
                             (ngModelChange)="save()"
@@ -205,7 +205,7 @@ <h5 i18n>Milestone Satisfy Criteria</h5>
                               satisfyCriteria.componentId
                             )
                           "
-                          matTooltip="Copy Node ID and Component ID to Milestone"
+                          matTooltip="Copy Node ID and Activity ID to Milestone"
                           i18n-matTooltip
                         >
                           <mat-icon>content_copy</mat-icon>
@@ -253,7 +253,7 @@ <h5 i18n>Location {{ locationIndex + 1 }}</h5>
                           </mat-select>
                         </mat-form-field>
                         <mat-form-field class="width-200">
-                          <mat-label i18n>Component ID</mat-label>
+                          <mat-label i18n>Activity ID</mat-label>
                           <mat-select [(ngModel)]="location.componentId" (ngModelChange)="save()">
                             @for (
                               component of getComponents(location.nodeId);
@@ -455,7 +455,7 @@ <h5 i18n>
                                       </mat-select>
                                     </mat-form-field>
                                     <mat-form-field class="width-300">
-                                      <mat-label i18n>Component ID</mat-label>
+                                      <mat-label i18n>Activity ID</mat-label>
                                       <mat-select
                                         [(ngModel)]="satisfyCriteria.componentId"
                                         (ngModelChange)="save()"

diff --git a/src/assets/wise5/authoringTool/milestones-authoring/milestones-authoring.component.ts b/src/assets/wise5/authoringTool/milestones-authoring/milestones-authoring.component.ts
@@ -247,7 +247,7 @@ export class MilestonesAuthoringComponent {
     nodeId: string,
     componentId: string
   ): void {
-    const message = $localize`Are you sure you want to copy the Node ID and Component ID to the rest of this Milestone?`;
+    const message = $localize`Are you sure you want to copy the Node ID and Activity ID to the rest of this Milestone?`;
     if (confirm(message)) {
       this.setNodeIdAndComponentIdToAllSatisfyCriteria(milestone, nodeId, componentId);
       this.setNodeIdAndComponentIdToAllLocations(milestone, nodeId, componentId);

diff --git a/src/assets/wise5/authoringTool/node/add-component-button/add-component-button.component.html b/src/assets/wise5/authoringTool/node/add-component-button/add-component-button.component.html
@@ -1,7 +1,7 @@
 <button
   mat-icon-button
   color="primary"
-  matTooltip="Add component"
+  matTooltip="Add activity"
   matTooltipPosition="after"
   (click)="addComponent()"
 >

diff --git a/src/assets/wise5/authoringTool/node/add-component-button/add-component-button.component.ts b/src/assets/wise5/authoringTool/node/add-component-button/add-component-button.component.ts
@@ -31,7 +31,7 @@ export class AddComponentButtonComponent {
   @Input() insertAfterComponentId: string = null;
   @Output() newComponentsEvent: EventEmitter<any> = new EventEmitter<any>();
   @Input() node: Node;
-  protected tooltipText = $localize`Add component`;
+  protected tooltipText = $localize`Add activity`;
 
   constructor(
     private createComponentService: CreateComponentService,
@@ -48,7 +48,7 @@ export class AddComponentButtonComponent {
   private updateUI(): void {
     this.firstComponent = this.node.getComponentPosition(this.insertAfterComponentId) === 0;
     if (this.node.components.length > 0 && !this.firstComponent) {
-      this.tooltipText = $localize`Add component after`;
+      this.tooltipText = $localize`Add activity after`;
     }
   }
 

diff --git a/src/assets/wise5/authoringTool/node/advanced/path/node-advanced-path-authoring.component.ts b/src/assets/wise5/authoringTool/node/advanced/path/node-advanced-path-authoring.component.ts
@@ -42,20 +42,20 @@ export class NodeAdvancedPathAuthoringComponent implements OnInit {
   protected transitionCriterias = [
     {
       value: 'score',
-      text: $localize`Get a specific score on a component`,
+      text: $localize`Get a specific score on an activity`,
       params: [
         { value: 'nodeId', text: $localize`Node ID` },
-        { value: 'componentId', text: $localize`Component ID` },
+        { value: 'componentId', text: $localize`Activity ID` },
         { value: 'scores', text: $localize`Scores(s)` },
         { value: 'scoreId', text: $localize`Score ID (Optional)` }
       ]
     },
     {
       value: 'choiceChosen',
-      text: $localize`Choose a specific choice on a component`,
+      text: $localize`Choose a specific choice on an activity`,
       params: [
         { value: 'nodeId', text: $localize`Node ID` },
-        { value: 'componentId', text: $localize`Component ID` },
+        { value: 'componentId', text: $localize`Activity ID` },
         { value: 'choiceIds', text: $localize`Choices` }
       ]
     },

diff --git a/...ssets/wise5/authoringTool/node/copy-component-button/copy-component-button.component.html b/...ssets/wise5/authoringTool/node/copy-component-button/copy-component-button.component.html
@@ -2,7 +2,7 @@
   mat-icon-button
   (click)="$event.stopPropagation(); copy()"
   (keydown)="$event.stopPropagation()"
-  matTooltip="Copy component"
+  matTooltip="Copy activity"
   matTooltipPosition="above"
   i18n-matTooltip
 >

diff --git a/src/assets/wise5/authoringTool/node/node-authoring/node-authoring.component.html b/src/assets/wise5/authoringTool/node/node-authoring/node-authoring.component.html
@@ -14,7 +14,7 @@
   </button>
 </div>
 @if (components.length === 0 && !isGroupNode) {
-  <p i18n>This step does not have any components.</p>
+  <p i18n>This step does not have any activities.</p>
   <add-component [node]="node" (newComponentsEvent)="highlightComponents($event)" />
 }
 <div
@@ -62,7 +62,7 @@
                 mat-icon-button
                 (click)="$event.stopPropagation(); deleteComponent($event, i + 1, component)"
                 (keydown)="$event.stopPropagation()"
-                matTooltip="Delete Component"
+                matTooltip="Delete activity"
                 matTooltipPosition="above"
                 i18n-matTooltip
               >

diff --git a/src/assets/wise5/authoringTool/node/node-authoring/node-authoring.component.spec.ts b/src/assets/wise5/authoringTool/node/node-authoring/node-authoring.component.spec.ts
@@ -138,7 +138,7 @@ function deleteComponent() {
       confirmSpy.and.returnValue(true);
       clickComponentDeleteButton(component2.id);
       expect(confirmSpy).toHaveBeenCalledWith(
-        `Are you sure you want to delete this component?\n\n2. MultipleChoice`
+        `Are you sure you want to delete this activity?\n\n2. MultipleChoice`
       );
       expect(saveProjectSpy).toHaveBeenCalled();
       expect(teacherProjectService.idToNode[nodeId1].components).toEqual([component1, component3]);

diff --git a/src/assets/wise5/authoringTool/node/node-authoring/node-authoring.component.ts b/src/assets/wise5/authoringTool/node/node-authoring/node-authoring.component.ts
@@ -163,7 +163,7 @@ export class NodeAuthoringComponent implements OnInit {
     event.stopPropagation();
     if (
       confirm(
-        $localize`Are you sure you want to delete this component?\n\n${componentNumber}. ${component.type}`
+        $localize`Are you sure you want to delete this activity?\n\n${componentNumber}. ${component.type}`
       )
     ) {
       this.deleteComponentsOnServer([this.node.deleteComponent(component.id)]);

diff --git a/...Tool/peer-grouping/select-peer-grouping-dialog/select-peer-grouping-dialog.component.html b/...Tool/peer-grouping/select-peer-grouping-dialog/select-peer-grouping-dialog.component.html
@@ -1,6 +1,6 @@
 <h2 mat-dialog-title i18n>Select Peer Grouping</h2>
 <mat-dialog-content class="dialog-content-scroll">
-  <p i18n>Choose a Peer Grouping to use for this component:</p>
+  <p i18n>Choose a Peer Grouping to use for this activity:</p>
   @if (peerGroupings.length === 0) {
     <p i18n>(There are no Peer Groupings. Please create a new one.)</p>
   }