diff --git a/client/src/app/core/services/collectionStringModelMapper.service.ts b/client/src/app/core/services/collectionStringModelMapper.service.ts
index 67c78922f..58dfa9e06 100644
--- a/client/src/app/core/services/collectionStringModelMapper.service.ts
+++ b/client/src/app/core/services/collectionStringModelMapper.service.ts
@@ -1,4 +1,4 @@
-import { ModelConstructor, BaseModel } from '../../shared/models/base.model';
+import { ModelConstructor, BaseModel } from '../../shared/models/base/base-model';
 
 /**
  * Registeres the mapping of collection strings <--> actual types. Every Model should register itself here.
diff --git a/client/src/app/core/services/data-send.service.ts b/client/src/app/core/services/data-send.service.ts
index 4321ec527..0b0d3c3f5 100644
--- a/client/src/app/core/services/data-send.service.ts
+++ b/client/src/app/core/services/data-send.service.ts
@@ -1,6 +1,6 @@
 import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
-import { BaseModel } from '../../shared/models/base.model';
+import { BaseModel } from '../../shared/models/base/base-model';
 import { Observable } from 'rxjs';
 import { tap } from 'rxjs/operators';
 
diff --git a/client/src/app/core/services/data-store.service.ts b/client/src/app/core/services/data-store.service.ts
index c5c67383d..063703330 100644
--- a/client/src/app/core/services/data-store.service.ts
+++ b/client/src/app/core/services/data-store.service.ts
@@ -1,7 +1,7 @@
 import { Injectable } from '@angular/core';
 import { Observable, Subject } from 'rxjs';
 
-import { BaseModel, ModelConstructor } from 'app/shared/models/base.model';
+import { BaseModel, ModelConstructor } from '../../shared/models/base/base-model';
 import { CacheService } from './cache.service';
 import { CollectionStringModelMapperService } from './collectionStringModelMapper.service';
 
diff --git a/client/src/app/shared/components/search-value-selector/search-value-selector.component.html b/client/src/app/shared/components/search-value-selector/search-value-selector.component.html
index 318af3f1b..cfedb9bfb 100644
--- a/client/src/app/shared/components/search-value-selector/search-value-selector.component.html
+++ b/client/src/app/shared/components/search-value-selector/search-value-selector.component.html
@@ -2,7 +2,7 @@
     <mat-select [formControl]="formControl" placeholder="{{listname}}" multiple="{{multiple}}" #thisSelector>
         <ngx-mat-select-search [formControl]="filterControl"></ngx-mat-select-search>
         <mat-option *ngFor="let selectedItem of filteredItems | async" [value]="selectedItem">
-            {{selectedItem.toString()}}
+            {{selectedItem.getTitle(translate)}}
         </mat-option>
     </mat-select>
 </mat-form-field>
diff --git a/client/src/app/shared/components/search-value-selector/search-value-selector.component.ts b/client/src/app/shared/components/search-value-selector/search-value-selector.component.ts
index b33d464f8..c7f24ab38 100644
--- a/client/src/app/shared/components/search-value-selector/search-value-selector.component.ts
+++ b/client/src/app/shared/components/search-value-selector/search-value-selector.component.ts
@@ -2,8 +2,9 @@ import { Component, OnInit, Input, ViewChild } from '@angular/core';
 import { FormControl, FormGroup } from '@angular/forms';
 import { ReplaySubject, Subject } from 'rxjs';
 import { MatSelect } from '@angular/material';
-import { SelectorItem } from './search-value-selector.interfaces';
 import { takeUntil } from 'rxjs/operators';
+import { Displayable } from '../../models/base/displayable';
+import { TranslateService } from '@ngx-translate/core';
 
 /**
  * Reusable Searchable Value Selector
@@ -27,17 +28,6 @@ import { takeUntil } from 'rxjs/operators';
  * </os-search-value-selector>
  * ```
  *
- * ### Declaration of a Selector provided as `[InputListValues]=myListValues`:
- *
- * Every Class that enherits of BaseModel implements the SelectorItem Interface and can
- * therefore be used directly in the Selector Component.
- *
- * ```ts
- * import { SelectorItem } from '../../shared/components/search-value-selector/search-value-selector.interfaces';
- *
- * const myListValues: SelectorItem[];
- * myListValues = this.DS.get(User);
- * ```
  */
 
 @Component({
@@ -60,7 +50,7 @@ export class SearchValueSelectorComponent implements OnInit {
     /**
      * List of the filtered content, when entering somithing in the search bar
      */
-    public filteredItems: ReplaySubject<SelectorItem[]> = new ReplaySubject<SelectorItem[]>(1);
+    public filteredItems: ReplaySubject<Displayable[]> = new ReplaySubject<Displayable[]>(1);
 
     /**
      * Decide if this should be a single or multi-select-field
@@ -72,7 +62,7 @@ export class SearchValueSelectorComponent implements OnInit {
      * The Input List Values
      */
     @Input()
-    public InputListValues: SelectorItem[];
+    public InputListValues: Displayable[];
 
     /**
      * Placeholder of the List
@@ -115,7 +105,7 @@ export class SearchValueSelectorComponent implements OnInit {
     /**
      * Empty constructor
      */
-    public constructor() {}
+    public constructor(public translate: TranslateService) {}
 
     /**
      * onInit with filter ans subscription on filter
@@ -164,7 +154,7 @@ export class SearchValueSelectorComponent implements OnInit {
      * places, but can't reflect the changes in both places. Until this can be done this will be unused code
      * @param item the selected item to be removed
      */
-    public remove(item: SelectorItem): void {
+    public remove(item: Displayable): void {
         const myArr = this.thisSelector.value;
         const index = myArr.indexOf(item, 0);
         // my model was the form according to fix
diff --git a/client/src/app/shared/components/search-value-selector/search-value-selector.interfaces.ts b/client/src/app/shared/components/search-value-selector/search-value-selector.interfaces.ts
deleted file mode 100644
index f60236209..000000000
--- a/client/src/app/shared/components/search-value-selector/search-value-selector.interfaces.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Inteface for the Multi-Value-Selector Component to display and use
- * the given values.
- */
-export interface SelectorItem {
-    /**
-     * translates the displayable part of the function to a String
-     */
-    toString(): string;
-}
diff --git a/client/src/app/shared/models/agenda/item.ts b/client/src/app/shared/models/agenda/item.ts
index 6c7931ae0..46faac9ad 100644
--- a/client/src/app/shared/models/agenda/item.ts
+++ b/client/src/app/shared/models/agenda/item.ts
@@ -1,6 +1,10 @@
-import { BaseModel } from '../base.model';
+import { ProjectableBaseModel } from '../base/projectable-base-model';
 import { Speaker } from './speaker';
 
+/**
+ * The representation of the content object for agenda items. The unique combination
+ * of the collection and id is given.
+ */
 interface ContentObject {
     id: number;
     collection: string;
@@ -10,11 +14,11 @@ interface ContentObject {
  * Representations of agenda Item
  * @ignore
  */
-export class Item extends BaseModel {
+export class Item extends ProjectableBaseModel {
     public id: number;
     public item_number: string;
     public title: string;
-    public list_view_title: string;
+    public title_with_type: string;
     public comment: string;
     public closed: boolean;
     public type: number;
@@ -30,6 +34,23 @@ export class Item extends BaseModel {
         super('agenda/item', input);
     }
 
+    // Note: This has to be used in the agenda repository
+    /*public get contentObject(): AgendaBaseModel {
+        const contentObject = this.DS.get<BaseModel>(this.content_object.collection, this.content_object.id);
+        if (!contentObject) {
+            return null;
+        }
+        if (contentObject instanceof AgendaBaseModel) {
+            return contentObject as AgendaBaseModel;
+        } else {
+            throw new Error(
+                `The content object (${this.content_object.collection}, ${this.content_object.id}) of item ${
+                    this.id
+                } is not a BaseProjectableModel.`
+            );
+        }
+    }*/
+
     public deserialize(input: any): void {
         Object.assign(this, input);
 
@@ -40,9 +61,32 @@ export class Item extends BaseModel {
         }
     }
 
-    public toString(): string {
+    // The repository has to check for the content object and choose which title to use.
+    // The code below is belongs to the repository
+    public getTitle(): string {
+        /*const contentObject: AgendaBaseModel = this.contentObject;
+        if (contentObject) {
+            return contentObject.getAgendaTitle();
+        } else {
+            return this.title;
+        }*/
         return this.title;
     }
+
+    // Same here. See comment for getTitle()
+    public getListTitle(): string {
+        /*const contentObject: AgendaBaseModel = this.contentObject;
+        if (contentObject) {
+            return contentObject.getAgendaTitleWithType();
+        } else {
+            return this.title_with_type;
+        }*/
+        return this.title_with_type;
+    }
+
+    public getProjectorTitle(): string {
+        return this.getListTitle();
+    }
 }
 
-BaseModel.registerCollectionElement('agenda/item', Item);
+ProjectableBaseModel.registerCollectionElement('agenda/item', Item);
diff --git a/client/src/app/shared/models/agenda/speaker.ts b/client/src/app/shared/models/agenda/speaker.ts
index c1e53d0a8..0348a3e1d 100644
--- a/client/src/app/shared/models/agenda/speaker.ts
+++ b/client/src/app/shared/models/agenda/speaker.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * Representation of a speaker in an agenda item
diff --git a/client/src/app/shared/models/assignments/assignment-user.ts b/client/src/app/shared/models/assignments/assignment-user.ts
index 092f86c32..f2904552a 100644
--- a/client/src/app/shared/models/assignments/assignment-user.ts
+++ b/client/src/app/shared/models/assignments/assignment-user.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * Content of the 'assignment_related_users' property
diff --git a/client/src/app/shared/models/assignments/assignment.ts b/client/src/app/shared/models/assignments/assignment.ts
index aa9260d5a..fd86b28da 100644
--- a/client/src/app/shared/models/assignments/assignment.ts
+++ b/client/src/app/shared/models/assignments/assignment.ts
@@ -1,12 +1,12 @@
-import { BaseModel } from '../base.model';
 import { AssignmentUser } from './assignment-user';
 import { Poll } from './poll';
+import { AgendaBaseModel } from '../base/agenda-base-model';
 
 /**
  * Representation of an assignment.
  * @ignore
  */
-export class Assignment extends BaseModel {
+export class Assignment extends AgendaBaseModel {
     public id: number;
     public title: string;
     public description: string;
@@ -19,7 +19,7 @@ export class Assignment extends BaseModel {
     public tags_id: number[];
 
     public constructor(input?: any) {
-        super('assignments/assignment', input);
+        super('assignments/assignment', 'Assignment', input);
     }
 
     public get candidateIds(): number[] {
@@ -48,9 +48,13 @@ export class Assignment extends BaseModel {
         }
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.title;
     }
+
+    public getDetailStateURL(): string {
+        return 'TODO';
+    }
 }
 
-BaseModel.registerCollectionElement('assignments/assignment', Assignment);
+AgendaBaseModel.registerCollectionElement('assignments/assignment', Assignment);
diff --git a/client/src/app/shared/models/assignments/poll-option.ts b/client/src/app/shared/models/assignments/poll-option.ts
index 5329f73ad..ddbc21cf7 100644
--- a/client/src/app/shared/models/assignments/poll-option.ts
+++ b/client/src/app/shared/models/assignments/poll-option.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * Representation of a poll option
diff --git a/client/src/app/shared/models/assignments/poll.ts b/client/src/app/shared/models/assignments/poll.ts
index 1375cd4a3..9ec0ab57b 100644
--- a/client/src/app/shared/models/assignments/poll.ts
+++ b/client/src/app/shared/models/assignments/poll.ts
@@ -1,5 +1,5 @@
 import { PollOption } from './poll-option';
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * Content of the 'polls' property of assignments
diff --git a/client/src/app/shared/models/base/agenda-base-model.ts b/client/src/app/shared/models/base/agenda-base-model.ts
new file mode 100644
index 000000000..755a7bfa7
--- /dev/null
+++ b/client/src/app/shared/models/base/agenda-base-model.ts
@@ -0,0 +1,37 @@
+import { AgendaInformation } from './agenda-information';
+import { ProjectableBaseModel } from './projectable-base-model';
+
+/**
+ * A base model for models, that can be content objects in the agenda. Provides title and navigation
+ * information for the agenda.
+ */
+export abstract class AgendaBaseModel extends ProjectableBaseModel implements AgendaInformation {
+    protected verboseName: string;
+
+    /**
+     * A Model that inherits from this class should provide a verbose name. It's used by creating
+     * the agenda title with type.
+     * @param collectionString
+     * @param verboseName
+     * @param input
+     */
+    protected constructor(collectionString: string, verboseName: string, input?: any) {
+        super(collectionString, input);
+        this.verboseName = verboseName;
+    }
+
+    public getAgendaTitle(): string {
+        return this.getTitle();
+    }
+
+    public getAgendaTitleWithType(): string {
+        // Return the agenda title with the model's verbose name appended
+        return this.getAgendaTitle() + ' (' + this.verboseName + ')';
+    }
+
+    /**
+     * Should return the URL to the detail view. Used for the agenda, that the
+     * user can navigate to the content object.
+     */
+    public abstract getDetailStateURL(): string;
+}
diff --git a/client/src/app/shared/models/base/agenda-information.ts b/client/src/app/shared/models/base/agenda-information.ts
new file mode 100644
index 000000000..832f1bd45
--- /dev/null
+++ b/client/src/app/shared/models/base/agenda-information.ts
@@ -0,0 +1,19 @@
+/**
+ * An Interface for all extra information needed for content objects of items.
+ */
+export interface AgendaInformation {
+    /**
+     * Should return the title for the agenda list view.
+     */
+    getAgendaTitle(): string;
+
+    /**
+     * Should return the title for the list of speakers view.
+     */
+    getAgendaTitleWithType(): string;
+
+    /**
+     * Get the url for the detail view, so in the agenda the user can navigate to it.
+     */
+    getDetailStateURL(): string;
+}
diff --git a/client/src/app/shared/models/base.model.ts b/client/src/app/shared/models/base/base-model.ts
similarity index 82%
rename from client/src/app/shared/models/base.model.ts
rename to client/src/app/shared/models/base/base-model.ts
index a2372807d..ddc7fab76 100644
--- a/client/src/app/shared/models/base.model.ts
+++ b/client/src/app/shared/models/base/base-model.ts
@@ -1,7 +1,7 @@
 import { OpenSlidesComponent } from 'app/openslides.component';
-import { Deserializable } from './deserializable.model';
-import { CollectionStringModelMapperService } from '../../core/services/collectionStringModelMapper.service';
-import { SelectorItem } from '../components/search-value-selector/search-value-selector.interfaces';
+import { Deserializable } from './deserializable';
+import { CollectionStringModelMapperService } from '../../../core/services/collectionStringModelMapper.service';
+import { Displayable } from './displayable';
 
 export interface ModelConstructor<T extends BaseModel> {
     new (...args: any[]): T;
@@ -10,7 +10,7 @@ export interface ModelConstructor<T extends BaseModel> {
 /**
  * Abstract parent class to set rules and functions for all models.
  */
-export abstract class BaseModel extends OpenSlidesComponent implements Deserializable, SelectorItem {
+export abstract class BaseModel extends OpenSlidesComponent implements Deserializable, Displayable {
     /**
      * Register the collection string to the type.
      * @param collectionString
@@ -56,10 +56,16 @@ export abstract class BaseModel extends OpenSlidesComponent implements Deseriali
             }
         });
     }
-    /**
-     * force children to have a toString() method
-     */
-    public abstract toString(): string;
+
+    public abstract getTitle(): string;
+
+    public getListTitle(): string {
+        return this.getTitle();
+    }
+
+    public toString(): string {
+        return this.getTitle();
+    }
 
     /**
      * returns the collectionString.
diff --git a/client/src/app/shared/models/deserializable.model.ts b/client/src/app/shared/models/base/deserializable.ts
similarity index 100%
rename from client/src/app/shared/models/deserializable.model.ts
rename to client/src/app/shared/models/base/deserializable.ts
diff --git a/client/src/app/shared/models/deserializer.model.ts b/client/src/app/shared/models/base/deserializer.ts
similarity index 95%
rename from client/src/app/shared/models/deserializer.model.ts
rename to client/src/app/shared/models/base/deserializer.ts
index 33d50ef2a..a21b40373 100644
--- a/client/src/app/shared/models/deserializer.model.ts
+++ b/client/src/app/shared/models/base/deserializer.ts
@@ -1,4 +1,4 @@
-import { Deserializable } from './deserializable.model';
+import { Deserializable } from './deserializable';
 
 /**
  * Abstract base class for a basic implementation of Deserializable.
diff --git a/client/src/app/shared/models/base/displayable.ts b/client/src/app/shared/models/base/displayable.ts
new file mode 100644
index 000000000..9be35f9f4
--- /dev/null
+++ b/client/src/app/shared/models/base/displayable.ts
@@ -0,0 +1,14 @@
+/**
+ * Every displayble object should have the given functions to give the object's title.
+ */
+export interface Displayable {
+    /**
+     * Should return the title. Alway used except for list view, the agenda and in the projector.
+     */
+    getTitle(): string;
+
+    /**
+     * Should return the title for the list view.
+     */
+    getListTitle(): string;
+}
diff --git a/client/src/app/shared/models/base/projectable-base-model.ts b/client/src/app/shared/models/base/projectable-base-model.ts
new file mode 100644
index 000000000..fc10e11d3
--- /dev/null
+++ b/client/src/app/shared/models/base/projectable-base-model.ts
@@ -0,0 +1,17 @@
+import { BaseModel } from './base-model';
+import { Projectable } from './projectable';
+
+export abstract class ProjectableBaseModel extends BaseModel implements Projectable {
+    protected constructor(collectionString: string, input?: any) {
+        super(collectionString, input);
+    }
+
+    /**
+     * This is a Dummy, which should be changed if the projector gets implemented.
+     */
+    public project(): void {}
+
+    public getProjectorTitle(): string {
+        return this.getTitle();
+    }
+}
diff --git a/client/src/app/shared/models/base/projectable.ts b/client/src/app/shared/models/base/projectable.ts
new file mode 100644
index 000000000..d2f002f76
--- /dev/null
+++ b/client/src/app/shared/models/base/projectable.ts
@@ -0,0 +1,14 @@
+/**
+ * Interface for every model, that should be projectable.
+ */
+export interface Projectable {
+    /**
+     * Should return the title for the projector.
+     */
+    getProjectorTitle(): string;
+
+    /**
+     * Dummy. I don't know how the projctor system will be, so this function may change
+     */
+    project(): void;
+}
diff --git a/client/src/app/shared/models/core/chat-message.ts b/client/src/app/shared/models/core/chat-message.ts
index d254692f3..146186195 100644
--- a/client/src/app/shared/models/core/chat-message.ts
+++ b/client/src/app/shared/models/core/chat-message.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of chat messages.
@@ -14,8 +14,8 @@ export class ChatMessage extends BaseModel {
         super('core/chat-message', input);
     }
 
-    public toString(): string {
-        return this.message;
+    public getTitle(): string {
+        return 'Chatmessage';
     }
 }
 
diff --git a/client/src/app/shared/models/core/config.ts b/client/src/app/shared/models/core/config.ts
index 51e174ca3..2899902b6 100644
--- a/client/src/app/shared/models/core/config.ts
+++ b/client/src/app/shared/models/core/config.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of a config variable
@@ -13,7 +13,7 @@ export class Config extends BaseModel {
         super('core/config', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.key;
     }
 }
diff --git a/client/src/app/shared/models/core/countdown.ts b/client/src/app/shared/models/core/countdown.ts
index 8aafcd3f4..06245258e 100644
--- a/client/src/app/shared/models/core/countdown.ts
+++ b/client/src/app/shared/models/core/countdown.ts
@@ -1,10 +1,10 @@
-import { BaseModel } from '../base.model';
+import { ProjectableBaseModel } from '../base/projectable-base-model';
 
 /**
  * Representation of a countdown
  * @ignore
  */
-export class Countdown extends BaseModel {
+export class Countdown extends ProjectableBaseModel {
     public id: number;
     public description: string;
     public default_time: number;
@@ -15,9 +15,9 @@ export class Countdown extends BaseModel {
         super('core/countdown');
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.description;
     }
 }
 
-BaseModel.registerCollectionElement('core/countdown', Countdown);
+ProjectableBaseModel.registerCollectionElement('core/countdown', Countdown);
diff --git a/client/src/app/shared/models/core/projector-message.ts b/client/src/app/shared/models/core/projector-message.ts
index b5b59db7b..a49dcf79e 100644
--- a/client/src/app/shared/models/core/projector-message.ts
+++ b/client/src/app/shared/models/core/projector-message.ts
@@ -1,10 +1,10 @@
-import { BaseModel } from '../base.model';
+import { ProjectableBaseModel } from '../base/projectable-base-model';
 
 /**
  * Representation of a projector message.
  * @ignore
  */
-export class ProjectorMessage extends BaseModel {
+export class ProjectorMessage extends ProjectableBaseModel {
     public id: number;
     public message: string;
 
@@ -12,9 +12,9 @@ export class ProjectorMessage extends BaseModel {
         super('core/projector-message', input);
     }
 
-    public toString(): string {
-        return this.message;
+    public getTitle(): string {
+        return 'Projectormessage';
     }
 }
 
-BaseModel.registerCollectionElement('core/projector-message', ProjectorMessage);
+ProjectableBaseModel.registerCollectionElement('core/projector-message', ProjectorMessage);
diff --git a/client/src/app/shared/models/core/projector.ts b/client/src/app/shared/models/core/projector.ts
index 7af72f9f0..d2b692469 100644
--- a/client/src/app/shared/models/core/projector.ts
+++ b/client/src/app/shared/models/core/projector.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of a projector. Has the nested property "projectiondefaults"
@@ -19,7 +19,7 @@ export class Projector extends BaseModel {
         super('core/projector', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.name;
     }
 }
diff --git a/client/src/app/shared/models/core/tag.ts b/client/src/app/shared/models/core/tag.ts
index 7447b06f8..44e0fd75a 100644
--- a/client/src/app/shared/models/core/tag.ts
+++ b/client/src/app/shared/models/core/tag.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of a tag.
@@ -12,7 +12,7 @@ export class Tag extends BaseModel {
         super('core/tag', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.name;
     }
 }
diff --git a/client/src/app/shared/models/mediafiles/file.ts b/client/src/app/shared/models/mediafiles/file.ts
index 8ac48c45d..e9a7f812b 100644
--- a/client/src/app/shared/models/mediafiles/file.ts
+++ b/client/src/app/shared/models/mediafiles/file.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * The name and the type of a mediaFile.
diff --git a/client/src/app/shared/models/mediafiles/mediafile.ts b/client/src/app/shared/models/mediafiles/mediafile.ts
index bb5b63145..dfe9c941f 100644
--- a/client/src/app/shared/models/mediafiles/mediafile.ts
+++ b/client/src/app/shared/models/mediafiles/mediafile.ts
@@ -1,11 +1,11 @@
-import { BaseModel } from '../base.model';
 import { File } from './file';
+import { ProjectableBaseModel } from '../base/projectable-base-model';
 
 /**
  * Representation of MediaFile. Has the nested property "File"
  * @ignore
  */
-export class Mediafile extends BaseModel {
+export class Mediafile extends ProjectableBaseModel {
     public id: number;
     public title: string;
     public mediafile: File;
@@ -24,9 +24,9 @@ export class Mediafile extends BaseModel {
         this.mediafile = new File(input.mediafile);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.title;
     }
 }
 
-BaseModel.registerCollectionElement('amediafiles/mediafile', Mediafile);
+ProjectableBaseModel.registerCollectionElement('amediafiles/mediafile', Mediafile);
diff --git a/client/src/app/shared/models/motions/category.ts b/client/src/app/shared/models/motions/category.ts
index ed7243086..d772a8925 100644
--- a/client/src/app/shared/models/motions/category.ts
+++ b/client/src/app/shared/models/motions/category.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of a motion category. Has the nested property "File"
@@ -13,7 +13,7 @@ export class Category extends BaseModel {
         super('motions/category', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.prefix + ' - ' + this.name;
     }
 }
diff --git a/client/src/app/shared/models/motions/motion-block.ts b/client/src/app/shared/models/motions/motion-block.ts
index dc11f8606..da2eb781f 100644
--- a/client/src/app/shared/models/motions/motion-block.ts
+++ b/client/src/app/shared/models/motions/motion-block.ts
@@ -1,22 +1,25 @@
-import { BaseModel } from '../base.model';
-import { Item } from '../agenda/item';
+import { AgendaBaseModel } from '../base/agenda-base-model';
 
 /**
  * Representation of a motion block.
  * @ignore
  */
-export class MotionBlock extends BaseModel {
+export class MotionBlock extends AgendaBaseModel {
     public id: number;
     public title: string;
     public agenda_item_id: number;
 
     public constructor(input?: any) {
-        super('motions/motion-block', input);
+        super('motions/motion-block', 'Motion block', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.title;
     }
+
+    public getDetailStateURL(): string {
+        return 'TODO';
+    }
 }
 
-BaseModel.registerCollectionElement('motions/motion-block', MotionBlock);
+AgendaBaseModel.registerCollectionElement('motions/motion-block', MotionBlock);
diff --git a/client/src/app/shared/models/motions/motion-change-reco.ts b/client/src/app/shared/models/motions/motion-change-reco.ts
index a46e05996..a562f7b36 100644
--- a/client/src/app/shared/models/motions/motion-change-reco.ts
+++ b/client/src/app/shared/models/motions/motion-change-reco.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of a motion change recommendation.
@@ -19,8 +19,8 @@ export class MotionChangeReco extends BaseModel {
         super('motions/motion-change-recommendation', input);
     }
 
-    public toString(): string {
-        return this.text;
+    public getTitle(): string {
+        return 'Changerecommendation';
     }
 }
 
diff --git a/client/src/app/shared/models/motions/motion-comment-section.ts b/client/src/app/shared/models/motions/motion-comment-section.ts
index 81e178e7c..24fff9c02 100644
--- a/client/src/app/shared/models/motions/motion-comment-section.ts
+++ b/client/src/app/shared/models/motions/motion-comment-section.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of a motion category. Has the nested property "File"
@@ -14,7 +14,7 @@ export class MotionCommentSection extends BaseModel {
         super('motions/motion-comment-section', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.name;
     }
 }
diff --git a/client/src/app/shared/models/motions/motion-comment.ts b/client/src/app/shared/models/motions/motion-comment.ts
index 78447574b..69c1379ee 100644
--- a/client/src/app/shared/models/motions/motion-comment.ts
+++ b/client/src/app/shared/models/motions/motion-comment.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * Representation of a Motion Comment.
diff --git a/client/src/app/shared/models/motions/motion-log.ts b/client/src/app/shared/models/motions/motion-log.ts
index 952f00cec..1dc1fd15d 100644
--- a/client/src/app/shared/models/motions/motion-log.ts
+++ b/client/src/app/shared/models/motions/motion-log.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 
 /**
  * Representation of a Motion Log.
diff --git a/client/src/app/shared/models/motions/motion-submitter.ts b/client/src/app/shared/models/motions/motion-submitter.ts
index 50422eec9..d5bb9e8ac 100644
--- a/client/src/app/shared/models/motions/motion-submitter.ts
+++ b/client/src/app/shared/models/motions/motion-submitter.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 import { User } from '../users/user';
 
 /**
diff --git a/client/src/app/shared/models/motions/motion.ts b/client/src/app/shared/models/motions/motion.ts
index 99f3b5e5e..9779caa2a 100644
--- a/client/src/app/shared/models/motions/motion.ts
+++ b/client/src/app/shared/models/motions/motion.ts
@@ -1,9 +1,9 @@
-import { BaseModel } from '../base.model';
 import { MotionSubmitter } from './motion-submitter';
 import { MotionLog } from './motion-log';
 import { Category } from './category';
 import { MotionComment } from './motion-comment';
 import { Workflow } from './workflow';
+import { AgendaBaseModel } from '../base/agenda-base-model';
 
 /**
  * Representation of Motion.
@@ -12,7 +12,7 @@ import { Workflow } from './workflow';
  *
  * @ignore
  */
-export class Motion extends BaseModel {
+export class Motion extends AgendaBaseModel {
     public id: number;
     public identifier: string;
     public title: string;
@@ -36,12 +36,12 @@ export class Motion extends BaseModel {
     public recommendation_extension: string;
     public tags_id: number[];
     public attachments_id: number[];
-    public polls: BaseModel[];
+    public polls: Object[];
     public agenda_item_id: number;
     public log_messages: MotionLog[];
 
     public constructor(input?: any) {
-        super('motions/motion', input);
+        super('motions/motion', 'Motion', input);
     }
 
     /**
@@ -62,13 +62,32 @@ export class Motion extends BaseModel {
             .map((submitter: MotionSubmitter) => submitter.user_id);
     }
 
-    /**
-     * returns the Motion name
-     */
-    public toString(): string {
+    public getTitle(): string {
         return this.title;
     }
 
+    public getAgendaTitle(): string {
+        // if the identifier is set, the title will be 'Motion <identifier>'.
+        if (this.identifier) {
+            return 'Motion ' + this.identifier;
+        } else {
+            return this.getTitle();
+        }
+    }
+
+    public getAgendaTitleWithType(): string {
+        // Append the verbose name only, if not the special format 'Motion <identifier>' is used.
+        if (this.identifier) {
+            return 'Motion ' + this.identifier;
+        } else {
+            return this.getTitle() + ' (' + this.verboseName + ')';
+        }
+    }
+
+    public getDetailStateURL(): string {
+        return 'TODO';
+    }
+
     public deserialize(input: any): void {
         Object.assign(this, input);
 
@@ -91,6 +110,6 @@ export class Motion extends BaseModel {
 /**
  * Hack to get them loaded at last
  */
-BaseModel.registerCollectionElement('motions/motion', Motion);
-BaseModel.registerCollectionElement('motions/category', Category);
-BaseModel.registerCollectionElement('motions/workflow', Workflow);
+AgendaBaseModel.registerCollectionElement('motions/motion', Motion);
+AgendaBaseModel.registerCollectionElement('motions/category', Category);
+AgendaBaseModel.registerCollectionElement('motions/workflow', Workflow);
diff --git a/client/src/app/shared/models/motions/workflow-state.ts b/client/src/app/shared/models/motions/workflow-state.ts
index 99bf6f27d..75e9c5d13 100644
--- a/client/src/app/shared/models/motions/workflow-state.ts
+++ b/client/src/app/shared/models/motions/workflow-state.ts
@@ -1,4 +1,4 @@
-import { Deserializer } from '../deserializer.model';
+import { Deserializer } from '../base/deserializer';
 import { Workflow } from './workflow';
 
 /**
diff --git a/client/src/app/shared/models/motions/workflow.ts b/client/src/app/shared/models/motions/workflow.ts
index ba54d6193..8e8f30ac7 100644
--- a/client/src/app/shared/models/motions/workflow.ts
+++ b/client/src/app/shared/models/motions/workflow.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 import { WorkflowState } from './workflow-state';
 
 /**
@@ -54,7 +54,7 @@ export class Workflow extends BaseModel {
         }
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.name;
     }
 }
diff --git a/client/src/app/shared/models/topics/topic.ts b/client/src/app/shared/models/topics/topic.ts
index 71b1671d0..96a228a3a 100644
--- a/client/src/app/shared/models/topics/topic.ts
+++ b/client/src/app/shared/models/topics/topic.ts
@@ -1,10 +1,10 @@
-import { BaseModel } from '../base.model';
+import { AgendaBaseModel } from '../base/agenda-base-model';
 
 /**
  * Representation of a topic.
  * @ignore
  */
-export class Topic extends BaseModel {
+export class Topic extends AgendaBaseModel {
     public id: number;
     public title: string;
     public text: string;
@@ -12,12 +12,21 @@ export class Topic extends BaseModel {
     public agenda_item_id: number;
 
     public constructor(input?: any) {
-        super('topics/topic', input);
+        super('topics/topic', 'Topic', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.title;
     }
+
+    public getAgendaTitleWithType(): string {
+        // Do not append ' (Topic)' to the title.
+        return this.getAgendaTitle();
+    }
+
+    public getDetailStateURL(): string {
+        return 'TODO';
+    }
 }
 
-BaseModel.registerCollectionElement('topics/topic', Topic);
+AgendaBaseModel.registerCollectionElement('topics/topic', Topic);
diff --git a/client/src/app/shared/models/users/group.ts b/client/src/app/shared/models/users/group.ts
index fed9c4df4..4b52724d6 100644
--- a/client/src/app/shared/models/users/group.ts
+++ b/client/src/app/shared/models/users/group.ts
@@ -1,4 +1,4 @@
-import { BaseModel } from '../base.model';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of user group.
@@ -13,7 +13,7 @@ export class Group extends BaseModel {
         super('users/group', input);
     }
 
-    public toString(): string {
+    public getTitle(): string {
         return this.name;
     }
 }
diff --git a/client/src/app/shared/models/users/personal-note.ts b/client/src/app/shared/models/users/personal-note.ts
index 48510110c..a9a0bd434 100644
--- a/client/src/app/shared/models/users/personal-note.ts
+++ b/client/src/app/shared/models/users/personal-note.ts
@@ -1,5 +1,4 @@
-import { BaseModel } from '../base.model';
-import { User } from './user';
+import { BaseModel } from '../base/base-model';
 
 /**
  * Representation of users personal note.
@@ -14,8 +13,8 @@ export class PersonalNote extends BaseModel {
         super('users/personal-note', input);
     }
 
-    public toString(): string {
-        return this.notes.toString();
+    public getTitle(): string {
+        return 'Personal note';
     }
 }
 
diff --git a/client/src/app/shared/models/users/user.ts b/client/src/app/shared/models/users/user.ts
index b6fd2c3e3..c49b7ae7f 100644
--- a/client/src/app/shared/models/users/user.ts
+++ b/client/src/app/shared/models/users/user.ts
@@ -1,10 +1,10 @@
-import { BaseModel } from '../base.model';
+import { ProjectableBaseModel } from '../base/projectable-base-model';
 
 /**
  * Representation of a user in contrast to the operator.
  * @ignore
  */
-export class User extends BaseModel {
+export class User extends ProjectableBaseModel {
     public id: number;
     public username: string;
     public title: string;
@@ -77,9 +77,13 @@ export class User extends BaseModel {
         return shortName.trim();
     }
 
-    public toString(): string {
+    public getTitle(): string {
+        return this.full_name;
+    }
+
+    public getListViewTitle(): string {
         return this.short_name;
     }
 }
 
-BaseModel.registerCollectionElement('users/user', User);
+ProjectableBaseModel.registerCollectionElement('users/user', User);
diff --git a/client/src/app/site/base-repository.ts b/client/src/app/site/base-repository.ts
index 75f15ef90..25d0d2998 100644
--- a/client/src/app/site/base-repository.ts
+++ b/client/src/app/site/base-repository.ts
@@ -1,7 +1,7 @@
 import { OpenSlidesComponent } from '../openslides.component';
 import { BehaviorSubject, Observable } from 'rxjs';
 import { BaseViewModel } from './base-view-model';
-import { BaseModel, ModelConstructor } from '../shared/models/base.model';
+import { BaseModel, ModelConstructor } from '../shared/models/base/base-model';
 import { CollectionStringModelMapperService } from '../core/services/collectionStringModelMapper.service';
 import { DataStoreService } from '../core/services/data-store.service';
 
diff --git a/client/src/app/site/base-view-model.ts b/client/src/app/site/base-view-model.ts
index 5f1749184..7e71b7662 100644
--- a/client/src/app/site/base-view-model.ts
+++ b/client/src/app/site/base-view-model.ts
@@ -1,39 +1,19 @@
-import { TranslateService } from '@ngx-translate/core';
-import { BaseModel } from '../shared/models/base.model';
+import { BaseModel } from '../shared/models/base/base-model';
+import { Displayable } from '../shared/models/base/displayable';
 
 /**
  * Base class for view models. alls view models should have titles.
  */
-export abstract class BaseViewModel {
+export abstract class BaseViewModel implements Displayable {
     public abstract updateValues(update: BaseModel): void;
 
-    /**
-     * Should return the title for the detail view.
-     * @param translate
-     */
-    public abstract getTitle(translate: TranslateService): string;
+    public abstract getTitle(): string;
 
-    /**
-     * Should return the title for the list view.
-     * @param translate
-     */
-    public getListTitle(translate: TranslateService): string {
-        return this.getTitle(translate);
+    public getListTitle(): string {
+        return this.getTitle();
     }
 
-    /**
-     * Should return the title for the projector.
-     * @param translate
-     */
-    public getProjector(translate: TranslateService): string {
-        return this.getTitle(translate);
-    }
-
-    /**
-     * Should return the title for the agenda list view.
-     * @param translate
-     */
-    public getAgendaTitle(translate: TranslateService): string {
-        return this.getTitle(translate);
+    public toString(): string {
+        return this.getTitle();
     }
 }
diff --git a/client/src/app/site/motions/components/motion-detail/motion-detail.component.html b/client/src/app/site/motions/components/motion-detail/motion-detail.component.html
index fe3978d7a..d445f640b 100644
--- a/client/src/app/site/motions/components/motion-detail/motion-detail.component.html
+++ b/client/src/app/site/motions/components/motion-detail/motion-detail.component.html
@@ -153,8 +153,8 @@
             </div>
             <div *ngIf="!editMotion || !newMotion">
                 <h3 translate>Submitters</h3>
-                <ul *ngFor="let submitters of motion.submitters">
-                    <li>{{submitters}}</li>
+                <ul *ngFor="let submitter of motion.submitters">
+                    <li>{{submitter.full_name}}</li>
                 </ul>
             </div>
         </div>
@@ -169,8 +169,8 @@
             </div>
             <div *ngIf="!editMotion && motion.hasSupporters()">
                 <h3 translate>Supporters</h3>
-                <ul *ngFor="let supporters of motion.supporters">
-                    <li>{{supporters}}</li>
+                <ul *ngFor="let supporter of motion.supporters">
+                    <li>{{supporter.full_name}}</li>
                 </ul>
             </div>
         </div>
diff --git a/client/src/app/site/motions/models/view-motion.ts b/client/src/app/site/motions/models/view-motion.ts
index 0149b4f55..66671ea25 100644
--- a/client/src/app/site/motions/models/view-motion.ts
+++ b/client/src/app/site/motions/models/view-motion.ts
@@ -3,7 +3,7 @@ import { Category } from '../../../shared/models/motions/category';
 import { User } from '../../../shared/models/users/user';
 import { Workflow } from '../../../shared/models/motions/workflow';
 import { WorkflowState } from '../../../shared/models/motions/workflow-state';
-import { BaseModel } from '../../../shared/models/base.model';
+import { BaseModel } from '../../../shared/models/base/base-model';
 import { BaseViewModel } from '../../base-view-model';
 import { TranslateService } from '@ngx-translate/core';
 
diff --git a/openslides/agenda/models.py b/openslides/agenda/models.py
index a6d5a161d..45ecae422 100644
--- a/openslides/agenda/models.py
+++ b/openslides/agenda/models.py
@@ -296,14 +296,14 @@ class Item(RESTModelMixin, models.Model):
                                       'method on your related model.')
 
     @property
-    def list_view_title(self):
+    def title_with_type(self):
         """
-        Return get_agenda_list_view_title() from the content_object.
+        Return get_agenda_title_with_type() from the content_object.
         """
         try:
-            return self.content_object.get_agenda_list_view_title()
+            return self.content_object.get_agenda_title_with_type()
         except AttributeError:
-            raise NotImplementedError('You have to provide a get_agenda_list_view_title '
+            raise NotImplementedError('You have to provide a get_agenda_title_with_type '
                                       'method on your related model.')
 
     def is_internal(self):
diff --git a/openslides/agenda/serializers.py b/openslides/agenda/serializers.py
index 13dfebc63..edcb49ea1 100644
--- a/openslides/agenda/serializers.py
+++ b/openslides/agenda/serializers.py
@@ -45,7 +45,7 @@ class ItemSerializer(ModelSerializer):
             'id',
             'item_number',
             'title',
-            'list_view_title',
+            'title_with_type',
             'comment',
             'closed',
             'type',
diff --git a/openslides/assignments/models.py b/openslides/assignments/models.py
index aa387e25b..b970f8e56 100644
--- a/openslides/assignments/models.py
+++ b/openslides/assignments/models.py
@@ -338,16 +338,17 @@ class Assignment(RESTModelMixin, models.Model):
     agenda_item_update_information: Dict[str, Any] = {}
 
     def get_agenda_title(self):
+        """
+        Returns the title for the agenda.
+        """
         return str(self)
 
-    def get_agenda_list_view_title(self):
+    def get_agenda_title_with_type(self):
         """
-        Return a title string for the agenda list view.
-
-        Contains agenda item number, title and assignment verbose name.
+        Return a title for the agenda with the appended assignment verbose name.
         Note: It has to be the same return value like in JavaScript.
         """
-        return '%s (%s)' % (self.title, _(self._meta.verbose_name))
+        return '%s (%s)' % (self.get_agenda_title(), _(self._meta.verbose_name))
 
     @property
     def agenda_item(self):
diff --git a/openslides/motions/models.py b/openslides/motions/models.py
index 0223d624d..c38392080 100644
--- a/openslides/motions/models.py
+++ b/openslides/motions/models.py
@@ -436,26 +436,30 @@ class Motion(RESTModelMixin, models.Model):
 
     def get_agenda_title(self):
         """
-        Return a simple title string for the agenda.
+        Return the title string for the agenda.
 
-        Returns only the motion title so that you have only agenda item number
-        and title in the agenda.
-        """
-        return str(self)
-
-    def get_agenda_list_view_title(self):
-        """
-        Return a title string for the agenda list view.
-
-        Returns only the motion title so that you have agenda item number,
-        title and motion identifier in the agenda.
+        If the identifier is given, the title consists of the motion verbose name
+        and the identifier.
         Note: It has to be the same return value like in JavaScript.
         """
         if self.identifier:
-            string = '%s %s' % (_(self._meta.verbose_name), self.identifier)
+            title = '%s %s' % (_(self._meta.verbose_name), self.identifier)
         else:
-            string = '%s (%s)' % (_(self._meta.verbose_name), self.title)
-        return string
+            title = self.title
+        return title
+
+    def get_agenda_title_with_type(self):
+        """
+        Return a title for the agenda with the type or the modified title if the
+        identifier is set..
+
+        Note: It has to be the same return value like in JavaScript.
+        """
+        if self.identifier:
+            title = '%s %s' % (_(self._meta.verbose_name), self.identifier)
+        else:
+            title = '%s (%s)' % (self.title, _(self._meta.verbose_name))
+        return title
 
     @property
     def agenda_item(self):
@@ -781,6 +785,7 @@ class MotionBlock(RESTModelMixin, models.Model):
     agenda_items = GenericRelation(Item, related_name='topics')
 
     class Meta:
+        verbose_name = ugettext_noop('Motion block')
         default_permissions = ()
 
     def __str__(self):
@@ -821,8 +826,8 @@ class MotionBlock(RESTModelMixin, models.Model):
     def get_agenda_title(self):
         return self.title
 
-    def get_agenda_list_view_title(self):
-        return self.title
+    def get_agenda_title_with_type(self):
+        return '%s (%s)' % (self.get_agenda_title(), _(self._meta.verbose_name))
 
 
 class MotionLog(RESTModelMixin, models.Model):
diff --git a/openslides/topics/models.py b/openslides/topics/models.py
index ecee8331f..ff9185bc3 100644
--- a/openslides/topics/models.py
+++ b/openslides/topics/models.py
@@ -78,7 +78,13 @@ class Topic(RESTModelMixin, models.Model):
         return self.agenda_item.pk
 
     def get_agenda_title(self):
+        """
+        Returns the title for the agenda.
+        """
         return self.title
 
-    def get_agenda_list_view_title(self):
-        return self.title
+    def get_agenda_title_with_type(self):
+        """
+        Returns the agenda title. Topicy should not get a type postfix.
+        """
+        return self.get_agenda_title()
diff --git a/tests/integration/agenda/test_viewset.py b/tests/integration/agenda/test_viewset.py
index 678aa49c9..9a44ad069 100644
--- a/tests/integration/agenda/test_viewset.py
+++ b/tests/integration/agenda/test_viewset.py
@@ -69,7 +69,7 @@ class RetrieveItem(TestCase):
             'content_object',)))
         forbidden_keys = (
             'item_number',
-            'list_view_title',
+            'title_with_type',
             'comment',
             'closed',
             'type',