diff --git a/README.md b/README.md
index 981baaf..af6a4df 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,39 @@
-# CronogramasPrimeng
+# Cronogramas PrimeNG Application
 
-This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 19.2.9.
+Este proyecto es una aplicación Angular 19 utilizando PrimeNG para la gestión de cronogramas.
+
+## Estructura de Interfaces
+
+Se han creado las siguientes interfaces para los modelos de datos:
+
+- **Cronograma**: Modelo base para todos los cronogramas
+- **Empresa**: Modelo para empresas
+- **TipoCarga**: Modelo para tipos de carga
+- **EstadoAprobacion**: Modelo para estados de aprobación
+- **ActualizacionPd**: Modelo para actualizaciones de PD
+- **AjustePd**: Modelo para ajustes de PD
+- **UnidadInformacion**: Modelo para unidades de información
+
+## Servicios
+
+Los servicios implementados permiten conectarse a un backend mediante HTTP:
+
+- **CronogramaService**: CRUD para cronogramas
+- **EmpresaService**: CRUD para empresas
+- **ActualizacionPdService**: CRUD para actualizaciones de PD
+- **AjustePdService**: CRUD para ajustes de PD
+- **UnidadInformacionService**: CRUD para unidades de información
+- **TipoCargaService**: Consulta de tipos de carga
+- **EstadoAprobacionService**: Consulta de estados de aprobación
+- **AuthService**: Autenticación y gestión de tokens
+
+## Seguridad
+
+La aplicación incluye:
+
+- Interceptor HTTP para añadir tokens de autenticación
+- Guard para proteger rutas
+- Login y sistema de autenticación
 
 ## Development server
 
@@ -12,20 +45,6 @@ ng serve
 
 Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
 
-## Code scaffolding
-
-Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
-
-```bash
-ng generate component component-name
-```
-
-For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
-
-```bash
-ng generate --help
-```
-
 ## Building
 
 To build the project run:
@@ -36,24 +55,6 @@ ng build
 
 This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
 
-## Running unit tests
-
-To execute unit tests with the [Karma](https://karma-runner.github.io) test runner, use the following command:
-
-```bash
-ng test
-```
-
-## Running end-to-end tests
-
-For end-to-end (e2e) testing, run:
-
-```bash
-ng e2e
-```
-
-Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
-
 ## Additional Resources
 
 For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.
diff --git a/src/app/app.config.ts b/src/app/app.config.ts
index 6119fcd..8b3ddeb 100644
--- a/src/app/app.config.ts
+++ b/src/app/app.config.ts
@@ -1,16 +1,19 @@
 import { ApplicationConfig, provideZoneChangeDetection } from '@angular/core';
 import { provideRouter } from '@angular/router';
+import { provideHttpClient, withFetch, withInterceptors } from '@angular/common/http';
 
 import { routes } from './app.routes';
 import { provideAnimations } from '@angular/platform-browser/animations';
 import { providePrimeNG } from 'primeng/config';
 import Aura from '@primeng/themes/aura';
+import { authInterceptor } from './interceptors/auth.interceptor';
 
 export const appConfig: ApplicationConfig = {
   providers: [
     provideZoneChangeDetection({ eventCoalescing: true }),
     provideRouter(routes),
     provideAnimations(),
+    provideHttpClient(withFetch(), withInterceptors([authInterceptor])),
     providePrimeNG({
       theme: {
         preset: Aura,
@@ -18,7 +21,6 @@ export const appConfig: ApplicationConfig = {
           darkModeSelector: false || 'none'
         }
       }
-
     })
   ]
 };
diff --git a/src/app/app.routes.ts b/src/app/app.routes.ts
index dc7d429..4026757 100644
--- a/src/app/app.routes.ts
+++ b/src/app/app.routes.ts
@@ -8,6 +8,7 @@ import { ActualizacionPdComponent } from './pages/actualizacion-pd/actualizacion
 import { AjustePdComponent } from './pages/ajuste-pd/ajuste-pd.component';
 import { ResumenComponent } from './pages/resumen/resumen.component';
 import { UnidadInformacionComponent } from './pages/unidad-informacion/unidad-informacion.component';
+import { authGuard } from './guards/auth.guard';
 
 export const routes: Routes = [
     { path: 'login', component: LoginComponent },
@@ -15,6 +16,7 @@ export const routes: Routes = [
     {
       path: '',
       component: LayoutComponent,
+      canActivate: [authGuard],
       children: [
         { path: '', redirectTo: 'inicio', pathMatch: 'full' },
         { path: 'inicio', component: HomeComponent, data: { title: 'Inicio' } },
diff --git a/src/app/components/navbar/navbar.component.html b/src/app/components/navbar/navbar.component.html
index 067dce9..f01f31b 100644
--- a/src/app/components/navbar/navbar.component.html
+++ b/src/app/components/navbar/navbar.component.html
@@ -12,7 +12,7 @@
 
   </ul>
   <div class="navbar-right">
-    <span class="user-name">Luis Muñoz</span>
+    <span class="user-name">{{ userName }}</span>
     <button pButton icon="pi pi-sign-out" class="p-button-text p-button-rounded logout-button"
       (click)="confirmarAccion()"></button>
   </div>
@@ -22,8 +22,12 @@
 <div class="page-header">
   <div class="page-title tituloNavbar">{{ pageTitle }}</div>
   <div class="breadcrumb-container">
-    <a routerLink="/dashboard" class="breadcrumb-link">Inicio</a>
+    <a routerLink="/inicio" class="breadcrumb-link">Inicio</a>
     <span class="breadcrumb-separator">/</span>
     <span class="breadcrumb-current">{{ pageTitle }}</span>
   </div>
 </div>
+
+<!-- Componentes para mensajes y diálogos -->
+<p-toast></p-toast>
+<p-confirmDialog [style]="{width: '450px'}"></p-confirmDialog>
diff --git a/src/app/components/navbar/navbar.component.ts b/src/app/components/navbar/navbar.component.ts
index 85ec99c..713e70b 100644
--- a/src/app/components/navbar/navbar.component.ts
+++ b/src/app/components/navbar/navbar.component.ts
@@ -1,21 +1,40 @@
-import { Component, EventEmitter, Output } from '@angular/core';
+import { Component, EventEmitter, Output, OnInit } from '@angular/core';
 import { RouterLink } from '@angular/router';
 import { ButtonModule } from 'primeng/button';
-import { ConfirmationService } from 'primeng/api';
+import { ConfirmationService, MessageService } from 'primeng/api';
 import { ActivatedRoute, NavigationEnd, Router } from '@angular/router';
 import { filter, map, mergeMap } from 'rxjs/operators';
+import { CommonModule } from '@angular/common';
+import { ConfirmDialogModule } from 'primeng/confirmdialog';
+import { ToastModule } from 'primeng/toast';
+import { AuthService } from '../../services/auth.service';
 
 @Component({
   selector: 'app-navbar',
-  imports: [RouterLink, ButtonModule],
+  imports: [
+    CommonModule,
+    RouterLink, 
+    ButtonModule,
+    ConfirmDialogModule,
+    ToastModule
+  ],
+  providers: [ConfirmationService, MessageService],
   templateUrl: './navbar.component.html',
   styleUrl: './navbar.component.scss',
   standalone: true
 })
-export class NavbarComponent {
+export class NavbarComponent implements OnInit {
   @Output() sidebarToggle = new EventEmitter<void>();
   pageTitle: string = 'Starter Pages';
-  constructor(private confirmationService: ConfirmationService,private router: Router, private activatedRoute: ActivatedRoute) {
+  userName: string = '';
+  
+  constructor(
+    private confirmationService: ConfirmationService,
+    private messageService: MessageService,
+    private router: Router, 
+    private activatedRoute: ActivatedRoute,
+    private authService: AuthService
+  ) {
     this.router.events.pipe(
       filter(event => event instanceof NavigationEnd),
       map(() => {
@@ -30,7 +49,17 @@ export class NavbarComponent {
       this.pageTitle = data['title'] || 'Sin título';
     });
   }
-
+  
+  ngOnInit() {
+    // Obtener nombre de usuario del usuario logueado
+    this.authService.user$.subscribe(user => {
+      if (user) {
+        this.userName = user.name || user.username || 'Usuario';
+      } else {
+        this.userName = 'Usuario';
+      }
+    });
+  }
 
   toggleSidebar() {
     this.sidebarToggle.emit();
@@ -46,13 +75,21 @@ export class NavbarComponent {
       acceptButtonStyleClass: 'p-button-danger',
       rejectButtonStyleClass: 'p-button-secondary',
       accept: () => {
-        console.log('Sesión cerrada');
+        this.logout();
       },
       reject: () => {
         console.log('Canceló cierre de sesión');
       }
     });
   }
-
-
+  
+  logout() {
+    this.authService.logout();
+    this.messageService.add({
+      severity: 'success',
+      summary: 'Sesión cerrada',
+      detail: 'Has cerrado sesión exitosamente'
+    });
+    this.router.navigate(['/login']);
+  }
 }
diff --git a/src/app/guards/auth.guard.ts b/src/app/guards/auth.guard.ts
new file mode 100644
index 0000000..c21a7e0
--- /dev/null
+++ b/src/app/guards/auth.guard.ts
@@ -0,0 +1,16 @@
+import { inject } from '@angular/core';
+import { CanActivateFn, Router } from '@angular/router';
+import { AuthService } from '../services/auth.service';
+
+export const authGuard: CanActivateFn = () => {
+  const authService = inject(AuthService);
+  const router = inject(Router);
+
+  if (authService.isLoggedIn()) {
+    return true;
+  }
+  
+  // Redirect to login if not authenticated
+  router.navigate(['/login']);
+  return false;
+};
\ No newline at end of file
diff --git a/src/app/interceptors/auth.interceptor.ts b/src/app/interceptors/auth.interceptor.ts
new file mode 100644
index 0000000..858d5d8
--- /dev/null
+++ b/src/app/interceptors/auth.interceptor.ts
@@ -0,0 +1,46 @@
+import { inject } from '@angular/core';
+import {
+  HttpRequest,
+  HttpHandlerFn,
+  HttpInterceptorFn,
+  HttpErrorResponse
+} from '@angular/common/http';
+import { Observable, throwError } from 'rxjs';
+import { catchError } from 'rxjs/operators';
+import { AuthService } from '../services/auth.service';
+import { Router } from '@angular/router';
+
+export const authInterceptor: HttpInterceptorFn = (
+  request: HttpRequest<unknown>,
+  next: HttpHandlerFn
+): Observable<any> => {
+  const authService = inject(AuthService);
+  const router = inject(Router);
+  
+  // Get the auth token
+  const token = authService.getToken();
+
+  // Clone the request and add the token if it exists
+  if (token) {
+    const authRequest = request.clone({
+      setHeaders: {
+        Authorization: `Bearer ${token}`
+      }
+    });
+    
+    // Handle the authenticated request
+    return next(authRequest).pipe(
+      catchError((error: HttpErrorResponse) => {
+        // Handle 401 Unauthorized errors by logging out and redirecting to login
+        if (error.status === 401) {
+          authService.logout();
+          router.navigate(['/login']);
+        }
+        return throwError(() => error);
+      })
+    );
+  }
+  
+  // If no token, just pass the request through
+  return next(request);
+};
\ No newline at end of file
diff --git a/src/app/models/actualizacion-pd.model.ts b/src/app/models/actualizacion-pd.model.ts
new file mode 100644
index 0000000..90ff6d8
--- /dev/null
+++ b/src/app/models/actualizacion-pd.model.ts
@@ -0,0 +1,10 @@
+import { Cronograma } from './cronograma.model';
+
+export interface ActualizacionPd extends Cronograma {
+  dato9?: string;
+  dato10?: string;
+  dato11?: string;
+  dato12?: string;
+  dato13?: string;
+  dato14?: string;
+}
diff --git a/src/app/models/ajuste-pd.model.ts b/src/app/models/ajuste-pd.model.ts
new file mode 100644
index 0000000..7431e0e
--- /dev/null
+++ b/src/app/models/ajuste-pd.model.ts
@@ -0,0 +1,12 @@
+import { Cronograma } from './cronograma.model';
+
+export interface AjustePd extends Cronograma {
+  dato9?: string;
+  dato10?: string;
+  dato13?: string;
+  dato14?: string;
+  dato15?: string;
+  dato16?: string;
+  dato17?: string;
+  dato18?: string;
+}
diff --git a/src/app/models/cronograma.model.ts b/src/app/models/cronograma.model.ts
new file mode 100644
index 0000000..3e7c39d
--- /dev/null
+++ b/src/app/models/cronograma.model.ts
@@ -0,0 +1,11 @@
+export interface Cronograma {
+  id?: number;
+  empresa: string;
+  codigoCronograma: string;
+  codigoCronogramaAjuste: string;
+  tipoCarga: string;
+  estadoRevision?: string;
+  analista?: string;
+  fechaIngreso?: string;
+  semaforo?: 'green' | 'yellow' | 'red';
+}
diff --git a/src/app/models/empresa.model.ts b/src/app/models/empresa.model.ts
new file mode 100644
index 0000000..6f134d2
--- /dev/null
+++ b/src/app/models/empresa.model.ts
@@ -0,0 +1,4 @@
+export interface Empresa {
+  id?: number;
+  name: string;
+}
diff --git a/src/app/models/estado-aprobacion.model.ts b/src/app/models/estado-aprobacion.model.ts
new file mode 100644
index 0000000..0c79473
--- /dev/null
+++ b/src/app/models/estado-aprobacion.model.ts
@@ -0,0 +1,4 @@
+export interface EstadoAprobacion {
+  id?: number;
+  name: string;
+}
diff --git a/src/app/models/index.ts b/src/app/models/index.ts
new file mode 100644
index 0000000..ee573f3
--- /dev/null
+++ b/src/app/models/index.ts
@@ -0,0 +1,7 @@
+export * from './cronograma.model';
+export * from './empresa.model';
+export * from './tipo-carga.model';
+export * from './estado-aprobacion.model';
+export * from './actualizacion-pd.model';
+export * from './ajuste-pd.model';
+export * from './unidad-informacion.model';
diff --git a/src/app/models/tipo-carga.model.ts b/src/app/models/tipo-carga.model.ts
new file mode 100644
index 0000000..109fcf9
--- /dev/null
+++ b/src/app/models/tipo-carga.model.ts
@@ -0,0 +1,4 @@
+export interface TipoCarga {
+  id?: number;
+  name: string;
+}
diff --git a/src/app/models/unidad-informacion.model.ts b/src/app/models/unidad-informacion.model.ts
new file mode 100644
index 0000000..9a95674
--- /dev/null
+++ b/src/app/models/unidad-informacion.model.ts
@@ -0,0 +1,6 @@
+import { Cronograma } from './cronograma.model';
+
+export interface UnidadInformacion extends Cronograma {
+  dato5?: string;
+  dato6?: string;
+}
diff --git a/src/app/pages/home/home.component.html b/src/app/pages/home/home.component.html
index 3cc4f7e..784169c 100644
--- a/src/app/pages/home/home.component.html
+++ b/src/app/pages/home/home.component.html
@@ -1,5 +1,3 @@
-<!-- src/app/pages/home/home.component.html -->
-
 
 <div class="home-page">
   <!-- Simple Card -->
diff --git a/src/app/pages/login/login.component.html b/src/app/pages/login/login.component.html
index 6488d88..b95a560 100644
--- a/src/app/pages/login/login.component.html
+++ b/src/app/pages/login/login.component.html
@@ -12,10 +12,11 @@
   </div>
 </div>
 
+<!-- Toast para mensajes -->
+<p-toast></p-toast>
 
-
-  <!-- MAIN CONTENT -->
-  <main class="main-content">
+<!-- MAIN CONTENT -->
+<main class="main-content">
   <div class="login-container">
     <div class="login-box">
       <div class="login-card">
@@ -34,6 +35,7 @@
             placeholder="Email"
             class="input-with-icon w-full mb-3"
             style="background-color: white; color: black;"
+            required
           />
 
           <!-- Password -->
@@ -45,51 +47,45 @@
             placeholder="Password"
             class="input-with-lock w-full"
             style="background-color: white; color: black;"
+            required
           />
 
+          <!-- Mensaje de error -->
+          <div *ngIf="errorMessage" class="error-message mt-2">
+            <p-message severity="error" [text]="errorMessage"></p-message>
+          </div>
+
           <!-- Botón -->
           <div class="login-actions">
             <button
               pButton
               type="submit"
-              label="Autenticar"
+              [label]="loading ? 'Autenticando...' : 'Autenticar'"
               class="p-button-primary w-full"
-              style="color: white">
+              style="color: white"
+              [disabled]="loading || !email || !password">
+              <i *ngIf="loading" class="pi pi-spin pi-spinner mr-2"></i>
             </button>
           </div>
 
         </form>
 
-        <!-- <form (ngSubmit)="onLogin()">
-          <div class="p-inputgroup mb-3">
-            <input type="email" pInputText [(ngModel)]="email" name="email" placeholder="Email" class="w-full">
-            <span class="p-inputgroup-addon bg-red-600 text-white">&#64;</span>
-            <span class="p-inputgroup-addon">
-              <i class="pi pi-envelope"></i>
-            </span>
-          </div>
-          <div class="p-inputgroup mb-4">
-            <input type="password" pInputText [(ngModel)]="password" name="password" placeholder="Password" class="w-full">
-            <span class="p-inputgroup-addon bg-red-600 text-white">***</span>
-            <span class="p-inputgroup-addon">
-              <i class="pi pi-lock"></i>
-            </span>
-          </div>
-
-          <div class="login-actions">
-            <button pButton type="submit" label="Autenticar" class="p-button-primary"></button>
-          </div>
-        </form> -->
-
         <!-- Recuperar contraseña -->
         <div class="password-recovery">
           <a href="#">Recuperar Contraseña</a>
         </div>
 
+        <!-- Credenciales de prueba -->
+        <div class="test-credentials mt-3 p-2" style="background-color: #f8f9fa; border-radius: 4px;">
+          <p class="mb-1"><strong>Credenciales de prueba:</strong></p>
+          <p class="mb-1">Email: admin&#64;example.com</p>
+          <p>Password: admin123</p>
+        </div>
+
       </div>
     </div>
   </div>
 </main>
 
-  <!-- FOOTER -->
-  <app-footer></app-footer>
+<!-- FOOTER -->
+<app-footer></app-footer>
diff --git a/src/app/pages/login/login.component.ts b/src/app/pages/login/login.component.ts
index 49197c4..e224fa3 100644
--- a/src/app/pages/login/login.component.ts
+++ b/src/app/pages/login/login.component.ts
@@ -8,7 +8,12 @@ import { InputTextModule } from 'primeng/inputtext';
 import { ButtonModule } from 'primeng/button';
 import { PasswordModule } from 'primeng/password';
 import { DividerModule } from 'primeng/divider';
+import { MessagesModule } from 'primeng/messages';
+import { MessageModule } from 'primeng/message';
+import { ToastModule } from 'primeng/toast';
+import { MessageService } from 'primeng/api';
 import { FooterComponent } from "../../components/footer/footer.component";
+import { AuthService } from '../../services/auth.service';
 
 @Component({
   selector: 'app-login',
@@ -20,20 +25,50 @@ import { FooterComponent } from "../../components/footer/footer.component";
     ButtonModule,
     PasswordModule,
     DividerModule,
+    MessagesModule,
+    MessageModule,
+    ToastModule,
     FooterComponent
-],
+  ],
+  providers: [MessageService],
   templateUrl: './login.component.html',
   styleUrl: './login.component.scss'
 })
 export class LoginComponent {
   email: string = '';
   password: string = '';
+  loading: boolean = false;
+  errorMessage: string = '';
+
+  constructor(
+    private router: Router, 
+    private authService: AuthService,
+    private messageService: MessageService
+  ) { }
 
-  constructor(private router: Router) { }
   onLogin() {
-    // Aquí iría la lógica de autenticación
-    // Por ahora, solo navegamos a la página de inicio
-    this.router.navigate(['/inicio']);
+    this.loading = true;
+    this.errorMessage = '';
+    
+    // Llamar al servicio auth
+    this.authService.login({ email: this.email, password: this.password })
+      .subscribe({
+        next: () => {
+          console.log('Login exitoso');
+          this.loading = false;
+          this.router.navigate(['/inicio']);
+        },
+        error: (error) => {
+          console.error('Error en login:', error);
+          this.loading = false;
+          this.errorMessage = 'Credenciales incorrectas';
+          this.messageService.add({ 
+            severity: 'error', 
+            summary: 'Error', 
+            detail: 'Credenciales incorrectas' 
+          });
+        }
+      });
   }
 
 }
diff --git a/src/app/services/actualizacion-pd.service.ts b/src/app/services/actualizacion-pd.service.ts
new file mode 100644
index 0000000..192b4dd
--- /dev/null
+++ b/src/app/services/actualizacion-pd.service.ts
@@ -0,0 +1,41 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { ActualizacionPd } from '../models/actualizacion-pd.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class ActualizacionPdService {
+  private apiUrl = 'api/actualizaciones';
+
+  constructor(private http: HttpClient) {}
+
+  getActualizaciones(): Observable<ActualizacionPd[]> {
+    return this.http.get<ActualizacionPd[]>(this.apiUrl);
+  }
+
+  getActualizacionById(id: number): Observable<ActualizacionPd> {
+    return this.http.get<ActualizacionPd>(`${this.apiUrl}/${id}`);
+  }
+
+  createActualizacion(actualizacion: ActualizacionPd): Observable<ActualizacionPd> {
+    return this.http.post<ActualizacionPd>(this.apiUrl, actualizacion);
+  }
+
+  updateActualizacion(actualizacion: ActualizacionPd): Observable<ActualizacionPd> {
+    return this.http.put<ActualizacionPd>(`${this.apiUrl}/${actualizacion.id}`, actualizacion);
+  }
+
+  deleteActualizacion(id: number): Observable<void> {
+    return this.http.delete<void>(`${this.apiUrl}/${id}`);
+  }
+
+  aprobarActualizacion(id: number): Observable<ActualizacionPd> {
+    return this.http.patch<ActualizacionPd>(`${this.apiUrl}/${id}/aprobar`, {});
+  }
+
+  rechazarActualizacion(id: number, motivo: string): Observable<ActualizacionPd> {
+    return this.http.patch<ActualizacionPd>(`${this.apiUrl}/${id}/rechazar`, { motivo });
+  }
+}
diff --git a/src/app/services/ajuste-pd.service.ts b/src/app/services/ajuste-pd.service.ts
new file mode 100644
index 0000000..4c57f18
--- /dev/null
+++ b/src/app/services/ajuste-pd.service.ts
@@ -0,0 +1,41 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { AjustePd } from '../models/ajuste-pd.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AjustePdService {
+  private apiUrl = 'api/ajustes';
+
+  constructor(private http: HttpClient) {}
+
+  getAjustes(): Observable<AjustePd[]> {
+    return this.http.get<AjustePd[]>(this.apiUrl);
+  }
+
+  getAjusteById(id: number): Observable<AjustePd> {
+    return this.http.get<AjustePd>(`${this.apiUrl}/${id}`);
+  }
+
+  createAjuste(ajuste: AjustePd): Observable<AjustePd> {
+    return this.http.post<AjustePd>(this.apiUrl, ajuste);
+  }
+
+  updateAjuste(ajuste: AjustePd): Observable<AjustePd> {
+    return this.http.put<AjustePd>(`${this.apiUrl}/${ajuste.id}`, ajuste);
+  }
+
+  deleteAjuste(id: number): Observable<void> {
+    return this.http.delete<void>(`${this.apiUrl}/${id}`);
+  }
+
+  aprobarAjuste(id: number): Observable<AjustePd> {
+    return this.http.patch<AjustePd>(`${this.apiUrl}/${id}/aprobar`, {});
+  }
+
+  rechazarAjuste(id: number, motivo: string): Observable<AjustePd> {
+    return this.http.patch<AjustePd>(`${this.apiUrl}/${id}/rechazar`, { motivo });
+  }
+}
diff --git a/src/app/services/auth.service.ts b/src/app/services/auth.service.ts
new file mode 100644
index 0000000..a69b102
--- /dev/null
+++ b/src/app/services/auth.service.ts
@@ -0,0 +1,111 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable, BehaviorSubject, of, throwError } from 'rxjs';
+import { tap, delay } from 'rxjs/operators';
+
+interface LoginCredentials {
+  username?: string;
+  password?: string;
+  email?: string;
+}
+
+interface AuthResponse {
+  token: string;
+  user: {
+    id: number;
+    username: string;
+    name: string;
+    role: string;
+    email?: string;
+  };
+}
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AuthService {
+  private apiUrl = 'api/auth';
+  private userSubject = new BehaviorSubject<any>(null);
+  public user$ = this.userSubject.asObservable();
+  
+  // Usuarios de prueba para simular login
+  private mockUsers = [
+    {
+      email: 'admin@example.com',
+      password: 'admin123',
+      user: {
+        id: 1,
+        username: 'admin',
+        name: 'Administrador',
+        role: 'admin',
+        email: 'admin@example.com'
+      }
+    },
+    {
+      email: 'user@example.com',
+      password: 'user123',
+      user: {
+        id: 2,
+        username: 'user',
+        name: 'Usuario',
+        role: 'user',
+        email: 'user@example.com'
+      }
+    }
+  ];
+  
+  constructor(private http: HttpClient) {
+    // Check if user is already logged in on service initialization
+    const user = localStorage.getItem('user');
+    if (user) {
+      this.userSubject.next(JSON.parse(user));
+    }
+  }
+
+  login(credentials: LoginCredentials): Observable<AuthResponse> {
+    // Simular login con usuarios de prueba
+    const user = this.mockUsers.find(u => 
+      u.email === credentials.email && u.password === credentials.password);
+    
+    if (user) {
+      // Generar token falso
+      const mockResponse: AuthResponse = {
+        token: 'mock-jwt-token-' + Math.random().toString(36).substring(2, 15),
+        user: user.user
+      };
+      
+      return of(mockResponse).pipe(
+        // Simular retraso de red
+        delay(800),
+        tap(response => {
+          // Store token and user info
+          localStorage.setItem('token', response.token);
+          localStorage.setItem('user', JSON.stringify(response.user));
+          this.userSubject.next(response.user);
+        })
+      );
+    } else {
+      // Simular error de credenciales inválidas
+      return throwError(() => new Error('Credenciales incorrectas'));
+    }
+  }
+
+  logout(): void {
+    // Clear storage and update subject
+    localStorage.removeItem('token');
+    localStorage.removeItem('user');
+    this.userSubject.next(null);
+  }
+
+  isLoggedIn(): boolean {
+    return !!localStorage.getItem('token');
+  }
+
+  getToken(): string | null {
+    return localStorage.getItem('token');
+  }
+
+  getCurrentUser(): any {
+    return this.userSubject.value;
+  }
+}
\ No newline at end of file
diff --git a/src/app/services/cronograma.service.ts b/src/app/services/cronograma.service.ts
new file mode 100644
index 0000000..78c6c98
--- /dev/null
+++ b/src/app/services/cronograma.service.ts
@@ -0,0 +1,33 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { Cronograma } from '../models/cronograma.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class CronogramaService {
+  private apiUrl = 'api/cronogramas';
+
+  constructor(private http: HttpClient) {}
+
+  getCronogramas(): Observable<Cronograma[]> {
+    return this.http.get<Cronograma[]>(this.apiUrl);
+  }
+
+  getCronogramaById(id: number): Observable<Cronograma> {
+    return this.http.get<Cronograma>(`${this.apiUrl}/${id}`);
+  }
+
+  createCronograma(cronograma: Cronograma): Observable<Cronograma> {
+    return this.http.post<Cronograma>(this.apiUrl, cronograma);
+  }
+
+  updateCronograma(cronograma: Cronograma): Observable<Cronograma> {
+    return this.http.put<Cronograma>(`${this.apiUrl}/${cronograma.id}`, cronograma);
+  }
+
+  deleteCronograma(id: number): Observable<void> {
+    return this.http.delete<void>(`${this.apiUrl}/${id}`);
+  }
+}
diff --git a/src/app/services/empresa.service.ts b/src/app/services/empresa.service.ts
new file mode 100644
index 0000000..0bbadb3
--- /dev/null
+++ b/src/app/services/empresa.service.ts
@@ -0,0 +1,33 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { Empresa } from '../models/empresa.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class EmpresaService {
+  private apiUrl = 'api/empresas';
+
+  constructor(private http: HttpClient) {}
+
+  getEmpresas(): Observable<Empresa[]> {
+    return this.http.get<Empresa[]>(this.apiUrl);
+  }
+
+  getEmpresaById(id: number): Observable<Empresa> {
+    return this.http.get<Empresa>(`${this.apiUrl}/${id}`);
+  }
+
+  createEmpresa(empresa: Empresa): Observable<Empresa> {
+    return this.http.post<Empresa>(this.apiUrl, empresa);
+  }
+
+  updateEmpresa(empresa: Empresa): Observable<Empresa> {
+    return this.http.put<Empresa>(`${this.apiUrl}/${empresa.id}`, empresa);
+  }
+
+  deleteEmpresa(id: number): Observable<void> {
+    return this.http.delete<void>(`${this.apiUrl}/${id}`);
+  }
+}
diff --git a/src/app/services/estado-aprobacion.service.ts b/src/app/services/estado-aprobacion.service.ts
new file mode 100644
index 0000000..d718b0a
--- /dev/null
+++ b/src/app/services/estado-aprobacion.service.ts
@@ -0,0 +1,17 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { EstadoAprobacion } from '../models/estado-aprobacion.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class EstadoAprobacionService {
+  private apiUrl = 'api/estadosAprobacion';
+
+  constructor(private http: HttpClient) {}
+
+  getEstadosAprobacion(): Observable<EstadoAprobacion[]> {
+    return this.http.get<EstadoAprobacion[]>(this.apiUrl);
+  }
+}
diff --git a/src/app/services/index.ts b/src/app/services/index.ts
new file mode 100644
index 0000000..c26dd2a
--- /dev/null
+++ b/src/app/services/index.ts
@@ -0,0 +1,7 @@
+export * from './cronograma.service';
+export * from './empresa.service';
+export * from './actualizacion-pd.service';
+export * from './ajuste-pd.service';
+export * from './unidad-informacion.service';
+export * from './tipo-carga.service';
+export * from './estado-aprobacion.service';
diff --git a/src/app/services/tipo-carga.service.ts b/src/app/services/tipo-carga.service.ts
new file mode 100644
index 0000000..48d5d75
--- /dev/null
+++ b/src/app/services/tipo-carga.service.ts
@@ -0,0 +1,17 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { TipoCarga } from '../models/tipo-carga.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class TipoCargaService {
+  private apiUrl = 'api/tiposCarga';
+
+  constructor(private http: HttpClient) {}
+
+  getTiposCarga(): Observable<TipoCarga[]> {
+    return this.http.get<TipoCarga[]>(this.apiUrl);
+  }
+}
diff --git a/src/app/services/unidad-informacion.service.ts b/src/app/services/unidad-informacion.service.ts
new file mode 100644
index 0000000..5056adb
--- /dev/null
+++ b/src/app/services/unidad-informacion.service.ts
@@ -0,0 +1,33 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { UnidadInformacion } from '../models/unidad-informacion.model';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class UnidadInformacionService {
+  private apiUrl = 'api/unidades';
+
+  constructor(private http: HttpClient) {}
+
+  getUnidades(): Observable<UnidadInformacion[]> {
+    return this.http.get<UnidadInformacion[]>(this.apiUrl);
+  }
+
+  getUnidadById(id: number): Observable<UnidadInformacion> {
+    return this.http.get<UnidadInformacion>(`${this.apiUrl}/${id}`);
+  }
+
+  createUnidad(unidad: UnidadInformacion): Observable<UnidadInformacion> {
+    return this.http.post<UnidadInformacion>(this.apiUrl, unidad);
+  }
+
+  updateUnidad(unidad: UnidadInformacion): Observable<UnidadInformacion> {
+    return this.http.put<UnidadInformacion>(`${this.apiUrl}/${unidad.id}`, unidad);
+  }
+
+  deleteUnidad(id: number): Observable<void> {
+    return this.http.delete<void>(`${this.apiUrl}/${id}`);
+  }
+}