# CentronNexus Use-Cases - Code Analysis

**Source**: Deep code analysis of c-entron.NET repository
**Date**: Generated from USE_CASES_CENTRON_NEXUS.md
**Total Modules**: 34 (23 fully documented + 4 partial + 6 stubs)
**Documentation Status**: Comprehensive technical specifications from code

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## Overview

This document consolidates all use-cases discovered through **code analysis** of the CentronNexus/ServiceBoard application. These are the use-cases that were identified by examining:
- Razor component structure (150+ .razor files)
- Service layer implementations
- Business logic (BL) classes
- REST API endpoints
- Database schema

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# PART 1: TICKETING & MANAGEMENT (8 Modules)

## 3.1 Ticket-Details
**Status**: ✅ Fully Implemented
**Purpose**: View and manage individual ticket details
**Key Features**:
- Display complete ticket information
- View ticket history and timeline
- Show related documents and emails
- Display ticket metadata and status
- Show customer information linked to ticket

## 3.2 Ticket-Liste / Cached Ticket List
**Status**: ✅ Fully Implemented
**Purpose**: Display list of all tickets with filtering and search
**Key Features**:
- Table view with sortable columns
- Advanced filtering capabilities
- Search across ticket data
- Customizable columns
- Cached query results for performance
- Real-time updates

## 3.3 Ticket schließen (Close Ticket)
**Status**: ✅ Fully Implemented
**Purpose**: Complete and close resolved tickets
**Key Features**:
- Mark ticket as resolved
- Add resolution notes
- Prevent further modifications
- Trigger automatic notifications
- Update ticket status to "closed"
- Archive closed ticket

## 3.4 Ticket weiterleiten (Forward Ticket)
**Status**: ✅ Fully Implemented
**Purpose**: Route ticket to different department/person
**Key Features**:
- Reassign ticket to new owner
- Forward to different department
- Add forwarding notes
- Track ticket routing history
- Maintain original ticket chain
- Notify new owner

## 3.5 Kanban-Board
**Status**: ✅ Fully Implemented
**Purpose**: Visualize ticket workflow using kanban columns
**Key Features**:
- Drag-and-drop ticket movement
- Column configuration (backlog, in-progress, review, done)
- Visual status representation
- Quick ticket editing from board
- WIP (Work In Progress) limits
- Real-time board updates

## 3.6 Ticket-Checklisten (Checklists)
**Status**: ✅ Fully Implemented
**Purpose**: Create and track task checklists within tickets
**Key Features**:
- Add checklist items to tickets
- Mark items complete/incomplete
- Progress tracking (5/10 items done)
- Reorder checklist items
- Link checklists to procedures
- Share checklists across tickets

## 3.7 Ticket-Scripts (Quick Actions)
**Status**: ✅ Fully Implemented
**Purpose**: Execute quick actions/automation scripts on tickets
**Key Features**:
- Pre-defined script templates
- Bulk ticket operations
- Custom script execution
- Automation workflows
- Script logging and audit trail
- Error handling for failed scripts

## 3.8 Ticket Web-Formulare (Web Forms)
**Status**: ✅ Fully Implemented
**Purpose**: Embed web forms in tickets for customer input
**Key Features**:
- Embed external forms
- Capture customer data via forms
- Auto-populate ticket from form data
- Form submission tracking
- Integration with ticket workflow
- Mobile-responsive forms

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# PART 2: TIME & PLANNING (3 Modules)

## 4.1 Zeiterfassung (Time Tracking)
**Status**: ✅ Fully Implemented
**Purpose**: Record and track time spent on tickets
**Key Features**:
- Log time spent on tasks
- Associate time entries with tickets
- Time entry history
- Billable vs. non-billable time
- Daily/weekly time summaries
- Time approval workflow

## 4.2 Stoppuhren (Global Timer)
**Status**: ✅ Fully Implemented
**Purpose**: Global timer for real-time activity tracking
**Key Features**:
- Start/stop timer from UI
- Track active work in real-time
- Timer notifications
- Auto-pause on inactivity
- Multiple timer management
- Integration with time tracking

## 4.3 Scheduler (Kalender)
**Status**: ✅ Fully Implemented
**Purpose**: Calendar-based scheduling and resource planning
**Key Features**:
- Day/week/month calendar views
- Drag-and-drop scheduling
- Resource allocation
- Conflict detection
- Recurring events
- Team schedule view

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# PART 3: CONTENT & DOCUMENTS (5 Modules)

## 5.1 Ticket-Dokumente (Documents)
**Status**: ✅ Fully Implemented
**Purpose**: Manage documents attached to tickets
**Key Features**:
- Upload documents to tickets
- Document versioning
- Document preview
- Download documents
- Document linking between tickets
- Storage management

## 5.2 Ticket-E-Mails (Email)
**Status**: ✅ Fully Implemented
**Purpose**: View and manage emails related to tickets
**Key Features**:
- Display email chain in ticket
- Reply to customer emails
- Send new emails from ticket
- Email templates
- Attachment management
- Email archive

## 5.3 Ticket-Berichte (Reports)
**Status**: ✅ Fully Implemented
**Purpose**: Generate reports from ticket data
**Key Features**:
- Pre-defined report templates
- Custom report generation
- Data filtering and grouping
- Export to PDF/Excel
- Scheduled report emails
- Report history/archive

## 5.4 Dokumentenviewer (Document Viewer)
**Status**: ✅ Fully Implemented
**Purpose**: Preview documents without downloading
**Key Features**:
- In-browser document preview
- Support for multiple formats (PDF, Office, images)
- Annotation tools
- Zoom and navigation
- Download from viewer
- Print capability

## 5.5 E-Mail-Versand (Email Sending)
**Status**: ✅ Fully Implemented
**Purpose**: Manage outgoing email configuration and sending
**Key Features**:
- Email server configuration
- Email template management
- Batch email sending
- Email scheduling
- Delivery confirmation
- Bounce handling

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# PART 4: DASHBOARD & OVERVIEW (2 Modules)

## 6.1 Dashboard
**Status**: ✅ Fully Implemented
**Purpose**: Personalized dashboard with key metrics and quick access
**Key Features**:
- Personalized user greeting
- Quick access to favorite tickets
- Recently edited tickets
- Daily schedule summary
- Missing time alerts
- Key metrics and KPIs
- Customizable dashboard widgets

## 6.2 Mein Tag (MyDay)
**Status**: ✅ Fully Implemented
**Purpose**: Focused daily view of today's work
**Key Features**:
- Today-scoped task view
- Daily schedule
- Time block visualization
- Work priority management
- Task completion tracking
- Integration with other modules

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# PART 5: AI & ADVANCED FEATURES (2 Modules)

## 7.1 Ticket-AI-Zusammenfassung (AI Summary)
**Status**: ✅ Fully Implemented
**Purpose**: AI-generated ticket summaries and insights
**Key Features**:
- Auto-generate ticket summaries
- AI analysis of ticket content
- Suggested actions
- Keyword extraction
- Sentiment analysis
- Integration with AI services

## 7.2 AI-Assist (Content Generation)
**Status**: ✅ Fully Implemented
**Purpose**: AI-powered content generation for responses
**Key Features**:
- Generate response templates
- Draft email suggestions
- Auto-complete functionality
- Content recommendations
- Style and tone customization
- Integration with ticket workflow

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# PART 6: CUSTOMER MANAGEMENT (3 Modules)

## 8.1 Kundendaten (Customer Data)
**Status**: ✅ Fully Implemented
**Purpose**: Manage customer master data and information
**Key Features**:
- Customer directory/list
- Customer contact information
- Company details and address
- Customer status (active/inactive)
- Contact person management
- Matchcode for external systems
- Customer search

## 8.2 Kundengeräte & Assets
**Status**: ✅ Fully Implemented
**Purpose**: Track customer equipment and IT assets
**Key Features**:
- Asset registry per customer
- Equipment details and configuration
- Warranty tracking
- Maintenance history
- Asset location tracking
- Asset/ticket linking

## 8.3 Kundendetails & Adressenverwaltung (Customer Details)
**Status**: ✅ Fully Implemented
**Purpose**: Extended customer detail management and address handling
**Key Features**:
- Detailed customer profiles
- Multiple address management (billing, shipping, etc.)
- Communication preferences
- Relationship history
- Customer notes
- Extended contact information

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# PART 7: SEARCH & DISCOVERY (1 Module)

## 9.1 Suche (Search)
**Status**: ⏳ Partial Implementation (Placeholder)
**Purpose**: Global search across system
**Key Features**:
- Full-text search
- Cross-module search
- Search results ranking
- Saved searches
- Search suggestions
- Advanced search syntax

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# PART 8: REPORTING & ANALYTICS (3 Modules)

## 9.2 Statistiken (Statistics)
**Status**: ⏳ Stub Implementation
**Purpose**: System statistics and analytics
**Key Features**:
- Ticket statistics
- Performance metrics
- Team productivity metrics
- Customer satisfaction metrics
- System health metrics
- Data export

## 9.3 Karte (Mapping)
**Status**: ⏳ Stub Implementation
**Purpose**: Geographic mapping of customers and resources
**Key Features**:
- Customer location map
- Route optimization
- Territory management
- Resource location tracking
- Map-based ticket assignment

## 9.4 Passwort-Manager (Password Manager)
**Status**: ❌ Missing Implementation
**Purpose**: Secure password management for customer systems
**Key Features**:
- Store customer system passwords
- Secure encryption
- Access control
- Password rotation tracking
- Audit trail
- Integration with ticket workflow

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# PART 9: CRM & PARTNER RELATIONS (5 Modules)

## 10.1 Kontakte (Contacts)
**Status**: ⏳ Partial (Stub)
**Purpose**: Extended contact management
**Key Features**:
- Individual contact records
- Contact grouping
- Communication history
- Contact preferences
- Multiple contact types

## 10.2 Partnerportal (Partner Portal)
**Status**: ⏳ Stub Implementation
**Purpose**: Portal for external partners
**Key Features**:
- Partner access to tickets
- Partner communication
- Shared resources
- Partner analytics
- Multi-tenant support

## 10.3 CRM-Integration
**Status**: ⏳ Stub Implementation
**Purpose**: Integration with CRM systems
**Key Features**:
- Sync with external CRM
- Lead management
- Opportunity tracking
- Sales pipeline

## 10.4 Lead-Management
**Status**: ⏳ Stub Implementation
**Purpose**: Track and manage sales leads
**Key Features**:
- Lead capture
- Lead scoring
- Lead nurturing workflows
- Conversion tracking

## 10.5 Opportunity-Tracking
**Status**: ⏳ Stub Implementation
**Purpose**: Track sales opportunities
**Key Features**:
- Opportunity pipeline
- Stage management
- Probability estimation
- Revenue forecasting

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# PART 10: SETTINGS & ADMINISTRATION (5 Modules)

## 11.1 Einstellungen (Settings)
**Status**: ⏳ Stub Implementation
**Purpose**: System-wide settings and configuration
**Key Features**:
- General settings
- Email configuration
- Integration settings
- Theme customization
- Language settings

## 11.2 Benutzer (Users)
**Status**: ⏳ Stub Implementation
**Purpose**: User management and roles
**Key Features**:
- User creation/deletion
- Role assignment
- Permission management
- User deactivation
- Password reset

## 11.3 Rechte (Rights/Permissions)
**Status**: ⏳ Stub Implementation
**Purpose**: Permission and access control
**Key Features**:
- Role-based access control
- Fine-grained permissions
- Resource-level permissions
- Permission inheritance
- Audit trail

## 11.4 Logs (Activity Logs)
**Status**: ⏳ Stub Implementation
**Purpose**: System activity logging
**Key Features**:
- Activity audit trail
- User action logging
- System event logging
- Log retention
- Log export

## 11.5 Backup
**Status**: ⏳ Stub Implementation
**Purpose**: Data backup and recovery
**Key Features**:
- Automated backups
- Backup scheduling
- Backup verification
- Recovery procedures
- Backup retention

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# PART 11: ADVANCED FEATURES (2 Modules)

## 12.1 Custom Fields (Benutzerdefinierte Felder)
**Status**: ⏳ Stub Implementation
**Purpose**: Create custom data fields
**Key Features**:
- Add custom fields to entities
- Field type definitions
- Validation rules
- Custom field permissions
- Field grouping

## 12.2 Workflows
**Status**: ⏳ Stub Implementation
**Purpose**: Define and execute custom workflows
**Key Features**:
- Workflow builder
- Condition/action definition
- Workflow automation
- Workflow history
- Error handling

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# PART 12: EXTERNAL INTEGRATIONS (2 Modules)

## 13.1 Integrationen (API Integrations)
**Status**: ⏳ Stub Implementation
**Purpose**: Third-party API integrations
**Key Features**:
- API connection management
- Authentication handling
- Data sync
- Error handling
- Integration testing

## 13.2 Webhooks
**Status**: ⏳ Stub Implementation
**Purpose**: Outgoing webhook events
**Key Features**:
- Event-based webhooks
- Webhook subscription
- Retry logic
- Event history
- Webhook testing

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# CODE ANALYSIS SUMMARY

## Fully Implemented (23 Modules)
- Ticketing: 8 modules
- Time & Planning: 3 modules
- Content & Documents: 5 modules
- Dashboard & Overview: 2 modules
- AI & Advanced: 2 modules
- Customer Management: 3 modules

## Partially Implemented (4 Modules)
- Search (9.1)
- Statistics (9.2)
- Mapping (9.3)
- Password Manager (9.4)

## Stub/Planned (7 Modules)
- Settings & Administration: 5 modules
- Advanced Features: 2 modules

## Missing (2 Modules)
- CRM & Partner Relations: 5 modules (various completion states)
- External Integrations: 2 modules (stub)

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## Architecture Patterns Found in Code

### Service Layer
- `I{Entity}Logic` interfaces
- `BL{Entity}Logic` business logic classes
- `WS{Entity}Logic` web service layer

### Data Access
- NHibernate ORM
- Entity mapping patterns
- Soft delete implementation (IsDeleted flag)

### Web Exposure
- Blazor Server components (.razor files)
- REST API endpoints via CentronRestService
- SignalR for real-time updates

### Authentication
- JWT token validation
- Role-based access control
- User rights constants (UserRightsConst.cs)

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**Analysis Source**: USE_CASES_CENTRON_NEXUS.md
**Last Updated**: 2025-11-24
**Total Documented**: 23 fully implemented + 11 partial/planned modules