audio_guide [wiki.roman-halliday.com]

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====== Existing Sample Apps & Projects ======

===== Open source audio guide - react app =====

  * https://nordicmuseum.github.io/Nordic-Museum-Audio-Guide/


===== Open Source Audio Guide - static web app =====

  * https://labs.acmi.net.au/an-open-source-static-museum-audio-guide-4c5cd83dbdcb
  * https://github.com/ACMILabs/static-museum-audio-guide

Example in action:
  * https://audio.nationalgalleries.org/hill-and-adamson/stops/3/
  * http://www.example.com/static-museum-audio-guide/stops/2/

===== No Code Solution (limited free) =====

Not open source but limited free

  * https://www.glideapps.com/templates/audio-tour-2l

===== Flexible Approach =====

Using QR codes 
  * https://conserv.io/blog/building-zero-cost-audio-tours/

====== Framework & Design Ideas ======


Describable 
  - parent (museum)
  - child (room)
  - child (item)

Each has 
  - name 
  - ID
  - parent 
  - owner?

Media
  - type
  - name 
  - ID
  - order
  - link
  - content (text)
  - content (binary)
  - file name (original)

International Media 

  - ID
  - media ID
  - language 
  - link
  - content (text)
  - content (binary)
  - file name (original)
  - 


Functions
  - translate 
  - transcripts 
  - text to audio
  - something else accessibility 
  - permissions, allocate people to modify object and children (limit type of children creation)

Integration and features 
  - maps (street map)
  - plan (museum layout) links to rooms/objects in them

Monetisation 
   - hosting (media) video 
   - AI (translation, generation, transcript)
   - translation service (POA) - language access to translator 
   - charging for usage of guide (payment processing/revenue share)
   - Guide platform - like walking guides 
   - usage limitations? Data volume? Number of consuming devices?

Monetisation idea
  * https://voicemap.me/tour/kiev/memories-of-a-revolution


====== Specification & Architecture ======
Generated by Gemini 2:


You're looking to build a multi-tenant web application for museums to manage their media guides. Here's a potential architecture breakdown, focusing on key components and considerations:
I. Core Requirements:
 * User Management:
   * Account creation and authentication for all users (museum administrators, room managers, general users - though the prompt doesn't explicitly mention general users accessing the guides directly, it's worth considering for future expansion).
   * Role-based access control (RBAC) to manage permissions (e.g., museum admin, room manager).
 * Museum Management:
   * Creation and management of museum profiles (name, description, etc.).
   * Association of users with specific museums (primarily administrators).
 * Media Guide Management:
   * Creation and management of media guides within a museum context.
   * Potentially versioning of media guides.
 * Room Management:
   * Creation and management of rooms within a museum.
   * Association of media components (text, audio, video, images) with rooms.
   * Assignment of room managers (users with specific permissions for a room).
 * Object Management:
   * Creation and management of objects within a room.
   * Association of media components with objects.
 * User Nomination and Permissions:
   * Mechanism for museum administrators (and possibly room managers, depending on the desired level of control) to nominate other registered users to manage specific rooms and their objects.
   * Clear definition and enforcement of permissions for different roles at the museum, room, and object levels.
 * Media Storage:
   * Secure and scalable storage for various media types.
II. Architectural Components:
Here's a layered approach to consider:
 * Presentation Layer (Frontend):
   * Technology: React, Angular, Vue.js, or traditional server-rendered HTML/CSS/JavaScript.
   * Responsibility:
     * User interface for account creation, login, and navigation.
     * Forms and workflows for managing museums, media guides, rooms, and objects.
     * Displaying media content to end-users (if applicable).
     * Handling user interactions and making API calls to the backend.
     * Implementing role-based views and functionalities.
 * Application Layer (Backend - API):
   * Technology: Python (Django/Flask), Node.js (Express), Ruby on Rails, Java (Spring), Go.
   * Responsibility:
     * Handling API requests from the frontend.
     * Authentication and authorization.
     * Business logic for managing entities (museums, guides, rooms, objects, users, permissions).
     * Data validation and processing.
     * Interacting with the Data Access Layer and Media Storage.
     * Implementing the user nomination and permission management logic.
 * Data Access Layer:
   * Technology: Object-Relational Mapper (ORM) like Django ORM, SQLAlchemy, Sequelize, Hibernate, or a direct database interaction layer.
   * Responsibility:
     * Abstracting database interactions from the Application Layer.
     * Defining data models (schemas) for all entities.
     * Performing CRUD (Create, Read, Update, Delete) operations on the database.
     * Ensuring data integrity.
 * Data Storage:
   * Technology: Relational Database (PostgreSQL, MySQL), NoSQL Database (MongoDB), or a combination.
   * Considerations:
     * Relational Databases: Good for structured data and relationships between museums, rooms, objects, and users. Enforce data integrity through schemas and foreign keys.
     * NoSQL Databases: Can be more flexible for evolving data structures, especially for media metadata. Might require more application-level management of relationships.
     * Recommendation: A relational database like PostgreSQL or MySQL is likely a good starting point due to the structured nature of the data and the relationships between entities.
 * Media Storage:
   * Technology: Cloud-based object storage (AWS S3, Google Cloud Storage, Azure Blob Storage).
   * Responsibility:
     * Storing media files (images, audio, video).
     * Providing secure access to media files.
     * Scalability and cost-effectiveness.
   * Considerations:
     * Generating and storing thumbnails and different resolutions for images and videos.
     * Content Delivery Network (CDN) for faster delivery of media to end-users (if applicable).
 * Authentication and Authorization Service:
   * Technology: Could be integrated into the Application Layer or a dedicated service (e.g., OAuth 2.0 provider).
   * Responsibility:
     * Handling user registration, login, and session management.
     * Verifying user identity.
     * Enforcing access control based on user roles and permissions.
III. Key Design Considerations:
 * Multi-Tenancy:
   * Database Schema Approach: Each museum's data can be isolated in its own schema within a single database or in separate databases. This provides strong data isolation.
   * Shared Database with Tenant ID: All museum data resides in the same tables, but each record is associated with a museum_id. This is simpler to manage but requires careful querying and can have implications for data isolation and scalability.
   * Recommendation: Starting with a shared database with a museum_id is often easier to implement initially. If you anticipate a large number of museums or strict isolation requirements, consider the database schema approach later.
 * Role-Based Access Control (RBAC):
   * Define clear roles (e.g., museum_admin, room_manager).
   * Associate permissions with each role (e.g., museum_admin can create rooms, room_manager can edit objects in their assigned rooms).
   * Implement logic in the Application Layer to enforce these permissions based on the logged-in user's role and the context of the action.
 * User Nomination and Permission Granting:
   * Implement a mechanism for authorized users (e.g., museum admins) to nominate other users for specific roles within their museum (e.g., room manager for a specific room).
   * Store these role assignments and the scope (e.g., user X is a room_manager for room Y in museum Z).
   * Ensure that the authorization logic checks these specific assignments in addition to general roles.
 * Data Relationships:
   * Clearly define the relationships between entities in your data model (e.g., a museum has many rooms, a room has many objects, an object can have multiple media components). Use foreign keys in a relational database to enforce these relationships.
 * API Design:
   * Use a consistent and well-documented API (e.g., RESTful API using JSON).
   * Implement proper authentication and authorization for all API endpoints.
   * Consider versioning your API to handle future changes.
 * Scalability:
   * Design your application to handle increasing numbers of museums, users, and media content.
   * Consider using a load balancer for the Application Layer.
   * Choose scalable database and media storage solutions.
   * Implement caching mechanisms to improve performance.
 * Security:
   * Implement secure authentication and authorization mechanisms.
   * Protect against common web vulnerabilities (e.g., SQL injection, XSS).
   * Securely store user credentials (e.g., using hashing and salting).
   * Regularly audit your application for security vulnerabilities.
 * Testing:
   * Implement comprehensive unit, integration, and end-to-end tests to ensure the reliability of your application.
 * Deployment:
   * Choose a suitable deployment environment (e.g., AWS, Google Cloud, Azure).
   * Implement a CI/CD (Continuous Integration/Continuous Deployment) pipeline for automated building, testing, and deployment.
IV. Workflow Example (User Nominating a Room Manager):
 * A museum administrator logs into the frontend.
 * They navigate to the "Manage Rooms" section for their museum.
 * They select a specific room.
 * They initiate the "Nominate Manager" action for that room.
 * A form appears where they can search for existing users by email or username.
 * They select a user and confirm the nomination.
 * The frontend sends an API request to the backend (e.g., /api/museums/{museum_id}/rooms/{room_id}/nominate-manager).
 * The backend API endpoint:
   * Authenticates and authorizes the requesting user (must be a museum admin for this museum).
   * Validates the nominated user exists.
   * Creates a record in a permissions table or similar structure, associating the nominated user with the room_manager role for the specific room in the specific museum.
   * Potentially sends a notification to the nominated user.
 * The frontend receives a success response and updates the UI.
V. Technology Stack Considerations (Example):
 * Frontend: React with TypeScript, Redux/Context API for state management, Material UI/Chakra UI for components.
 * Backend: Python with Django REST Framework for the API, PostgreSQL for the database.
 * Media Storage: AWS S3 with CloudFront CDN.
 * Authentication: Django's built-in authentication or a library like Django Allauth.
 * Task Queue (Optional): Celery for background tasks (e.g., processing large media files).
 * Containerization: Docker for packaging the application.
 * Orchestration: Kubernetes or Docker Compose for managing containers.
VI. Future Considerations:
 * Analytics: Track usage of media guides.
 * Accessibility: Ensure the platform is accessible to users with disabilities.
 * Internationalization (i18n) and Localization (l10n): Support multiple languages.
 * Offline Access: Allow users to download media guides for offline use.
 * Integration with other museum systems: Collection management systems, ticketing systems, etc.
By carefully considering these architectural components and design principles, you can build a robust and scalable web application to meet the needs of museums for managing their media guides. Remember to iterate and adapt your design as your understanding of the requirements evolves.