Designing data models for a task management system app where users can create projects, add members to those projects, and assign tasks to project members involves several interconnected data entities. Here's a detailed breakdown of the data models you can use:
User:
Fields:
User ID (unique identifier)
Username
Email
Password (encrypted)
Profile Picture
Other user-related information (e.g., name, bio, etc.)
This model represents the app's users and contains their personal information.
Project:
Fields:
Project ID (unique identifier)
Project Name
Description
Created By (User ID of the project creator)
Creation Date
Deadline (optional)
Other project-related information
This model represents the projects created within the app. Each project is associated with a user who is its creator.
ProjectMember:
Fields:
Member ID (unique identifier)
User ID (the member)
Project ID (the project they're a member of)
Role (e.g., Admin, Member)
Join Date
Other member-related information
This model links users to specific projects and defines their roles within those projects. A user can be a member of multiple projects, each with a different role.
Task:
Fields:
Task ID (unique identifier)
Task Name
Description
Project ID (the project it belongs to)
Assigned To (User ID of the member responsible for the task)
Created By (User ID of the task creator)
Due Date
Status (e.g., To-Do, In Progress, Completed)
Priority (e.g., High, Medium, Low)
Other task-related information
This model represents the tasks that users create within projects. Tasks are assigned to specific project members.
With these data models, you can create relationships and implement various functionalities:
Users can create and manage their accounts.
Users can create projects and become project owners.
Users can invite other users to their projects, specifying their roles (e.g., admin or member).
Users can create tasks within projects, assign them to specific project members, and track task statuses and due dates.
Users can view their projects, see project members, and manage tasks within those projects.
Implementing these data models requires a database system and an API or backend code to handle data storage and interactions. You can use relational databases (e.g., MySQL, PostgreSQL) or NoSQL databases (e.g., MongoDB) depending on your app's requirements and scalability. Additionally, you'll need to define API endpoints for creating, updating, and querying these data models.
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