Cloud-based RMS Design and Schema for Kazungula District, Zambia

1. Design or generate a system algorithm for the Cloud-based RMS
2. Creating a ERD or framework for a database that includes user authentication and interactions requires defining the key entities, their attributes, and the relationships between system users for cloud-based RMS for Kazungula District, Zambia. [Download a detailed ERD diagram
3. Show the schema design for Cloud-based RMS for Kazungula District, Zambia.

Sure, let's break down the tasks step-by-step:

1. System Algorithm for Cloud-based RMS

A cloud-based Records Management System (RMS) for Kazungula District, Zambia, would involve several key components and processes. Here's a high-level algorithm:

Step-by-Step Algorithm:

1. User Authentication:

   • Input: User credentials (username and password).
   • Process: Validate credentials against the database.
   • Output: Authentication token if valid, error message if invalid.

2. User Authorization:

   • Input: Authentication token.
   • Process: Check user roles and permissions.
   • Output: Access granted or denied to specific resources.

3. Record Creation:

   • Input: Record details (e.g., title, description, date, attachments).
   • Process: Validate input data, store record in the database.
   • Output: Confirmation message, record ID.

4. Record Retrieval:

   • Input: Query parameters (e.g., record ID, date range, keywords).
   • Process: Search database, retrieve matching records.
   • Output: List of records.

5. Record Update:

   • Input: Record ID, updated details.
   • Process: Validate input data, update record in the database.
   • Output: Confirmation message.

6. Record Deletion:

   • Input: Record ID.
   • Process: Validate permissions, delete record from the database.
   • Output: Confirmation message.

7. Audit Logging:

   • Input: User actions (e.g., create, update, delete).
   • Process: Log actions with timestamps and user details.
   • Output: Audit log entry.

8. Backup and Recovery:

   • Input: Scheduled time or manual trigger.
   • Process: Backup database to cloud storage.
   • Output: Backup confirmation.

2. Entity-Relationship Diagram (ERD)

Key Entities and Relationships:

1. User:

   • Attributes: UserID, Username, PasswordHash, Email, Role, CreatedAt, UpdatedAt.
   • Relationships: One-to-Many with Records, One-to-Many with AuditLogs.

2. Record:

   • Attributes: RecordID, Title, Description, DateCreated, DateUpdated, CreatedBy (UserID), UpdatedBy (UserID).
   • Relationships: Many-to-One with User (CreatedBy, UpdatedBy).

3. AuditLog:

   • Attributes: LogID, UserID, Action, Timestamp, RecordID (nullable).
   • Relationships: Many-to-One with User, Many-to-One with Record (nullable).

4. Backup:

   • Attributes: BackupID, BackupDate, BackupLocation, Status.
   • Relationships: None.

ERD Diagram:

+----------------+       +----------------+       +----------------+
|     User       |       |     Record     |       |   AuditLog     |
+----------------+       +----------------+       +----------------+
| UserID (PK)    |<----->| RecordID (PK)  |<----->| LogID (PK)     |
| Username       |       | Title          |       | UserID (FK)    |
| PasswordHash   |       | Description    |       | Action         |
| Email          |       | DateCreated    |       | Timestamp      |
| Role           |       | DateUpdated    |       | RecordID (FK)  |
| CreatedAt      |       | CreatedBy (FK) |       +----------------+
| UpdatedAt      |       | UpdatedBy (FK) |
+----------------+       +----------------+

+----------------+
|     Backup     |
+----------------+
| BackupID (PK)  |
| BackupDate     |
| BackupLocation |
| Status         |
+----------------+

3. Schema Design

User Table:

CREATE TABLE User (
    UserID INT PRIMARY KEY AUTO_INCREMENT,
    Username VARCHAR(50) NOT NULL UNIQUE,
    PasswordHash VARCHAR(255) NOT NULL,
    Email VARCHAR(100) NOT NULL UNIQUE,
    Role ENUM('Admin', 'User') NOT NULL,
    CreatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    UpdatedAt TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);

Record Table:

CREATE TABLE Record (
    RecordID INT PRIMARY KEY AUTO_INCREMENT,
    Title VARCHAR(255) NOT NULL,
    Description TEXT,
    DateCreated TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    DateUpdated TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    CreatedBy INT,
    UpdatedBy INT,
    FOREIGN KEY (CreatedBy) REFERENCES User(UserID),
    FOREIGN KEY (UpdatedBy) REFERENCES User(UserID)
);

AuditLog Table:

CREATE TABLE AuditLog (
    LogID INT PRIMARY KEY AUTO_INCREMENT,
    UserID INT,
    Action VARCHAR(50) NOT NULL,
    Timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    RecordID INT,
    FOREIGN KEY (UserID) REFERENCES User(UserID),
    FOREIGN KEY (RecordID) REFERENCES Record(RecordID)
);

Backup Table:

CREATE TABLE Backup (
    BackupID INT PRIMARY KEY AUTO_INCREMENT,
    BackupDate TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    BackupLocation VARCHAR(255) NOT NULL,
    Status ENUM('Pending', 'Completed', 'Failed') NOT NULL
);

This schema design and ERD should provide a solid foundation for a cloud-based RMS for Kazungula