Blueprint for Database Design

The UML class diagram serves as the foundation for relational database design by providing a detailed representation of classes, relationships, and multiplicities required for the conversion process.

Mapping Classes to Tables

Each class in the UML diagram corresponds to a table in the relational database. The attributes of the classes become the fields of the tables, and each class should have a primary key to uniquely identify records.

Handling Relationships

Foreign keys are used to implement relationships between tables. These foreign keys reference the primary key of another related table. Many-to-many relationships (e.g., between raw materials and finished products) require the creation of junction tables to link the related records.

Database Implementation Steps

• Determine data requirements: Review documents to identify specific information needs.

• Plan tables and fields: Specify data types, field sizes, and keys for each table.

• Assign primary and foreign keys: Ensure referential integrity through appropriate key assignments.

• Use software tools such as Microsoft Access for database creation and to implement relationships among tables.

Customization Based on Business Needs

The example discusses Sunset Graphics, illustrating adjustments made to align with specific business practices. For instance:

• Adding equipment operations events to track equipment usage.

• Modifying the diagram to reflect both actual and planned usage of resources.

This process ensures the database is properly aligned with the operational needs and accounting requirements of the conversion process​​.