Given the case assignment, do items 1 – 4
1. Draw a partial REA diagram of the XYZ Company’s revenue cycle to model there events: taking customer orders, deliveries, and the use of vehicles. Be sure to include cardinalities
2. Create a set of tables (either on paper or in a relational DBMS to which you have access) to implement the REA model you developed for the XYZ company, specifying the primary key(s) for each table, any foreign key(s) and add at least one other attribute in each table.
To complete items 1 and 2, you will need to follow the steps below:
1. Understand the REA Model: The REA (Resources, Events, Agents) model is an accounting information systems framework that represents the key components of an organization's business activities. It focuses on the relationships between resources, events, and agents.
2. Identify the Resources, Events, and Agents: In this case, the main resources are customer orders, deliveries, and vehicles. The events are taking customer orders and deliveries, while the agents could be customers and employees responsible for managing the vehicles.
3. Determine Cardinalities: Cardinalities represent the relationships between the entities in the diagram. For example, how many customer orders can be associated with a single delivery, or how many deliveries can be made for a particular vehicle. You need to define these cardinalities based on the specific requirements of the XYZ Company.
4. Draw the Partial REA Diagram: Using a diagramming tool or pen and paper, map out the resources, events, and agents, and connect them with appropriate cardinalities. Remember to include primary keys, foreign keys, and additional attributes based on the specific requirements of the XYZ Company.
5. Create Tables for Implementation: Once you have the REA diagram, you can create tables to implement the model. Each entity in the diagram becomes a table. Identify the primary key(s) for each table, any necessary foreign keys, and include at least one other attribute in each table. The primary key uniquely identifies each record, while foreign keys establish relationships between tables.
6. Implement the Tables: You can either create these tables on paper or use a relational DBMS (Database Management System) where you have access. If using a DBMS, you can create the tables and specify the necessary data types, constraints, and relationships based on the REA diagram.
By following these steps, you should be able to complete items 1 and 2 of the given case assignment.