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The following assignment is based upon Service Request SR-ht-003, "Develop a Design for a Fleet Truck Maintenance Database."

You only need to describe assumptions, changes, and additions you make to the documentation provided in the assignment. You do not need to build a database. You are creating an entity relationship diagram. You cannot build the tables in Access and then print out the Access ERD. You need to build an ERD from scratch so you know how. It is an integral part of data base concepts. For this assignment you do not need to figure out data types and field lengths or anything like that. Your ERD will show tables and entities and how they relate to each other via primary and foreign keys. Visio can be used to complete the diagram.

In Masri's article, the use of icons in entity-relationship diagrams results in a better understanding of complex diagrams by users because cognitive load theory and the theory of multimedia