... 14 Activity 4. 1: Deriving Entities and Attributes from Data Requirements Exercise 1: Identifying Data Entities In this exercise, you will identify data entities from a set of use cases, data ... Maintenance 16 Activity 4. 1: Deriving Entities and Attributes from Data Requirements Use the flip chart provided by the instructor to list the attributes for each of your assigned entities Next, ... instructor Entities: Employee, Invoice, Timesheet, Client, Contract, Job, Vehicle Next, you will present your findings to the class Activity 4. 1: Deriving Entities and Attributes from Data Requirements...