... entity. Before You Begin This activity will be completed individually, with a class discussion to follow. Time to complete this activity: 20 minutes 22 Activity 5. 1: Identifying Keys in the ... Activity 5. 1: Identifying Keys in the Logical Model In this activity, you will identify primary, foreign, and (if necessary) ... under the attributes used to define the composite key, and then label their types as Primary or Foreign. Next, you will discuss your answers with the class. Activity 5. 1: Identifying Keys in...