TAILIEUCHUNG - Instructor Notes Module 4: Deriving a Logical Data Design

This module provides an in-depth discussion of logical data design. Students examine the relationship of logical data design to conceptual design. Logical entities, their attributes, and the relationships among them are extensively examined. Finally, students learn how to create a logical data model from entities, attributes, and relationships. | Instructor Notes Module 4 Deriving a Logical Data Design Introduction Presentation 90 Minutes Activities 45 Minutes This module provides an in-depth discussion of logical data design. Students examine the relationship of logical data design to conceptual design. Logical entities their attributes and the relationships among them are extensively examined. Finally students learn how to create a logical data model from entities attributes and relationships. After completing this module students will be able to Analyze data requirements to determine data entities and attributes. Analyze data entities and attributes to determine their relationships. Determine the cardinality and existence characteristics of a relationship. Create an entity relationship diagram. Materials and Preparation This section provides you with the materials and preparation needed to teach this module. Materials To teach this module you will need the following materials Microsoft PowerPoint file Module 4 Deriving a Logical Data Design Activity Deriving Entities and Attributes from Data Requirements Activity Creating a Logical Data Model Preparation To prepare for this module you should Read all materials for this module. Complete the activities. 2 Instructor Notes Module 4 Deriving a Logical Data Design Activities Activity Deriving Entities and Attributes from Data Requirements This activity provides students with a real-world example of use case requirements that they will analyze to identify entities attributes and relationships. Students will work individually on the first exercise to identify entities. After the first exercise you should lead a class discussion so that students can come to a consensus about the entities. In the second exercise assign students to small groups and give each group two entities. Each group will identify attributes for their entities. Have groups list their attributes on flip charts that they will share with the class when they are done. At

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