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2. Identify business rules 3a. Identify entities 3b. Identify relationships between entities 3g. Identify and add all other attributes 3. For each business rule, 3f. Draw key- based ERD create a small ERD (eliminate many-to- many and add keys) capturing only that single rule 3c. Draw basic ERD 3e. Identify primary and 3d. Add cardinality and

2. Identify business rules 3a. Identify entities 3b. Identify relationships between entities 3g. Identify and add all other attributes 3. For each business rule, 3f. Draw key- based ERD create a small ERD (eliminate many-to- many and add keys) capturing only that single rule 3c. Draw basic ERD 3e. Identify primary and 3d. Add cardinality and

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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You are required to combine the small ERDS from the 6 business rules as seen in your student manual into one ERD. The purpose of this exercise is to allow you to work through the process of combining small ERDS from separate business rules into a single final ERD. Make sure to follow the steps as seen on Figure 14 in your student manual. You may use MS Visio or any other drawing software to complete this task. Submission method: Submit a PDF document.
Transcribed Image Text:You are required to combine the small ERDS from the 6 business rules as seen in your student manual into one ERD. The purpose of this exercise is to allow you to work through the process of combining small ERDS from separate business rules into a single final ERD. Make sure to follow the steps as seen on Figure 14 in your student manual. You may use MS Visio or any other drawing software to complete this task. Submission method: Submit a PDF document.
2. Identify business rules 3a. Identify entities 3g. Identify and add all other attributes 3b. Identify relationships between entities 3. For each business rule, 3f. Draw key- based ERD create a small ERD 3c. Draw basic ERD (eliminate many-to- many and add keys) capturing only that single rule 3e. Identify primary and foreign keys 3d. Add cardinality and participation 4. Combine small diagrams into a single ERD 4a. Find the most frequently used entities 5. Review 4b. Position these entities centrally and revise 4c. Start adding other entities and relationships, making sure you add any foreign keys (numbered) as needed ERD 4d. Add multiplicities and relationship names at the end to avoid having to move these around Figure 14. ERD Development Process (Pellissier, 2019) A step-by-step process for creating an ERD has been described by several sources including (Dalbey, 2005). The process involves identifying the entities and relationships and adding the details around multiplicities and attributes. If you follow the steps, you will end up with a good diagram.
Transcribed Image Text:2. Identify business rules 3a. Identify entities 3g. Identify and add all other attributes 3b. Identify relationships between entities 3. For each business rule, 3f. Draw key- based ERD create a small ERD 3c. Draw basic ERD (eliminate many-to- many and add keys) capturing only that single rule 3e. Identify primary and foreign keys 3d. Add cardinality and participation 4. Combine small diagrams into a single ERD 4a. Find the most frequently used entities 5. Review 4b. Position these entities centrally and revise 4c. Start adding other entities and relationships, making sure you add any foreign keys (numbered) as needed ERD 4d. Add multiplicities and relationship names at the end to avoid having to move these around Figure 14. ERD Development Process (Pellissier, 2019) A step-by-step process for creating an ERD has been described by several sources including (Dalbey, 2005). The process involves identifying the entities and relationships and adding the details around multiplicities and attributes. If you follow the steps, you will end up with a good diagram.
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