CISP Week 4 Assignment.docx - Running head WEEK 4...

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Running head: WEEK 4 ASSIGNMENT1Week 4 AssignmentAnna HollyDavenport UniversitySeptember 29, 2019
WEEK 4 ASSIGNMENT2To begin with, there are numerous of data models to create or edit Entity Relationship diagrams frequently. They are typically available at affordable cost and are very easy to use. “Entities might be customers, sales regions, products or orders” (Tilley, pg. 280) Generally they are available in packaged software and developed by specialty consultants. “An ERD provides anoverall view of the system and a blueprint for creating the physical data structures” (Tilley, pg. 280)Secondly, one of the available tools is Erwin. It is developed by computer associates. It isa computer software for Data Modeling. This software is used to prepare E-R diagrams, it keeps

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