Data Model case study week 1 - IST-7000 Data Management Week 1 Databasesearch Assignment Data Development Team Name_Mahmudul Hasan Please review the

Data Model case study week 1 - IST-7000 Data Management...

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IST-7000 Data Management - Week 1 – Databasesearch Assignment – Data Development Team Name:_Mahmudul Hasan Please review the attached data model and answer the following questions. Please provide all associated links and references: 1. Please provide definitions of each of the following components: a. Entities b. Attributes c. Relationships d. Primary keys Attributes Entity Relationshi Primary key
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Ans 1. Definitions of each of the following components- Entities: An entity is an existing thing or real thing. It is an object that is involved in the enterprise and that be distinguished from other objects. Attributes: Attribute describes one aspect of an entity type; an attribute is a changeable property or characteristic of some component of a program that can be set to different values. Relationships: Connects two or more entities into an association/relationship. Primary keys: The candidate key chosen to be used for identifying entities and accessing records.
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  • Spring '15
  • Alexander
  • Data Management, Entity-relationship model, Data Development Team, Customer Management Systems

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