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Research and explain with your own words Chen’s entity-relationship data (ERD) model and the process of normalization...

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Operations Management

Research and explain with your own words Chen’sentity-relationship data (ERD) model and the process ofnormalization from first normal form to third normal form. Discusswhat types of information are stored in your sector (or sector ofinterest) and what types of information are shared with a thirdparty (if any).

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In an entity relationship model entity can be an object or concept or people about which we want to store information It is denoted in rectangles There can be a weak entity which actually depends upon the existence of main entity as it cannot be identified with its own attributes An action which is represented in diamond shape depicts the relationship between two entities An entity or relationship can have several characteristics or attributes which are shown in oval shape Peter Chen is credited with developing this ER model for database design For example a developer is an entity who creates a website and hence develoler represented in rectange The action he does is    See Answer
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