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Understaznding Peter Chen Essay

652 words - 3 pages

Understanding Peter Chen’s: The Entity Relationship Model
1106IFSM4106382
Professor Joseph Walker

Understanding Peter Chen’s: The Entity Relationship Model
In a database, there is a starting point in making your database perform correctly. An Entity-Relationship Model is an actual illustration of structured data from a top-down approach to the database. The end product of the modeling process is an entity-relationship diagram. In the first stage of information system design you use a model during the precondition study to describe information needs or the type of information that is stored in the database. The data model can be used to describe any overview of used terms and their ...view middle of the document...

These include objects, inheritance, and several difference forms of an object. Our book indicates that an “OODM reflects a very different way to define the use of entities. Unlike the entity in ERDM, an object includes information about relationships between the facts with the object, as well as the information about its relationship with other objects.” (Coronel, Morris, & and Rob, 2011)

Object Oriented Data Model (Burleson Enterprise, 1996-2011)

Dr. Chen introduces the entity-relationship model using a framework of multilevel views of data. There can be identified four levels of views of data. The entity relationship model is mainly concerned with the first two levels. The first level deals with information concerning entities and relationships that exists in our minds. The second level deals with information structure concerning the organization of information in which entities and relationships are represented by data.
The Chen model is especially useful to...

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