house architecture program relationship diagram

#HOUSE ARCHITECTURE PROGRAM RELATIONSHIP DIAGRAM SOFTWARE#

Typically, it represents records of entities and events monitored and directed by business processes, rather than the processes themselves. Some ER models show super and subtype entities connected by generalization-specialization relationships, and an ER model can be used also in the specification of domain-specific ontologies.Īn ER model is usually the result of systematic analysis to define and describe what data is created and needed by processes in an area of a business. Consequently, the ER model becomes an abstract data model, that defines a data or information structure which can be implemented in a database, typically a relational database.Įntity–relationship modeling was developed for database and design by Peter Chen and published in a 1976 paper, with variants of the idea existing previously, but today it is commonly used for teaching students the basics of data base structure.

#HOUSE ARCHITECTURE PROGRAM RELATIONSHIP DIAGRAM SOFTWARE#

In software engineering, an ER model is commonly formed to represent things a business needs to remember in order to perform business processes. A basic ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between entities (instances of those entity types). JSTOR ( November 2016) ( Learn how and when to remove this template message)Īn entity–attribute-relationship diagram for an MMORPG using Chen's notationĪn entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge.Unsourced material may be challenged and removed.įind sources: 'Entity–relationship model' – news

Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.

House architecture program relationship diagram