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What is Entity-Relationship Data Model

Chapter 28
Encyclopedia of Decision Making and Decision Support Technologies
An entity-relationship data model is a model that represents database schema as a set of entities and the relationships among them.
Published in Chapter:
Development and Design Methodologies in DWM
James Yao (Montclair State University, USA), John Wang (Montclair State University, USA), Qiyang Chen (Montclair State University, USA), and June Lu (University of Houston - Victoria, USA)
Copyright: © 2008 |Pages: 9
DOI: 10.4018/978-1-59904-843-7.ch028
Abstract
Information systems were developed in early 1960s to process orders, billings, inventory controls, payrolls, and accounts payables. Soon information systems research began. Harry Stern started the “Information Systems in Management Science” column in Management Science journal to provide a forum for discussion beyond just research papers (Banker & Kauffman, 2004). Ackoff (1967) led the earliest research on management information systems for decision-making purposes and published it in Management Science. Gorry and Scott Morton (1971) first used the term decision support systems (DSS) in a paper and constructed a framework for improving management information systems. The topics on information systems and DSS research diversifies. One of the major topics has been on how to get systems design right.
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