Describe an E-R Diagram

question 39

Essay

Describe an E-R diagram.

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Definitions:

DSS

Decision Support System, a computerized program used to support decision-making activities in an organization.

Batch Processing

Transaction processing system (TPS) that processes data in batches at fixed periodic intervals.

OLAP

Online Analytical Processing, a category of software tools that provide analysis of data stored in a database for complex queries and analyses.

OLTP

Online Transaction Processing, a system that manages database transactions in real-time, commonly used in banking, online shopping, etc.