What are entity-relationship diagrams and how are they used? What symbol is used in a relationship? What is an associative entity? Provide an example. Explain the difference between a LAN and a WAN

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What are entity-relationship diagrams and how are they used? What symbol is used in a relationship? What is an associative entity? Provide an example. Explain the difference between a LAN and a WAN Explain the difference between an operational environment and a test environment? What is a release methodology? Why is version control important? Define a repository, and explain its role in the systems development process Note: include in-text citation. At least one page for each question. Book used in this course for your reference: SYSTEMS ANALYSIS & DESIGN (E-BOOK) Ed:11 Yr:17

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