Based on the discussions above, answer each questions and / or statements briefly. Write on the spaces provided below

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Based on the discussions above, answer each questions and / or statements briefly. Write on the spaces provided below. 1. What is a process model? What is a data flow diagram? Are the two related? If so how? 2. Distinguish between logical process models and physical process models. 3. Define what is meant by a data flow in a process model. How should a data flow be named? What information about a data flow should be stored in the CASE repository?
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