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There are two types of data flow diagrams, each with its own set of pros and cons. The significance of MetaData in a data warehouse and why it is used.

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

Problem 1PE

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Do the two forms of data flow diagrams vary in any significant way, if at all? In a data warehouse, why is MetaData so important?
Explain the various layers of the Data Flow Diagram (DFDs).
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There are two distinct forms of flow charts: logical data flow diagrams and physical data flow diagrams. Due to its indispensable nature, MetaData is the most vital component of every data warehouse.