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Questions and Answers
What is a data dictionary?
What is a data dictionary?
- A method for analyzing data flows and data stores of data-oriented systems.
- A reference containing data about data on all processes, stores, flows, structures, and logical and physical elements within the system being studied. (correct)
- A detailed description of only the logical elements within the system being studied.
- A record of data about data used exclusively in database management.
What does a data dictionary contain?
What does a data dictionary contain?
- Details about data maintenance and delivery schedules.
- Information about procedural logic, screen and report design, and project management.
- List of data repositories, project requirements, and final system deliverables.
- List of entity, attribute, and relationship types, aliases, processes using data, and data access methods. (correct)
What is included in a data repository?
What is included in a data repository?
- Details about data maintain by the system, procedural logic, and screen and report design.
- Information about data maintained by the system, procedural logic, and data relationships. (correct)
- Data codes and symbols, possible range of values, and ownership of the data.
- Delivery schedules, project management information, and project requirements.
How are data flow diagrams related to data dictionaries?
How are data flow diagrams related to data dictionaries?
What is the primary purpose of a data dictionary?
What is the primary purpose of a data dictionary?
Flashcards
Data Dictionary
Data Dictionary
A reference that defines all data elements within a system, including their structure, meaning, relationships, and processing methods.
What's in a Data Dictionary?
What's in a Data Dictionary?
Lists of entities, attributes, relationships, aliases, processes, data access methods, and other data-related elements.
Data Repository
Data Repository
A central repository that stores information about data, including its structure, relationships, and processing logic.
Data Flow Diagrams and Data Dictionaries
Data Flow Diagrams and Data Dictionaries
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Purpose of a Data Dictionary
Purpose of a Data Dictionary
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Study Notes
Data Dictionary
- A data dictionary is a collection of metadata that defines the structure, organization, and content of a database or file.
- It contains information about the data, such as its meaning, relationships, and format.
Data Repository
- A data repository is a central location where data is stored and managed.
- It includes a collection of data, data dictionaries, and other metadata that describes the data.
Data Flow Diagrams
- Data flow diagrams (DFDs) are visual representations of data flow and processing within a system.
- They are related to data dictionaries because they use the metadata from the data dictionary to describe the data flow and processing.
Primary Purpose of a Data Dictionary
- The primary purpose of a data dictionary is to provide a centralized documentation of the data structure, making it easier to understand, maintain, and use the data.
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Description
Test your knowledge about data dictionaries with this quiz. Explore the key concepts and definitions related to data dictionaries, including their purpose and components.
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