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Questions and Answers
In a data flow diagram, what is the primary purpose of processes?
In a data flow diagram, what is the primary purpose of processes?
What is another term for an 'associative entity' in data modeling?
What is another term for an 'associative entity' in data modeling?
What does a zero on a relationship line indicate in an entity-relationship diagram?
What does a zero on a relationship line indicate in an entity-relationship diagram?
What is the significance of underlined attributes on an entity-relationship diagram?
What is the significance of underlined attributes on an entity-relationship diagram?
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Which management group typically has a high need for historical data and predictive information?
Which management group typically has a high need for historical data and predictive information?
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Study Notes
Data Flow Diagrams
- Processes on a data flow diagram transform incoming data into outgoing information.
Entity-Relationship Diagrams
- An associative entity is also referred to as a gerund.
- A zero on a relationship line indicates that none is possible for the next relationship.
Entity Attributes
- Attributes that are underlined on an entity-relationship diagram can be searched for.
Management Levels
- Middle management has a high need for historical data along with information that allows prediction of future events.
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Description
Test your knowledge on processes in data flow diagrams, associative entities, and relationship lines in entity-relationship diagrams with this quiz.
