5 Questions
In a data flow diagram, what is the primary purpose of processes?
To transform incoming data into outgoing information
What is another term for an 'associative entity' in data modeling?
Gerund
What does a zero on a relationship line indicate in an entity-relationship diagram?
That none is possible for the next relationship
What is the significance of underlined attributes on an entity-relationship diagram?
They indicate that the attributes can be searched for
Which management group typically has a high need for historical data and predictive information?
Strategic management
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.
Test your knowledge on processes in data flow diagrams, associative entities, and relationship lines in entity-relationship diagrams with this quiz.
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