WorksheetsData flow diagrams
Total questions: 16
Worksheet time: 10mins
What does this symbol represent?
Input
Output
Process
Decision
What does this symbol represent?
Input
Input / Output
Process
Output
What does this symbol represent?
Input
Output
Process
Decision
What does this symbol represent?
Process
Data Store
External Entity
Data Flow
What does this symbol represent?
Process
Data Store
External Entity
Data Flow
What does this symbol represent?
Process
Data Store
External Entity
Data Flow
What does this symbol represent?
Process
Data Store
External Entity
Data Flow
In data flow diagrams, circles can be used to represent processes that take data inflows and transform them to information outflows.
True
False
This is the symbol for
External entitles
Processes
Data stores
Data flows
In the data flow diagram (DFD), arrows represent which way the data goes (in or out); these are called...
External entitles
Processes
Data stores
Data flows
This is the symbol for
External entitles
Processes
Data stores
Data flows
This is the symbol for
External entitles
Processes
Data stores
Data flows
What is a Data Flow Diagram (DFD)?
A DFD is a graphical representation of how data flows through a business information system
A DFD is a flow chart that represent how data flows in a system
A DFD is is a way to structure an organization using different levels of authority and a vertical link, or chain of command, between superior and subordinate levels of the organization
A DFD is a chart showing how data is handled
A DFD is a graphical representation of how data flows through a business information system
What does the following describe?
A person, object or company. For example, shop assistant, customer, credit card processor
Entity
Process
Data store
Data flow
What does the following describe?
An action that is taken. For example, collect payment, ship product. It can be numbered.
Entity
Process
Data store
Data flow
What does the following describe?
It may be a database or a file. It is where data is stored and may be numbered.
Entity
Process
Data store
Data flow
