Exam 7: Structuring System Process Requirements

Context DFD is one of the deliverables for process modeling.

An activity diagram cannot be used to ________.

A level-1 diagram is a DFD that represents a system's major processes,data flows,and data stores at a high level of detail.

A(n)________ in a data flow means that exactly the same data goes from a common location to two or more different processes,data stores,or sources/sinks.(This usually indicates different copies of the same data going to different locations.)

A(n)________ only transfers control from the sender to the recipient without describing the details of the communication.

A ________ is a DFD that represents a system's major processes,data flows,and data stores at a high level of detail.

A data flow is data that move together,so it can be composed of many individual pieces of data that are generated at the same time and that flow together to common destinations.

A data flow consisting of several sub-flows on a level-n diagram can be split apart on a level-0 diagram for a process that accepts this composite data flow as input.

A data flow to a data store means ________.

A(n)________ arises when one use case uses another use case and is shown diagrammatically as a dotted-line arrow pointed toward the use case that is being used.

Use cases written at the ________ level focus on user goals.

What are the procedures when constructing a decision table?

A data flow to a data store means retrieve and a data flow from a data store means change.

When you decompose a DFD from one level to the next,there is a conservation principle at work and we must conserve inputs and outputs to a process at the next level of decomposition.

________ is/are NOT a deliverable for process modeling.

A ________ lists what it takes to satisfy stakeholders if the use case is completed successfully.

The concept of DFD ________ refers to whether or not the depiction of the system shown at one level of a nested set of DFDs is compatible with the depictions of the system shown at other levels.

A data flow has ________ direction(s)of flow between symbols.It may flow in both directions between a process and a data store to show a read before an update.

According to the DFD conventions,the data flow is always depicted by a(n)________.

Describe the process in knowing when to stop decomposing a DFD.