Exam 7: Structuring System Process Requirements

A(n)________ diagram shows the conditional logic for the sequence of system activities needed to accomplish a business process.

________ is NOT one of the levels of details suggested by Cockburn.

DFDs do not provide notation but illustrate important concepts about the movement of data between manual and automated steps.

What are the guidelines for drawing DFDs?

Explain the three parts of a decision table.

Both the white and ________ levels provide a summary of the use case goals.

A ________ is used in both conventions for sources/sinks and has a name that states what the external agent is,such as Customer,Teller,EPA Office,or Inventory Control System.

________ is the process of discovering discrepancies between two or more sets of DFDs or discrepancies within a single DFD.

DFDs do a very good job of representing time.On a given DFD,there is an indication of whether a data flow occurs constantly in real time,once per week,or once per year.There is also an indication of when a system would run.

________ are common in concurrent,real-time systems,in which several objects operate in parallel.

Data flow diagrams are non-versatile diagramming tools and consist of only three symbols.

A ________ in business process modeling is a way to visually encapsulate a process.

A(n)________ in business process modeling is an action that must take place for a process to be completed.

The inputs to a process must be sufficient to produce the outputs (including data placed in data stores)from the process.Thus,all outputs can be produced,and all data in inputs move somewhere: to another process or to a data store outside the process or onto a more detailed DFD showing a decomposition of that process.

According to Cockburn's template,________ are those things the system must ensure are true before the use case can start.

A data flow has multiple directions of flow between symbols.It may flow in both directions between a process and a data store to show a read before an update.

What do each of the four symbols in a DFD represent? Explain the terms used in describing the processes in the DFD.

What is typically included in a data flow repository?

________ DFD development recognizes that requirements determination and requirements structuring are interacting,not sequential,subphases of the analysis phase of the SDLC.

A(n)________ in business process modeling is a decision point.