Exam 9: Process Modeling

A repetition structure specifies that a set of steps should be repeated based on some stated condition.

A(n) ________________________________ represents an input of data to a process or the output of data from a process.

Logical models show how a system is implemented.

A(n) ________________________ data flow is a data flow that consists of other data flows. They are used to combine similar data flows on high-level data flow diagrams to make those diagrams easier to read.

Structured English allows the analyst to define new terms as the process is being defined.

A function is a unit of work that must be completed as a unit or whole.

Transform is a synonym for a ________________________.

Blocking and indentation should be used in Structured English to set off the beginning and ending of constructs to enhance readability.

In data flow diagrams:

Structured English is a language and syntax, based on the relative strengths of structured programming and natural English, for specifying the underlying logic of elementary processes on process models such as data flow diagrams.

_______________________________ models show what a system is or does, not how it does it. They are implementation independent.

Data Flow Diagrams are a kind of flowchart.

A(n) ___________________________ is a logical unit of work that must be completed as a whole

Data conservation is sometimes called _____________________ the process.

A(n) ____________________________ is another name for a decomposition diagram.

A decomposition diagram is also called a hierarchy chart.

A diverging data flow is one that merges multiple data flows into a single data flow.

A diagram that shows the system broken into its component sybsystems:

A(n) ______________________________ defines a person, organization unit, other system or other organization that lies outside the scope of the project but that interacts with the system being studied.

Data flows can be described in terms of the following types of data structures: a sequence or group of data attributes that occur one after another; the selection of one or more attributes from a set of attributes; and, the repetition of one or more attributes.