System Analysis & Design - Chapter 7
A) level-3 diagram
A DFD that is a result of three nested decompositions of a series of subprocesses from a process on a level-0 diagram defines a: A) level-3 diagram B) level-1 diagram C) level-2 diagram D) primitive diagram
D) level-n diagram
A DFD that is the result of n nested decompositions from a process on a level-0 diagram, is called: A) primitive diagram B) level-0 diagram C) context diagram D) level-n diagram
B) has only inputs
A black hole is one that: A) has only inputs B) has only outputs C) has not been exploded to show enough detail D) has insufficient inputs to produce the associated processes
C) data store
A computer-based file containing employee information is represented on a data flow diagram as a: A) data flow B) source C) data store D) process
A) extended entry
A condition that has more than two values is a(n): A) extended entry B) simple entry C) complex entry D) limited entry
C) level-0 diagram
A data flow diagram that represents a system's major processes, data flows, and data stores at a high level of detail refers to: A) context diagram B) level-1 diagram C) level-0 diagram D) level-00 diagram
A) statements
A decision table does not include: A) statements B) condition stubs C) action stubs D) rules
B
A decision table is simplified by: A) removing extended entries B) removing any rules with impossible actions C) removing simple entries D) removing any rules with static actions
D) data store
A file folder containing orders is represented on a data flow diagram as a: A) process B) source C) data flow D) data store
C) decision table
A matrix representation of the logic of a decision, which specifies the possible conditions for the decision and the resulting actions, defines a: A) structure chart B) state transition diagram C) decision table D) sequence diagram
B) has only outputs
A miracle process is one that: A) has only inputs B) has only outputs C) cannot be exploded further D) has insufficient inputs to produce the associated processes
B) decision table
A modeling technique that allows you to represent a set of conditions and the actions that follow from them in a tabular format best describes: A) data flow diagram B) decision table C) flowchart D) Structured English
C) verb phrase label
A process has a: A) pronoun label B) adjective label C) verb phrase label D) noun phrase label
D) source/sink
A square on a data flow diagram represents a: A) data store B) data flow C) process D) source/sink
B) source
A supplier of auto parts to our company is represented on a data flow diagram as a: A) process B) source C) data flow D) data store
B) event
All business processes begin and end with a(n): A) starting and termination points B) event C) activity D) gateway
A) decision
All of the following are symbols used in business process modeling EXCEPT: A) decision B) gateway C) event D) activity
B) data flow
An arrow on a data flow diagram represents a: A) data store B) data flow C) process D) source/sink
A) dash (-)
An indifferent condition is represented by a(n): A) dash (-) B) asterisk (*) C) exclamation point (!) D) pound sign (#)
C) 16
Assume the first condition has four values; the second condition has two values; the third condition has two values. How many rules will there be? A) 8 B) 7 C) 16 D) 24
B) 12
Assume the first condition has two values; the second condition has two values; the third condition has three values. How many rules will there be? A) 7 B) 12 C) 6 D) 11
D) 18
Assume we have three conditions. Condition one has two values; condition two has three values; condition three has three values. How many rules are needed? A) 8 B) 6 C) 5 D) 18
C) identifying selection criteria
Basic procedures for constructing a decision table do not include: A) listing all possible rules B) naming the conditions and the values each condition can assume C) identifying selection criteria D) simplifying the decision table
A) decouples the processe
By placing a data store between two processes, this: A) decouples the processes B) enables store and forward capabilities C) enhances the flow of data between the processes D) structures the processes
D) process
Calculating an employee's salary is represented on a data flow diagram as a: A) data flow B) source C) data store D) process
B) data store
Data at rest, which may take the form of many different physical representations, defines: A) source B) data store C) data flow D) process
A) process models
Data flow diagrams that concentrate on the movement of data between processes are referred to as: A) process models B) data models C) flow models D) flow charts
D) data flow
Data in motion, moving from one place in a system to another, defines: A) data store B) process C) source D) data flow
C) process modeling
Graphically representing the functions, or processes, which capture, manipulate, store, and distribute data between a system and its environment and between components within a system refers to: A) data modeling B) flow charting C) process modeling D) transition modeling
C) numbering
Guidelines for drawing DFDs include the following except for: A) completeness B) consistency C) numbering considerations D) timing considerations
B) violation of consistency
Having a level-1 diagram with no level-0 diagram is an example of a: A) violation of completeness B) violation of consistency C) gap D) structuring violation
B) the number of rules is reduced by condensing Rules 2, 4, and 6 into one rule
If Rules 2, 4, and 6 are indifferent conditions, then: A) Rules 2, 4, and 6 are eliminated from the matrix B) the number of rules is reduced by condensing Rules 2, 4, and 6 into one rule C) Rules 2, 4, and 6 will result in at least two additional rules being included in the matrix D) Rules 2, 4, and 6 have no impact on the interpretation of the matrix
C) balancing
If a data flow appears on the context diagram and is also represented at level-0, this would be referred to as: A) leveling B) flow conservation C) balancing D) matching
A) appear on the context diagram
If an input from a source appears at level-0, it must: A) appear on the context diagram B) be connected to a data flow C) be connected to a sink D) be connected to a data store
C) be coupled to each other
If two processes are connected by a data flow, they are said to: A) share the same timing effects B) share the same data C) be coupled to each other D) be strapped to each other
C) complete
If your DFD contains data flows that do not lead anywhere, it is not: A) gap proof B) a primitive diagram C) complete D) consistent
A) indifferent condition
In a decision table, a condition whose value does not affect which actions are taken for two or more rules is referred to as a(n): A) indifferent condition B) static condition C) fixed condition D) flexible condition
B) gateway
In business process modeling, a decision point is called a(n): A) activity B) gateway C) terminal D) loop
A) swimlane
In business process modeling, a way to encapsulate a process is called a(n): A) swimlane B) fastlane C) lane D) none of the above
A) data store
In the Gane and Sarson model, a rectangle that is missing its right vertical sides on a data flow diagram represents a: A) data store B) data flow C) process D) source/sink
C) process
In the Gane and Sarson model, a rectangle with rounded corners on a data flow diagram represents a: A) data store B) data flow C) process D) source/sink
D) both A and B
On a data flow diagram, you may: A) repeat data stores B) repeat sources/sinks C) repeat processes D) both A and B
A) process
Recording a customer's payment is represented on a data flow diagram as a: A) process B) source C) data flow D) data store
B) decision table
Removing any rules with impossible actions to make which of the following simple as possible? A) activity diagram B) decision table C) structure chart D) hierarchical chart
B) data flow
Student data contained on an enrollment form is represented on a data flow diagram as a: A) process B) data flow C) source D) data store
C) functional decomposition
The act of going from a single system to several component processes refers to: A) structuring B) balancing C) functional decomposition D) formatting
B) balancing
The conservation of inputs and outputs to a data flow diagram process when that process is decomposed to a lower level defines: A) decomposition B) balancing C) conservation D) data flow structuring
B) what you learned during requirements determination
The deliverables of process modeling state: A) how you should develop the system during physical design B) what you learned during requirements determination C) how you should implement the new system during implementation D) what you learned during project planning
A) context diagram
The diagram that shows the scope of the system, indicating what elements are inside and which are outside the system, is called a: A) context diagram B) level-2 diagram C) referencing diagram D) representative diagram
B) DFD completeness
The extent to which all necessary components of a data flow diagram have been included and fully described refers to: A) DFD consistency B) DFD completeness C) DFD gap proofing D) DFD flexibility
A) DFD consistency
The extent to which information contained on one level of a set of nested data flow diagrams is also included on other levels refers to: A) DFD consistency B) DFD completeness C) DFD gap proofing D) DFD flexibility
D) primitive data flow diagrams
The lowest level of DFDs is called: A) level-0 diagrams B) context diagrams C) level-1 diagrams D) primitive data flow diagrams
D) primitive diagram
The lowest level of decomposition for a data flow diagram is called the: A) context diagram B) level-0 diagram C) level-1 diagram D) primitive diagram
A) source/sink
The origin and/or destination of data, sometimes referred to as external entities defines: A) source/sink B) data store C) data flow D) process
B) rules
The part of a decision table that links conditions to actions is the section that contains the: A) action statements B) rules C) condition statements D) decision stubs
B) condition stubs
The part of a decision table that lists the actions that result for a given set of conditions is called: A) action stubs B) condition stubs C) rule section D) condition execution
C) rules
The part of a decision table that specifies which actions are to be followed for a given set of conditions refers to: A) action stubs B) condition list C) rules D) decision list
D) gap analysis
The process in analysis in which the analyst tries to discover discrepancies between two or more sets of data flow diagrams, representing two or more states of an information system, or discrepancies within a single DFD, is referred to as: A) double checking B) sequencing C) referencing D) gap analysis
D) a rectangle with rounded edges
The symbol for an activity is: A) a square B) a circle C) an arrow D) a rectangle with rounded edges
D) process
The work or actions performed on data so that they are transformed, stored, or distributed defines: A) source/sink B) data store C) data flow D) process
D) multiply the number of values for each condition by the number of values for every other condition
To determine the number of rules required for the decision table, you would: A) add the number of values for each condition to the number of values for every other condition B) multiply the number of conditions by two C) add the number of values for each condition to the number of values for every other condition, then subtract 1 D) multiply the number of values for each condition by the number of values for every other condition
D) limited entry
When condition values are either "yes" or "no", these values are called a(n): A) extended entry B) simple entry C) complex entry D) limited entry
C) primitive data flow diagrams
When you believe that you have shown each business form or transaction, computer screen, and report as a single data flow, you have probably reached the: A) level-0 diagrams B) level-1 diagrams C) primitive data flow diagrams D) level-3 diagrams
C) A data store has a noun phrase label.
Which of the following is a true statement regarding a data store? A) Data can move directly from one data store to another data store. B) Data can move directly from a sink to a data store. C) A data store has a noun phrase label. D) Data can move from an outside source to a data store.
D) A join in a data flow means that exactly the same data comes from any of two or more different processes, data stores, or sources/sinks to a common location.
Which of the following is a true statement regarding data flows? A) A data flow may have multiple directions between symbols. B) A data flow to a data store means retrieve or use. C) A data flow from a data store means update. D) A join in a data flow means that exactly the same data comes from any of two or more different processes, data stores, or sources/sinks to a common location.
D) All of the above.
Which of the following is a true statement regarding sources/sinks? A) Sources/sinks are always outside the information system and define the boundaries of the system. B) Data must originate outside a system from one or more sources. C) The system must produce information to one or more sinks. D) All of the above.
D) none of the above
Which of the following is considered when diagramming? A) the interactions occurring between sources and sinks B) how to provide sources and sinks direct access to stored data C) how to control or redesign a source or sink D) none of the above
B) A data flow can go directly back to the same process it leaves.
Which of the following is not a true statement regarding data flows? A) A fork 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. B) A data flow can go directly back to the same process it leaves. C) A data flow has a noun phrase label. D) A data flow has only one direction of flow between symbols.
C) Composite data flows on one level cannot be split into component data flows at the next level.
Which of the following is not an advanced rule governing data flow diagramming? A) To avoid having data flow lines cross each other, data stores may be repeated on a DFD. B) At the lowest level of DFDs, new data flows may be added to represent data that are transmitted under exceptional conditions. C) Composite data flows on one level cannot be split into component data flows at the next level. D) The inputs to a process must be sufficient to produce the outputs from the process.
D) state-transition diagram
Which of the following is not one of the primary deliverables resulting from studying and documenting a system's processes? A) context data flow diagram (DFD) B) thorough descriptions of each DFD component C) DFDs of the current logical system D) state-transition diagram
