Module 5 Flashcards
Logical process models are:
a.
Models that describe processes without suggesting how they are conducted
b.
Developed by the infrastructure analyst
c.
Coded logic models
d.
Created in the system walkthough
e.
Models based upon implementing the if-then-else programming structure
Models that describe processes without suggesting how they are conducted
A process model is:
a.
The model that is produced by extreme prototyping
b.
The work plan
c.
The expanded and thoroughly balanced use case for a system
d.
A formal way of representing how a business system operates
e.
The output of the interviewing process
A formal way of representing how a business system operates
Balancing a DFD is part of validating the diagram
True
The relationship between use cases and data flow diagrams is:
a.
They are the same thing – use cases are process models using the DeMarco and Yourdon notation; and DFD’s are process models using the Gane and Sarson notation.
b.
Use cases are developed by users exclusively; while DFD’s are developed by analysts exclusively
c.
Use cases come out of JAD sessions and clarify what was discussed by users in those sessions; DFD’s come out of analysts’ interviews.
d.
Use cases tend to be developed with users to make sure the analyst has fully captured the processes and relationships; DFD’s are built upon the use cases to more fully formally understand the processes involved
e.
Both are tools in a systems analysts toolbox, although they do unrelated things
Use cases tend to be developed with users to make sure the analyst has fully captured the processes and relationships; DFD’s are built upon the use cases to more fully formally understand the processes involved
Which DFD shows all the processes of the system?
a.
Non-functional requirements
b.
Level 2 diagram
c.
Context diagram
d.
Level 1 diagram
e.
Level 0 diagram
Level 0 diagram
Which DFD is the least detailed?
a.
Context diagram
b.
Level 0 diagram
c.
Level 1 diagram
d.
Level 2 diagram
e.
Non-functional requirements
Context diagram
Which DFD is the most detailed?
a.
Non-functional requirements
b.
Level 0 diagram
c.
Context diagram
d.
Level 1 diagram
e.
Level 2 diagram
Level 2 diagram
Data flow diagrams (as the name implies) focus on the physical data in a system.
False
The major inputs and major outputs listed on the use case provide a list of the sources and destinations of the inflows and outflows on the processes on a DFD.
True
Process models are only used to document the current system (that is, the “as-is” system), since that is the system the users know and is the system that will be modified.
False
Brianna has a process has two inputs but only one output
a.
This is an error as there needs to be the same amount of inputs as outputs
b.
This is normal as all processes need at least one input and at least one output
c.
This is normal as all processes have two inputs and one output
d.
This is an error as processes only produce output
e.
This is an error as process do not have inputs or outputs
a.
This is an error as there needs to be the same amount of inputs as outputs
Data Flow diagramming is a tool for doing process modeling.
True
Validating DFDs is done in the design phase of the SDLC.
False
