CIS 360 VERIFIED STUDY GUIDE
systems analysis - Answers - Those activities that enable a person to understand and
specify what an information system should accomplish WHAT
systems design - Answers - Those activities that enable a person to define and describe
in detail the system that solves the need
HOW
System Development Life Cycle - Answers - The entire process consisting of all
activities that are part of systems analysis, systems design, programming, testing,
implementing, and maintaining the system (i.e., all activities required to build, launch,
and maintain an information system)
adaptive approach to the SDLC - Answers - -iterative model
-assumes the project must be more flexible and adapt to changing needs as the project
progresses
-requirements and needs are uncertain and/or high technical risk
predictive approaches to SDLC - Answers - •the Waterfall model
•Assumes the project can be planned in advance and that the information system can
be developed according to the plan
•Requirements are well understood
Waterfall Model - Answers - •SDLC that assumes phases can be completed
sequentially with no overlap or iteration
•Once one phase is completed, you fall over the waterfall to the next phase, no going
back
•The Most Predictive SDLC Approach
pros of the waterfall model - Answers - •Requirements are identified prior to
programming
•Minimizes changes
cons of the waterfall model - Answers - •Design must be completely specified prior to
programming
•Lengthy deliverables lead to poor communication-important specifications may be
overlooked
•Users may miss important requirements leading to extensive post-implementation
programming
•Long time between requirements determination and implementation: changes in
business environment
, iterations - Answers - can be used to create a series of mini-projects that address
smaller parts of the application, rather than having the analysis, design, and
implementation phases proceed sequentially with some overlap
Iterative Development - Answers - •Core components are developed first and then
additional components are added.
•The six core development processes are repeated for each component.
•There is one big project, which consists of a series of mini-projects.
incremental development - Answers - •Always based on an iterative life cycle
•The system is built in small increments
•An increment may be developed within a single iteration or two or three iterations.
walking skeleton - Answers - •A complete front-to-back implementation of the new
system but with only the "bare bones" of functionality
•Developed in a few iterations early in the project
minimum viable product - Answers - the version of a new product which allows a team
to collect the maximum amount of validated learning about customers with the least
effort
Iterate Fast and Release Often - Answers - • If you're not embarrassed by the first
version of your product, you've launched too late
•The perfect product is shaped by the users
Agile Development - Answers - •A philosophy and set of guidelines
•Only proposes principles
•Not meant to be a complete methodology, with practices and action steps
•Complements adaptive approaches to the SDLC
•Basic philosophy: Neither team members nor the users completely understand the
problems and complexities of a new system, so the project plan and the execution of
the project must be responsive to unanticipated issues.
Unified Process - Answers - •An object-oriented system development methodology
originally offered by Rational Software (now part of IBM)
•Defines a complete methodology that uses Unified Modeling Language (UML) for
system models and describes a new, adaptive system development life cycle.
inception - Answers - first phase of Unified Process
•Establish the business case for the system and delimit the project scope.
•Identify all external entities with which the system will interact (actors)
•Define the nature of this interaction at a high-level. **Identifying all use cases and
describing a few significant ones
elaboration - Answers - second phase of Unified Process
systems analysis - Answers - Those activities that enable a person to understand and
specify what an information system should accomplish WHAT
systems design - Answers - Those activities that enable a person to define and describe
in detail the system that solves the need
HOW
System Development Life Cycle - Answers - The entire process consisting of all
activities that are part of systems analysis, systems design, programming, testing,
implementing, and maintaining the system (i.e., all activities required to build, launch,
and maintain an information system)
adaptive approach to the SDLC - Answers - -iterative model
-assumes the project must be more flexible and adapt to changing needs as the project
progresses
-requirements and needs are uncertain and/or high technical risk
predictive approaches to SDLC - Answers - •the Waterfall model
•Assumes the project can be planned in advance and that the information system can
be developed according to the plan
•Requirements are well understood
Waterfall Model - Answers - •SDLC that assumes phases can be completed
sequentially with no overlap or iteration
•Once one phase is completed, you fall over the waterfall to the next phase, no going
back
•The Most Predictive SDLC Approach
pros of the waterfall model - Answers - •Requirements are identified prior to
programming
•Minimizes changes
cons of the waterfall model - Answers - •Design must be completely specified prior to
programming
•Lengthy deliverables lead to poor communication-important specifications may be
overlooked
•Users may miss important requirements leading to extensive post-implementation
programming
•Long time between requirements determination and implementation: changes in
business environment
, iterations - Answers - can be used to create a series of mini-projects that address
smaller parts of the application, rather than having the analysis, design, and
implementation phases proceed sequentially with some overlap
Iterative Development - Answers - •Core components are developed first and then
additional components are added.
•The six core development processes are repeated for each component.
•There is one big project, which consists of a series of mini-projects.
incremental development - Answers - •Always based on an iterative life cycle
•The system is built in small increments
•An increment may be developed within a single iteration or two or three iterations.
walking skeleton - Answers - •A complete front-to-back implementation of the new
system but with only the "bare bones" of functionality
•Developed in a few iterations early in the project
minimum viable product - Answers - the version of a new product which allows a team
to collect the maximum amount of validated learning about customers with the least
effort
Iterate Fast and Release Often - Answers - • If you're not embarrassed by the first
version of your product, you've launched too late
•The perfect product is shaped by the users
Agile Development - Answers - •A philosophy and set of guidelines
•Only proposes principles
•Not meant to be a complete methodology, with practices and action steps
•Complements adaptive approaches to the SDLC
•Basic philosophy: Neither team members nor the users completely understand the
problems and complexities of a new system, so the project plan and the execution of
the project must be responsive to unanticipated issues.
Unified Process - Answers - •An object-oriented system development methodology
originally offered by Rational Software (now part of IBM)
•Defines a complete methodology that uses Unified Modeling Language (UML) for
system models and describes a new, adaptive system development life cycle.
inception - Answers - first phase of Unified Process
•Establish the business case for the system and delimit the project scope.
•Identify all external entities with which the system will interact (actors)
•Define the nature of this interaction at a high-level. **Identifying all use cases and
describing a few significant ones
elaboration - Answers - second phase of Unified Process
