Baylor MIS 3320 Exam 1
What is a system analyst? and what is the main role of a systems analyst? -
ANS-System development activities that enable a person to understand and specify
what the new system should accomplish. Main role - the analysis and design of
information systems, most importantly problem solving.
What skills are necessary to be a successful systems analyst? - ANS-Technical,
business people
Technical - ANS-DB, programming, computer hardware, networking, operating systems,
utilities, communication and collaboration technology, SDLC Techniques
Business - ANS-Organizational knowledge, management techniques, functional work
processes
What is the difference between a tool and a technique? - ANS-Tool: a software
application that assists developers in creating models or other components required for
a project - usually use an SDLC to manage the project
Technique: guidelines to specify a method for how to carry out a development activity or
task.
What is a systems development project? - ANS-A planned undertaking that produces a
new information system.
What is an SDLC? - ANS-Framework that identifies all the activities required to
research, build, deploy, and often maintain an information system.
6 phases of an SDLC - ANS-Project initiation, Planning, Analysis, Design,
Implementation, Deployment
SDLC core processes - ANS-1. Identify the problem or need and obtain approval to
proceed with the project
2. Plan and monitor the project - what to do, how to do it, and who does it
3. Discover and understand the details of the problem or the need - what is required
, 4. Design the system components that solve the problem or satisfy the need - how will it
actually work
5. Build, test, and integrate system components - lots of programming and component
integration
6. Complete system tests and the deploy the solution - the need now is satisfied
Approaches to the SDLC - SDLD - ANS-A fundamental concept in the success of
information system development projects. Provides a way to think about the
development of a new system as a progressive process, much like a living entity.
Approaches to the SDLC - Predictive - ANS-Requirements well understood and well
defined (when the clients know exactly what they want). Low technical risk
Approaches to the SDLC - Adaptive - ANS-Requirements and needs uncertain (the
client doesn't know much of what they want). High technical risk
Describe the Waterfall model? - ANS-An SDLC approach that assumes the phases can
be completed sequentially with no overlap.
What are the problems with the Waterfall model? - ANS-System requirements "locked
in", limited user involvement, too much focus on milestone deadlines (have to do all of
the analysis and then the design can be done)
Describe the modified Waterfall. - ANS-Overlapping phases, can go backwards, things
can now be done faster
Describe the Spiral Model - ANS-An interactive approach, Spiral until project
completion, then deployed to the user
project management: managed differently than a waterfall approach
advantage: client gets to see something sooner and much faster
Describe incremental development? - ANS-The system is built in small increments, it is
"grown"
- as an iteration is completed it is integrated to the whole
- partially deployed in steps
- advantages: some functionality gets into the user's hands much earlier
What is a methodology? - ANS-Provides guidelines for every facet of the system
development life cycle. "a comprehensive guideline to follow for completing every SDLC
activity"
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