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ISDS 406 Midterm Exam: Questions And Answers (100% Accurate)
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ISDS 406 Midterm Exam: Questions And Answers (100% Accurate)
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ISDS 406 Midterm Exam: Questions And Answers(100% Accurate)
What is scope creep? Right Ans - New requirement is added to the project
after original project scope was defined. Its very difficult to control if the
project doesn't possess the upmost, highest priority features.
What are the four elements of a DFD? Right Ans - -Process or event
(Rounded Rectangle w/ Number)
-Data flow (Arrow)
-External entity or agent (Square)
-Data store (Open rectangle/parallel lines)
Which element of the DFD is never included in the Context Diagram? Is there a
workaround exception? Right Ans - Data Store
If the system uses data from or supplies data to another system, that system
becomes an external entity and not a data store.
Which phase is usually the longest and most expensive, but can also be the
least complex? Right Ans - Implementation Phase
Describes the reasons for developing the system and outline the capabilities it
will provide the organization Right Ans - Business Requirements
A process of selecting, prioritizing and monitoring project results. Right
Ans - Project portfolio management
Process of planning and controlling the project within a specified time frame.
Right Ans - Project Management
What are the two gathering strategies for small improvements in an
organization? Right Ans - -Problem Analysis: Asks users to identify
problems and solutions.
-Root Case Analysis: Finds out why problem exists. Attempts to find "real"
problem.
,Which gathering strategies are useful for making moderate improvements in
effectiveness? Right Ans - -Duration Analysis: How long whole process and
each step within process takes. Looks for steps that can be shortened or
omitted.
-Activity-based Costing: Looks at the cost of each step to see if any can be
made more cost effective.
-Informal Benchmarking: Compares organizations process to similar
organizations processes to find improvement opportunities.
Which gathering strategies are best for redesigning the whole system
(complete "overhaul" of the system)? Right Ans - -Outcome Analysis: The
desirable outcomes from the customer's perspective are considered.
-Technology Analysis: Analysts and employees list important/interesting
technologies for consideration in new system.
-Activity elimination: Imagines what would happen with out each
organizational activity (even if it's ridiculous).
Do process models document the current (as-is) system or the new (to-be)
system? Explain. Right Ans - trick question, they can be used for either or.
The reason is that a process model is defined as a description of a business
process, or the activities that people do. Because an as-is system and a to-be
system are essentially both business processes, process models and document
both.
What are system requirements? Right Ans - What the system needs to do in
order to satisfy business user needs.It also summarizes the features the
information system must include, such as the ability to collect customer
orders online or the ability for suppliers to receive inventory status
information as sales occur.
What are the duties of the project manager? Right Ans - -Creates a
workplan, staffs the project, puts techniques in place to help control and
direct project through the entire SDLC
,-planning and controlling the project with a specified time frame, at minimum
cost, with desired outcomes
What is agile development? Right Ans - Is a group of programming-centric
methodologies that focus on streamlining the SDLC.
What are the weaknesses of agile development? Right Ans - -requires
discipline
-significant users involvement is essential
-initial high learning curve
-works best in smaller projects
-more coordination required because analysts/designers/users all work
together in every iteration
What is CASE? Right Ans - Computer-Aided Software Engineering is used
during the analysis phase to create integrated diagrams of the system and to
store information regarding the system components, also automates all or
part of the development process.
All of the following are tangible benefits to a system except?
a) increased sales
b)reduced staff
c)better supplier relations
d)reductions in inventory
e)better supplier prices Right Ans - c) better supplier relations is a
intangible benefit.
Which of the following is true about the roles of project manager and systems
analyst?
a. They can be the same person, but often are not (especially in larger
organizations) Correct
b. They are always the same person
, c. They should never be the same person Right Ans - a. They can be the
same person, but often are not (especially in larger organizations)
Which of the following statements about the waterfall methodology is true?
(Hint: We are using the Waterfall methodology for the case project in this
course)
a. The waterfall methodology moves sequentially from planning, to analysis, to
design, to implementation.
b. The waterfall methodology is iterative (i.e., cyclical) -- several rounds of
planning, analysis, design, and implementation occur.
c. The waterfall methodology is useful when organizations want to quickly
develop a working prototype. Right Ans - a. The waterfall methodology
moves sequentially from planning, to analysis, to design, to implementation.
Correct
Which of the following is NOT one of the project methodologies explained in
Chapter 2?
a. Forward-backward development (e.g., Prototype-User development, X-
model) Correct
b. Agile development (e.g., XP, Scrum)
c. Waterfall development (e.g., traditional, parallel development, V-model)
d. Rapid application development (RAD) (e.g., iterative, system prototyping,
throwaway prototyping) Right Ans - a. Forward-backward development
(e.g., Prototype-User development, X-model) Correct
Data stores form the starting point for the data model and form the logical
connection between the process model and the data model. (True/False)
Right Ans - True
Name 3 useful checks to help ensure that models are semantically correct.
Right Ans - 1. Have the users role-play the process as it is described in the
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