Sayers 1

Todd Sayers

Professor Chapman

CINS 203 00F

20 August 2013

Review Questions: Session 1 Project

Review Question 3: List and explain the different phases in the SDLC

Planning – Organization’s total information system needs are identified, analyzed, prioritized, and

arranged.

Analysis – System requirements are studied and structured.

Design – The description of the recommended solution is converted into logical and then physical

system specifications.

Implementation – The information system is coded, tested, installed, and supported in the

organization.

Maintenance – Information system is systematically repaired and improved.

Review Question 4: List and explain some of the problems with the traditional waterfall SDLC

System requirements “locked in” after being determined (can't change), Limited user involvement

(only in requirements phase), Too much focus on milestone deadlines of SDLC phases to the

detriment of sound development practices.

Review Question 5: What are CASE tools?

Software tools that provide automated support for some portion of the systems development

process.

Review Question 6: Describe each major component of a comprehensive CASE system. Is any

component more important than any other?

Diagramming Tools – enable system process, data, and control structures to be represented

graphically.

Computer display and report generators – help prototype how systems “look and feel.” Makes it

easier for system analyst to identify data requirements and relationships.

Analysis tools – automatically check for incomplete, inconsistent, or incorrect specifications in

diagrams, forms, and reports.

Central Repository – enables the integrated storage of specifications, diagrams, reports, and

project management information.

Sayers 2

Documentation generators – produce technical and user documentation in standard formats.

Code generators – enable the automatic generation of program and database definition code

directly from the design documents, diagrams, forms, and reports.

Problems and Exercises: Session 1 Project

Problem 3: Compare Figures 1-2 and 1-3. What similarities and differences do you see?

They both have the same phases. In Figure 1-2 the project can return to an earlier phase if

necessary. Whereas in Figure 1-3 you are constantly cycling through the phases at different levels

of detail.

Problem 4: Compare Figures 1-2 and 1-4. Can you match steps in Figure 1-4 with phases in Figure 1-2?

How might you explain the differences between the two figures?

Figure 1-4 has the basic phases of Figure 1-2. The difference is the DOJ SDLC is a little more complex

using ten phases.