WGU C179 SDLC Questions and Correct Answers |
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systems development life cycle (SDLC) Ans: a highly structured, phased
approach to implementing a new information system
SDLC is divided into the following five phases: Ans: 1) planning or
Define System
2) analysis or Determine Requirements
3) design
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4) implementation
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5) maintenance
Two structures used to help manage the SDLC Ans: work breakdown
structure and
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Gantt chart.
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The work breakdown structure Ans: An outline view of the tasks to be
completed, which are organized by phases. This document provides a
scope and schedule of the major systems development tasks in systemic
order.
Gantt chart Ans: Project management software used to manage the
project from a higher-level perspective. Displays tasks and dependencies
in a matrix view.
If any task changes, updating the task produces an updated chart.
SDLC Strengths Ans: •Ability to monitor and maintain control over large
projects
•Detailed phases that guide systems development in a controlled manner
, 2 for specific request mail
•Good documentation
•Great user input into requirements
•Easy systems maintenance
•Ability to make changes to the information technology staff without
affecting the development process
(in theory!)
SDLC Weaknesses Ans: •Longer development time than other
methodologies
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•Increased development costs
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•Need for well-defined systems at outset, before development starts
•Rigid process
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•Some difficulty in estimating scheduling and budgeting
•Limited user input
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SDLC Phase 1: Planning - 3 major tasks Ans: 1) Define the scope of the
system
2) Conduct Feasibility Studies
3) Form a Project Team
SDLC Phase 2: Analysis - 5 major tasks Ans: 1) Identify System
Requirements
2) Identify System Object Requirements
3) Identify System Security
4) Identify Personnel Procedures
5) Create a Data Model