F451: Systems Developmental Life Cycle

Question 1

What is the Waterfall Model

Answer 1

The waterfall model is a sequential design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the SDLC

Question 2

What is the spiral model

Answer 2

The spiral model, also known as the spiral lifecycle model, is a systems development lifecycle (SDLC) model used in information technology (IT). This model of development combines the features of the prototyping model and the waterfall model. The spiral model is favored for large, expensive, and complicated projects.

Question 3

The 9 stages of SDLC?

Answer 3

1. Problem definition
2. Feasibility Study
3. Information collection
4. Analysis
5. Design
6. Implementation
7. Evaluation
8. Installation
9. Maintenance

Question 4

Define Problem definition

Answer 4

If the problem is not defined then it might not be solvable or it may not meet the clients requirements. If the analyst and the client do not work together then either the solution may not work or it may work and yet not solve the problem

Question 5

Define Feasibility Study

Answer 5

It is a set of questions asked before further action is taken i.e.

1. Is the technology available to solve the problem
2. Is it economically viable
3. What are the social effects
4. Is there enough manpower
5. What will the effect be on the customer

Question 6

Define Info Collection

Answer 6

The analyst wants to collect information about the problem once the client and the analyst have agreed on the solution. DOM IQ

Question 7

Define Analysis

Answer 7

This stage determines which of the collected data is the most important

Question 8

Define Design

Answer 8

Look at design and develop spec for new solution

Question 9

Define Implementation

Answer 9

The analyst will often give the design job to a specialist whose task is to produce a solution based on the design spec

Question 10

Design Evaluation

Answer 10

Once the solution has been produced it must be evaluated to decide whether or not it adequately solves the problem this can be achieved by testing. The aim is to prove to the client that the solution works

Question 11

Define Technical documentation

Answer 11

Is a set of docs that has been designed for a person who is computer literate. The doc will include test results, annotated program code and data structures

Question 12

Define User documentation

Answer 12

Which comes with the system and gives the user instructions about how to use the system