The Systematic approach to problem solving

Question 1

Advantages of the agile approach

Answer 1

• If the user isn’t sure what’s possible they can’t define requirements clearly, they are able to change things
• If the analyst misunderstands the user’s requirements/ wishes they are able to change things
• It is much easier to say what is wrong with a prototype version than to express in advance exactly what you are expecting
• Making changes to a finished product is expensive/time consuming so it avoids this.

Question 2

What will an analyst ask questions about?

Answer 2

• The data: origins, uses, volume, characteristics
• The procedures: what is done, where, when, how
• The future: development or expansion plans
• Problems with existing solutions

Question 3

Define the system life cycle

Answer 3

Analysis –> Design –> Implementation –> Evaluation –> Testing –> Maintenance

Question 4

What is the agile approach?

Answer 4

• Getting feedback from the user throughout the development of a system so adjustments can be made at every stage

Question 5

How are requirements of the new system established?

Answer 5

• The analyst must find out exactly what the user wants by
• interviewing users
• observing the current system
• examining documentation

Question 6

In the agile approach what may be required when establishing requirements of the new system?

Answer 6

-the process of clarifying requirements may involve building a prototype

Question 7

What is acceptance testing?

Answer 7

• Where the intended user test the program to ensure the intended solution is met

Question 8

What is testing boundary data?

Answer 8

• Test data that lies on the boundary of the systems expected range

Question 9

What is testing erroneous data?

Answer 9

• Test data that lies outside of the systems expected range

Question 10

What is testing normal data?

Answer 10

• Test data that lies within the systems expected range

- It should return the expected output