Chapter 18 - Systems Construction And Implementation

Front 1

What are the three kinds of testing suggested in the textbook?

Back 1

1. Stub testing – testing performed on individual modules
2. Unit or program testing – all modules are tested an integrated unit
3. Systems testing – ensures the total system works when application programs are integrated

Front 2

What are the four common conversion strategies?

Back 2

They are abrupt cut-over, parallel conversion, location conversion and staged conversion

Front 3

What are some potential problems of using abrupt cut-over as a conversion strategy?

Back 3

The problem is that there may still be major problems that won’t be uncovered until the system has been in operation for at least one business period.

Front 4

What are some potential problems of using parallel conversion as a conversion strategy?

Back 4

The problem is that the cost of running two systems over some period must be incurred. This could cause unreasonable demand on computing resources.

Front 5

What is the difference between alpha testing and beta testing?

Back 5

The difference is that beta testing runs the system in a live environment using real data while alpha testing runs the system in a simulated environment using simulated data.