chapter 11 & 12

Question 1

What are the different types of testing?

Answer 1

Inspection, Walkthrough, Desk checking, Unit testing, Integration testing, System testing, & Stub testing.

Question 2

What are inspection & walkthrough testing?

Answer 2

Inspection testing: Participants test program codes for potential language specific errors.

Walkthrough testing: A peer review on product during system process including codes.

Question 3

What is Desk checking?

Answer 3

A program code is executed manually by a reviewer.

Question 4

What are Unit & Integration testing?

Answer 4

Unit testing: testing of each module for potential errors

Integration testing: testing of all modules together in a top-down fashion

Question 5

What is System testing?

Answer 5

Testing of all programs comprise of a system.

Question 6

What is a Stub testing?

Answer 6

Testing of all modules written in top-down fashion. A few lines of codes will substitute for subordinate modules.

Question 7

Why is testing needed?

Answer 7

• to determine the system satisfy the requirements

- to ensure the code and system performance efficiently

Question 8

What are the user testing?

Answer 8

1. Acceptance testing: users testing the complete system and accept it.
2. Alpha testing: Using simulated data to test a complete system.
3. Beta testing: Using real data in real environment to test a complete system.

Question 9

What are the types of alpha tests?

Answer 9

1. Recovery testing: Purposely fail a software to determine the recovery is properly performed.
   2, Security testing: Verifies the protection within the system blocks improper penetration.
2. Stress testing: Attempt to break the system.
3. Performance testing: Testing the system on various environment which may be used.

Question 10

What are the different installation methods?

Answer 10

Direct, Parallel, Single-location, & Phased installation.

Question 11

What is Direct installation? What are the pros & cons?

Answer 11

Turning off the old system and switching to the new system.

• Immediate implementation of new system
• Requires less resources

. Users may not be able to adapt to the new system immediately

Question 12

What is Parallel installation? What are the pros & cons?

Answer 12

Introducing both the new and old system together before deciding to turn off the old system.

• Not losing much data
• Ease users into using the new system
• 1 system still runs even if 1 fails

. Costly & requires a lot of resources

Question 13

What is Single-Location installation? What are the pros & cons?

Answer 13

Known as pilot installation. This is to implement the system in 1 site and using the experience on how the system to be deployed throughout the organization.

• Able to detect errors
• Only 1 part of an organization is effected

. Data loss if the site has large database
. Takes a long time to implement the system

Question 14

What is Phased installation? What are the pros & cons?

Answer 14

Introducing 1 or a few modules incrementally with the old system then gradually replace to the new system.

• Error detection with small parts
• Not much data loss
• Ease for users utility of the software.

. A little similar to parallel, can be costly and requires resources.

Question 15

What are the different types of documentation?

Answer 15

1. System documentation: In-depth documentation of the system with descriptions, functionality, & internal workings
2. User documentation: Written or visual documentation on the workings & usage of the system.
3. Internal documentation: Part of the program source code.
4. External documentation: Documentation of structured diagramming techniques such as ERD or DFD.