Quality Assurance
QA is concerned with:
1 The method being used correctly 2 The specified products are available at the appropriate step 3 The products are complete in themselves and cross-checked against other
products for consistency and completeness 4 The system will functionally do what it is intended to do 5 Required design objectives such as performance are being achieved
Levels Of QA
1 None 2 Informal between team members 3 Formal i.e. A meeting at specific checkpoints subject to proper
minuting and rework 4 Project board where current state of development is reviewed in all its aspects 5 Authorisation or signing off when work is accepted by project board and go-ahead is given to proceed to next step.
Structured Walkthrough
A walkthrough is a public review of a product by a peer group.
It improves quality of outputs by early detection of:
1 Errors
2 False assumptions
3 Misunderstandings
4 Lack of adherence to standards
It cultivates a group approach to problem identification
Review Principles
Reviews are carried out at prescribed checkpoints in the life-cycle
Review checks logic, use of method, adherence to standards, achievement of specified functionality and levels of performance under control and within estimates Reviews are made by peer groups or by outside teams Reviews are carried out according to a prior laid-out plan Meetings are limited to two hours Meetings organised and controlled by a moderator Checklists are used at each review point Each checkpoint may involve specialist reviewers Statistics of defects found are maintained and analysed
Composition Of A Walkthrough
Three to six persons at the same seniority within an organisation
Composed of:
1 Presenter
2 Co-ordinator
3 Secretary
4 Reviewers
Walkthrough Roles
Presenter:
1 Originator of subject matter
2 Instigates walkthrough
3 Prepares relevant documentation
4 Presents products
5 Follows up action decided
Co-ordinator:
1 Schedules meeting 2 Ensures availability of attendees 3 Sends out relevant documentation 4 Keeps order and maintains progress 5 Keeps meeting within established time limits 6 Obtains agreement on follow-up action 7 Ensures agreed products are signed off.
Secretary:
1 Documents all problems 2 Summarizes problems at end of meeting 3 Classifies problems as to complexity 4 Records required follow-up decisions taken
Reviewers:
1 Examine documents is advance as received by secretary 2 Be well-prepared as regards questions to be asked 3 Raise relevant questions during walkthrough 4 Sign off products which are acceptable.
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