Why Sofware Testing?
To reduce risk:
Customer dissatisfaction
Decrease of market share
Higher service costs
To verify
To ensure that the system operates according to the requirements
“Passive” testing; the positive attributes of the system are tested
To validate
To ensure that the software is free from defects
“Active” testing; let’s try to break the system!
QA and Organizational Culture
On average, proper software testing takes up as much time as designing and building a software application
After you have written and compiled your software application, you don’t throw away the source code: that is your investment.
However, after testing, not much of your testing environment, test cases, test scripts, test results and logs are saved.
If testing software takes as much time as building it, why are we so careless about our investment in testing?
Introducing new tools and imposing new techniques will not change the process.
Everyone involved in the delivery of the software, including business users, analysts, designers, programmers, testers, managers, executives, systems personnel and quality assurance people, must understand that you are fundamentally changing the way you build and test software.
TEST PLANNING
Master Test Plan
Defines the overall project’s test strategy
Defines the project’s test objectives
Estimates effort
The 40% Rule
Work Breakdown Structure (WBS)
Should be prepared as part of the requirements of the system
Detailed Test Plans
Dependent on knowledge of the system
List Test Cycles
Entry Criteria
Exit Criteria
Expected Results
Test Cases
Roles and Responsibilities
Resource Requirements
Business and technical people
Software for Testing Environment and Automation
Reporting Requirements
Test Plan Change Control
Developement Methodologies
V” Model Development -
Attempts to address the problems associated with the waterfall model by making sure that testing occurs earlier in the development life-cycle
Test planning takes place in conjunction with design documents
In theory, you are ready to start running the tests as soon as you have the software