Lec 3 Flashcards
first part of testing
What is the two main goals of testing?
1- insure to the developer and the customer that the System/software meets it’s Requirements (Functional/non Functional).
2- Discover Situations in which the system act incorrectly, undesirable or doesn’t confirm it’s specification.
After knowing the goals of the testing:
The first goal leads to____________.
Validation testing: make sure that the system/software perform correctly by giving set of test case that reflect it’s expected use.
After knowing the goals of the testing:
The Second goal leads to____________.
Defect testing: discover the defects of the system/software and the errors.
Verification:
“Are we building the_________.”
(Right product / Product right)
Product right : which means confirming the system to it’s its
specification.
Validation:
“Are we building the_________.”
(Right product / Product right)
Right product : which means that the system/software should meet the user Requirements.
Aim of Validation & Verification is _________________________________.
make confidence that the system/software is fit for purpose.
to make sure that the software is fit for purpose:
that depends on three things__________ , ___________ and _____________.
- Software purpose : how critical the software is to an organization.
- User expectations : he may have low expectations of certain kind of software.
- Marketing environment : Getting a product to market early and up to date.
What are the V & V checking approaches?
Software inspections : Concerned with analysis of the static system representation (Static verification).
Software testing: Concerned with exercising and observing product features (dynamic verification).
Software inspections features:
1- discovering anomalies and defects.
2- Doesn’t require execution of the system (can be before implementation).
3- Effective technique for discovering program errors.
what is the Advantages of inspections ?
1- inspection is static process so no error can hide other errors because no interaction between them.
2- Incomplete versions of a system can be inspected without additional costs.
3- inspection can also consider broader quality attributes of a program.
what is the disadvantages of inspections ?
Inspections cannot check non-functional characteristics
such as performance, usability.
What is the black-box testing?
testing the system/software from the external discerption (design , specifications)
What is the white-box testing?
testing the system/software from the source code internally (statements, conditions, classes, methods).
what is the three Stages of testing?
Development test: test the system/software during development stage.(the developer who tests it).
Release testing: test the System/software after finishing up it.(group of testers who test it).
User testing: test the system by the users in their own environment.
Types of Development testing ___________, ____________ and ____________
unit testing ,component testing and system test
unit testing: individual program units or object classes are tested.
component testing: several units are integrated to create components.
System test: some or all of the components in a system are integrated and the system is tested.
