*********声明：本系列课程为Cem Kanner的软件黑盒测试基础的笔记版**************
What‘s A COMPUTER PROGRAM?
Textbooks often define a "computer program" like this:A program is a set of instructions(指令) for a computer.
That‘s like defining a house like this:
- A house is a set of construction materials assembled(建筑材料集合) according to house-design
patterns.
I‘d rather define it as:
- A house is something built for people to live in.
The second definition focuses on the
Stakeholders(for people) and Purpose(to live in), rather than on its materials.
Stakeholder(项目相关人): Any person affected by(受到……影响): success or failure of a project, or, actions or inactions of a product,or effects of a service.
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A DIFFERENT DEFINITION
- A computer program is:
- a communication
- among several humans and computers
- who are distributed over space and time,
- that contains instructions that can be executed by a computer
The point of the program is to provide value to the stakeholders.
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WHAT ARE WE REALLY TESTING FOR?
Quality is value to some person----Jerry Weinberg
Quality is inherently subjective(质量天生就是主观的). Different stakeholders will perceive the same product as having different levels of quality.
Testers look for different things for different stakeholders.
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SOFTWARE ERROR
An attribute(属性，品质) of a software product
- that reduces its value to a favored stakeholder
- increases its value to a disfavored stakeholder
- without a sufficiently large countervailing benefit
An error:
May or may not be a coding error, or a functional error. Design errors are bugs too.
--未完待续
第1讲：The nature of Testing--测试的本质