1 Software Testing Background
IN THIS CHAPTER
Ÿ Infamous Software Error Case Studies
Ÿ What Is a Bug?
Ÿ Why Do Bugs Occur?
Ÿ The Cost of Bugs
Ÿ What Exactly Does a Software Tester Do?
Ÿ What Makes a Good Software Tester?
In 1947, computers were big, room-sized machines operating on mechanical relays and glowing vacuum tubes. The state of the art at the time was the Mark II, a behemoth being built at Harvard University. Technicians were running the new computer through its paces when it suddenly stopped working. They scrambled to figure out why and discovered, stuck between a set of relay contacts deep in the bowels of the computer, moth. It had apparently flown into the system, attracted by the light and heat, and was zapped by the high voltage when it landed on the relay.
The computer bug was born. Well, okay, it died, but you get the point.
Welcome to the first chapter of Software Testing. In this chapter, you’ll learn about the history of software bugs and software testing.
Highlights of this chapter include
Ÿ How software bugs impact our lives
Ÿ What bugs are and why they occur
Ÿ Who software testers are and what they do
第一章 软件测试的背景
本章内容
Ÿ 臭名昭著的软件错误案例研究
Ÿ 什么是软件缺陷？
Ÿ 为什么会出现软件缺陷？
Ÿ 修复软件缺陷的成本
Ÿ 软件测试员究竟做些什么工作？
Ÿ 优秀的软件测试员应具备哪些特质？
1947年，计算机非常庞大，房间那么大的机器通过机械继电器和发光电子管来运作。运用当时最先进的Mark第二代技术，哈佛大学建造了一个庞然大物。当技术人员正在运行这台新的计算机来测试它总体性能的时候，它突然停止了工作。技术人员爬上计算机去查找原因，最后发现，是因为一只飞蛾被粘在了计算机内部很深的一组继电器触点间了。很显然，这只飞蛾被发光电子管的光和热所吸引而飞进计算机系统深处，最后当因为停靠在高电压的继电器上而被击毙。
计算机缺陷诞生了，好吧，好吧，它死了，但是你明白了吧。
欢迎来到软件测试的第一章，在这章里，你将学习关于软件缺陷和软件测试的历史。
本章精华
Ÿ 软件缺陷如何影响我们的生活
Ÿ 什么是软件缺陷，以及为什么会产生软件缺陷
Ÿ 软件测试员是哪些人，以及他们做些什么工作
