上浒文通大学 SHANGHAI JLAO TONG UNIVERSITY 11.Testing 六 漏 田 旺 SHANG 1日gG
11. Testing
上游充通大兽 Outline SHANGHAI JIAO TONG UNIVERSITY An Overview of Testing Testing Concepts Testing Activities Managing Testing Chapter 11 Software Engineering
Software Engineering Outline An Overview of Testing Testing Concepts Testing Activities Managing Testing Chapter 11
上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY 1.An Overview of Testing Software Engineering
Software Engineering 1. An Overview of Testing
上海充通大学 SHANGHAI JIAO TONG UNIVERSITY 1.1 What is a computer bug? In 1947 Harvard University was operating a room-sized computer called the Mark Il. 。mechanical relays 数园2型 ·glowing vacuum tubes technicians program the computer by reconfiguring it Technicians had to change the occasional vacuum tube. A moth flew into the computer and was zapped by the high voltage when it landed on a relay. Hence,the first computer bug! Software Engineering
Software Engineering 1.1 What is a computer bug? In 1947 Harvard University was operating a room-sized computer called the Mark II. • mechanical relays • glowing vacuum tubes • technicians program the computer by reconfiguring it • Technicians had to change the occasional vacuum tube. A moth flew into the computer and was zapped by the high voltage when it landed on a relay. Hence, the first computer bug!
上大当.2 Adverse Effects of Faulty Software SHANGHAI JIAO TONG UNIVERSHY Communications:Loss or corruption of communication media,non delivery of data. Space Applications:Lost lives,launch delays. Defense and Warfare:Misidentification of friend or foe. Transportation:Deaths,delays,sudden acceleration,inability to brake. Safety-critical Applications:Death,injuries Electric Power:Death,injuries,power outages, long-term health hazards (radiation) Software Engineering
Software Engineering 1.2 Adverse Effects of Faulty Software Communications: Loss or corruption of communication media, non delivery of data. Space Applications: Lost lives, launch delays. Defense and Warfare: Misidentification of friend or foe. Transportation: Deaths, delays, sudden acceleration, inability to brake. Safety-critical Applications: Death, injuries. Electric Power: Death, injuries, power outages, long-term health hazards (radiation)