Problem
I. In February 2003 the U.S. Treasury Department mailed 50,000 Social Security checks without a beneficiary name.
Find out the reason for this mistake.
Explain about the activity which could have helped to avoid this mistake,
II. In July 2001 a "serious flaw" was found in off -the-shelf software that had long been used in systems for tracking U.S. nuclear materials. The software had recently been donated to another country and scientists in that country discovered the problem and told U.S. officials about it.
In which umbrella activity off the shelf components are used for developing the product.
Elaborate on that activity.
III. In October 1999 the $125 million NASA Mars Climate Orbiter an interplanetary weather satellite was lost in space due to a data conversion error.
Find out the reason for the loss and describe what kind of testing would have helped the scientist to avoid the error.
IV. In June 1996 the first flight of the European Space Agency's Ariane 5 rocket failed shortly after launching, resulting in an uninsured loss of $500,000,000.
Find out the reason for the failure. What short note on guidelines to be followed in different phases of software development when developing a critical system.