Here are five frequently asked questions that every PM needs to read:

“To err is human, but to really foul things up you need a computer.”

- Paul Ehrlich

In software development, an Issue or Bug is a glitch in your software system that causes the program to behave in a way other than designed. Issues can range from the show stopper, a fatal error that causes irreparable damage to your software system, to the very minor glitch. Obviously, each issue in the system is not going to have the same importance, or urgency, attached to it. Critical issues, the show stoppers mentioned above, need to be solved first before you can do anything else. Lower urgency issues are the minor ones, which you or your team can put off until time permits. 

Building test cases is about doing your best to find the worst in a program in order to deliver a quality product to the customer. Without a well-designed and executed test plan, the results can be catastrophic and very costly. For example,because of an error in the software, the first flight of the Ariane 5 rocket resulted in its complete destruction and the loss of four satellites at a cost of more than $370 million.

In the U.S. alone, software bugs cost the economy $59 billion2 back in 2002. Clearly, software defects must be found and corrected before unleashing new programs to the customer. This eBook provides you with a basic understanding of software test cases. In addition, the eBook describes proven methods for building test cases that uncover the most defects with the minimum of time, effort and money.

http://www.elementool.com/ebook/SoftwareTestCases.pdf