However, all these software's have to undergo rigorous testing before being commercialized or being used. On early days, this testing was done manually with a software tester trying to do different things with the software, test for the reliability and other aspects of the software for a certain period of time, check whether the codes for the software are looped correctly and then the software is released.

It took plenty of time for this testing process to be done, so the engineers came up with the idea of software's that can test different software  ’s. And these software’s were then generally called as software testing tools. There are plenty of websites offering different software testing tools to a software engineer to test their software.
The variety of the softwa  re testing tools ranges from the software testing tools that have an open source code to the ones that are used to testing security software systems.

Indian girl's innovation: Charge phone through its radiation

By      siliconindia news bureau 

Guwahati: A school girl has developed a technology which will convert the radiation given out by mobile phones into heat and relay it as electrical energy back to the battery inside. Asmita Rekha Bora, a class XI science student of Kendriya Vidyalaya, Khanapara in Guwahati has come out with this charger.

The   16-year-old's theoretical concept - backed by a somewhat crude model - won her the second prize at the 37th Jawaharlal Nehru Science Exhibition held in Chennai on October 13-14. A panel of judges from IIT Chennai, had labeled her discovery as something that could revolutionize the mobile phone industry, according to Asmita's Physics teacher Devangshu Dev.

Dev had helped Asmita develop the model for a mere Rs. 800. So how did Asmita come up with this idea? "I got the idea while surfing the Net for the ill-effects of microwave radiation on human health. I realized this radiation was going to waste and decided to tap it for converting to heat energy," said Asmita to Hindustan Times.

Asmita, daughter of Geological Survey of India officer Arup Bora, plans to fine-tune her model in the next few months. "My model has been selected for a major NCERT show in New Delhi in 2010. This will open the door for a bigger scientific show in Moscow," according to Yahoo News.

A ticket to Moscow could make Asmita's auto-charger ready for commercial use.