Why is software testing needed?

Errors in software are so harmful that can affect economics. According to statistics, the expenses from software errors account 0,6% of GDP which is 100 billion dollars annually. One half of this sum is covered by users, another part – by software developers.
Many people misunderstand the meaning of the term “software testing” considering it as a hi-technology jargon to determine a simple thing. However such understanding is wrong.
So what is software testing?
According to the specialists of BelHard Development company testing is a process aimed at confessing accuracy, completeness, security and quality of developed software. Testing is often held not only to make sure that the whole project works properly, but also to reveal possible hidden errors, analyze and eliminate their reasons.
While testing web-applications a range of essential positions are taken into consideration. The most important among them are the following:
• Productivity testing. This means that web-application must deal with processing of quite big amounts of data especially at times when many users get access to the same web page at the same moment. Besides the site must be able to process input data at the same time.
• Security testing. Such testing is held with help of variable methods. One of such methods is insert of inner page without registration screen. This is done to deceive security system. What is more the possibility of deceiving the SSL protocol is explored.
Testing is a constantly improving process. Exploring and estimating software companies are trying to eliminate all errors.