Software testing is a study carried out to provide information about the products or services to the stakeholders. It also provides and separate view to allow people to understand the natural threats involved in using that software. Different customers require different Software Testing programs. For e.g. a financier would need financial software and a player would need game playing software. Hence when a company produces software, it should be able to assess whether its method appropriate or not to its end customer and software testing allows it to do that.
There are various reasons for bugs in software like development mistakes, interface with earlier / later editions, components interface, etc. Software testing is aimed at examining the rule and also performing it under testing circumstances. Test Management is effective as to a degree it can emphasize bugs in the code, analyze the Software interface with other software components and estimate customer reaction to a product. However, no documentation today actually needed for testing the Software knowledge and ability in his area. Although if you are worried then you can approach the leading organization that is providing you the well qualified ISTQB Certification and quality services from the experts. You can visit to their online portal for more details.