Economics of Testing
The price of defects increases as soon as the product moves on the area of use. If a defect is founded previously of area use, the price of alter to amend the fault rises impressive. The reason of it is that more than one previous stage of design, coding and software testing may have to be repeated.
If the fault happens at the time of area use, the potential price of the fault might be disastrous. If such situation occurs that faults present in documentation are not detected, then development based on that documentation might beget a lot of related faults which augment the influence of the original defect.
Testing on early stages can forestall fault multiplication. You should carefully analyse specifications during test preparation.
So the price of software testing is commonly lower than the price associated with main faults (for example, bad quality of the product and/or fixing faults), but some companies have figures to corroborate this.
The Price of Software Quality
Intelligence software managers realise that testing is an investment in quality. Intelligence test managers have learned how to manage that investment sagely. In such cases, the test investment produces a positive return, fits within the overall project schedule, has quantifiable findings, and is seen as a definite contributor to the project.
The prevention of the defect and Causal Analysis
The prevention of the defect is more complicated concept to measure than to remove it. Defecting and fixing defects is critically significant. To make important quality amendment, you should identify the reasons of defects and take actions to remove it.
The prevention of the defect not only abates the price of development but abates the development time as well. One significant point in success is the participation of the producers in amending their own working process. Defects found in later stage are very hard to fix. They should be precluded in an early stage to elude predicaments.