Testing Economics

MBT Users Report Triple Benefit & 59% Bug Reduction

According to the recent model-based testing user survey (see here), the respondents saw on the average a 59% reduction in escaped bugs, 17% reduction in testing costs, and 25% reduction in testing time. What do these figures mean? Let's say that a (software) product has 100 defects (that can manifest themselves) when it enters the testing phase, ...

Testing Economics: Why Non-Defect Tests Matter

Let's assume (this obviously a much simplified setting) that you are planning to release a new product version that will generate $1mn in sales. There may or may not be one critical bug left in the version. If there actually is a critical bug, this will cost to you in terms of product replacements, customer supports and customer disloyalty total ...