Effectiveness of software testing techniques in enterprise: a case study

Table 3. The advantages of Validation and Verification 
Validation 
Verification 
During verification if some defects are missed then 
during validation process it can be caught as failures. 
Verification helps in lowering down the count of the 
defect in the later stages of development. 
If during verification some 
specification is 
misunderstood and development had happened then 
during validation process while executing that 
functionality the difference between the actual result 
and expected result can be understood 
Verifying the product at the starting phase of the 
development will help in understanding the product in 
a better way. 
Validation is done during testing like feature testing, 
integration testing, system testing, load testing, 
compatibility testing, stress testing, etc. 
It reduces the chances of failures in the software 
application or product. 
Validation helps in building the right product as per 
the customer’s requirement and helps in satisfying 
their needs. 
It helps in building the product as per the customer 
specifications and needs. 
Prepared by author according to Source: (Graham et al., 2008) 
Besides validation and verification activities there are few more QA activities, such as definition of 
quality criteria and quality reporting (Hass, 2008). Validation and verification and their purpose have 
been discussed already. Although, their role in the process of QA activities remains uncovered. As the 
figure (see Figure 1, page 17) below shows, each of activity has a specified order in a process. 
Validation can be performed in parallel with verification as it was noted before. 
Figure 2. The process of Quality Assurance Activities 
Source: (Hass, 2008) 
Thus, quality criteria should be defined in the first place. These attributes of software development 
process are aimed to explicate the particular quality factor(-s) in order to express the quality level that 
must be reached (Hass, 2008; McCall et al., 1977). The elicitation of the right criteria is a complex 
process which depends on the business needs and the software type. McCall et al. (1977) further 
proposes the grouping of candidate quality factors into a smaller, concise number of elements by 
following aspects: