Verification and Validation: Definition, Differences, Details:
The terms ‘Verification‘ and ‘Validation‘ are frequently used in the software testing world but the meaning of those terms are mostly vague and debatable. You will encounter (or have encountered) all kinds of usage and interpretations of those terms, and it is our humble attempt here to distinguish between them as clearly as possible.
It is entirely possible that a product passes when verified but fails
when validated. This can happen when, say, a product is built as per
the specifications but the specifications themselves fail to address the
user’s needs.
Original Content : http://softwaretestingfundamentals.com/verification-vs-validation/
Non technical stuff - R. K . Narayan's book reviewed here - http://kavithasownblog.blogspot.in/2014/09/waiting-for-mahatma-book-review.html
The terms ‘Verification‘ and ‘Validation‘ are frequently used in the software testing world but the meaning of those terms are mostly vague and debatable. You will encounter (or have encountered) all kinds of usage and interpretations of those terms, and it is our humble attempt here to distinguish between them as clearly as possible.
| Criteria | Verification | Validation |
| Definition | The process of evaluating work-products (not the actual final product) of a development phase to determine whether they meet the specified requirements for that phase. | The process of evaluating software during or at the end of the development process to determine whether it satisfies specified business requirements. |
| Objective | To ensure that the product is being built according to the requirements and design specifications. In other words, to ensure that work products meet their specified requirements. | To ensure that the product actually meets the user’s needs, and that the specifications were correct in the first place. In other words, to demonstrate that the product fulfills its intended use when placed in its intended environment. |
| Question | Are we building the product right? | Are we building the right product? |
| Evaluation Items | Plans, Requirement Specs, Design Specs, Code, Test Cases | The actual product/software. |
| Activities |
|
|
- Trust but Verify.
- Verify but also Validate.
Original Content : http://softwaretestingfundamentals.com/verification-vs-validation/
Non technical stuff - R. K . Narayan's book reviewed here - http://kavithasownblog.blogspot.in/2014/09/waiting-for-mahatma-book-review.html
This folder contains guidelines and all necessary forms and protocols for a FormWeigh.Net, FreeWeigh.Net, BalanceLink, SQC14 and PC Volume validation
ReplyDeleteclick here More..........
Development activities and outcomes must be clearly defined, documented, verified, and validated against the organization's process. The goal of this approach is to give medical device makers enough rope to determine how to best ensure public safety. But in practice, the effect has been that organizations have enough rope to hang themselves. This is because the requirements, expressed in FDA 21 CFR, represent extensive planning and testing, which require validation. The following examples are just a fraction of the total challenges software engineers must overcome:click here
ReplyDelete