What is Validation Testing
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Devstringx Technologies is the fastest-growing software testing company in 
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Validation testing is the process of assessing a new software product to 
ensure  that its performance matches consumer needs. Product 
development teams  might perform validation testing to learn about the 
integrity of the product itself  and its performance in different environments. 
Developers can perform validation  testing themselves, or collaborate with 
quality assurance professionals, external  validation testing professionals, or 
clients to identify elements of the code to  improve. Developers can also 
combine this type of testing with other useful  techniques like product 
verification, debugging, and certification to help ensure  the product is ready 
for the market.
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Software validation can help product development teams ensure their product can 
satisfy  customer needs and expectations. Validation testing can also help software 
developers  identify and fix coding bugs or address other areas of improvement 
before launching the  product. A product that satisfies customer needs from its initial 
introduction to the  market may be more likely to gain positive reviews, perform well 
and improve company  reputation. Ultimately, this can improve sales and increase 
company revenue.
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Validation testing is a complex process that involves finding and testing every 
user  need or requirement to ensure they function well. Here are the basic 
phases of  validation testing:
Production
Design qualification  
Installation qualification  
Operational qualification  
Performance qualification
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Here are four important types of validation testing and how they 
work:
Unit testing  
Integration 
testing  System 
testing  Smoke 
testing  Sanity 
testing
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Unit testing: Unit testing is a form of validation testing that involves assessing small 
 pieces of code individually. Units can include pieces of code like functions, 
methods,  procedures, modules, or objects. Testing these units separate from each 
other can help  ensure that each is performing well.
Integration testing: After performing unit testing to if each unit of code within the  
software is functioning correctly, software development teams can run integration 
testing  to learn about how well the units function once they integrate them 
together into a larger  system. Specifically, developers can ensure that data flow 
across modules is successful.
System testing: Also known as system-level testing or system-integration testing, 
this  type of validation testing can assess the software as a complete system. This 
can help  confirm that the product functions according to the end-to-end system 
specifications.  Most forms of system testing involve black box validation testing 
techniques.
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Here are three specific subcategories of system testing techniques:
Smoke testing: Smoke testing involves testing the essential functional elements of a  
software product. For example, smoke testing for a music library application might 
involve  assessing the user's ability to log in, search for music, listen to music, and 
add it to a  personal music library. Apart from that, we have written a detailed blog 
on what is smoke  testing.
Sanity testing: After smoke testing, developers may make changes to the software 
code,  then perform sanity testing to assess the functionality of the software 
following those  code changes. we have also written a blog on what is sanity testing.
Regression testing: Regression testing is the final step in the system testing 
process. It  involves finding and fixing any new bugs that may arise from changes 
made in the  previous testing steps to ensure that the entire software system still 
functions as it  should.
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