What Exactly are the Techniques of  Software Verification and Validation  www.softwaretestinggenius.com A Storehouse of Va...
Areas Covered  Software Verification and Validation When Combined Together Are   Abbreviated as V & V >>>>>>>>>>>>>>>>>>>>...
What does these Two Provide <ul><li>Verification Ensures that: </li></ul><ul><li>Every Step in the Process of Building </l...
What Kind of Verification  Do we Have ? Firstly Let Us Understand >>>>>>>>>>>>>>>>>>>>>  www.softwaretestinggenius.com  <<...
Major Categories of Verification <ul><li>Dynamic Testing   </li></ul><ul><li>Static Testing </li></ul>There are Two Major ...
Dynamic Testing Firstly Let Us Go Deeper Into  >>>>>>>>>>>>>>>>>>>>>  www.softwaretestinggenius.com  <<<<<<<<<<<<<<<<<<<<<
Dynamic Testing - A Type of Verification  <ul><li>Involves Execution of a System or Component </li></ul><ul><li>Selection ...
Dynamic Testing - A Type of Verification  <ul><li>Functional Testing </li></ul><ul><li>Structural Testing </li></ul><ul><l...
Sub Categories Dynamic Testing <ul><li>Involves Identification & Testing of all Functions of the System as Defined in Basi...
Sub Categories Dynamic Testing <ul><li>It uses Test Cases Designed to Investigate Certain Feature of the System </li></ul>...
Sub Categories Dynamic Testing <ul><li>It is a White Box Testing Expecting Full knowledge of the Implementation of the Sys...
Sub Categories Dynamic Testing <ul><li>Like Functional Testing, it also uses Test Cases Designed to Investigate Certain Fe...
Sub Categories Dynamic Testing <ul><li>Uses Free Selection of Test Cases out of a set of All Possible Test Cases </li></ul...
Sub Categories Dynamic Testing <ul><li>Exhaustive Testing is a Form of Random Testing, Involving Input Test Cases having E...
Static Testing Secondly Let Us Go Deeper Into  >>>>>>>>>>>>>>>>>>>>>  www.softwaretestinggenius.com  <<<<<<<<<<<<<<<<<<<<<
Static Testing - A Type of Verification  <ul><li>Does not Involve Operation of the System or Component </li></ul><ul><li>I...
Static Testing - A Type of Verification  <ul><li>Consistency Techniques  : Meant for Doing Analysis of Consistency </li></...
Static Testing - A Type of Verification  Ensures Correctness of Program Properties Like:   #  Correct Syntax  #  Correct P...
Static Testing - A Type of Verification  Ensures Correctness of Program Properties Like:   #  Correct Typing  #  Correct R...
Static Testing - A Type of Verification  Measures the System Properties Like:   #  Being Error Prone  #  Being Understanda...
What is All About  Validation Testing ? Secondly Let Us Understand >>>>>>>>>>>>>>>>>>>>>  www.softwaretestinggenius.com  <...
When Does Validation Come into Picture <ul><li>It Views the Complete System Exactly Opposite of Verification </li></ul><ul...
What are the Techniques of Validation Testing ? >>>>>>>>>>>>>>>>>>>>>  www.softwaretestinggenius.com  <<<<<<<<<<<<<<<<<<<<<
Techniques of Validation Testing <ul><li>Besides being a Verification Technique it is a Validation Technique as well </li>...
Techniques of Validation Testing Is an Intentional Activation of Faults by  Either Hardware or Software to Observe  the Sy...
Techniques of Validation Testing Also known as Physical Fault Injection  since Faults are Injected into the Physical  Hard...
Techniques of Validation Testing <ul><li>Involves Injection of Errors into the Computer Memory through some Software Techn...
Techniques of Validation Testing Involves Identification of Hazards and  Subsequently Proposing Methods to  Reduce the Ris...
Techniques of Validation Testing Involves using Instructions to Identify  Hazards, Their Root Causes, and Possible  Counte...
Techniques of Validation Testing Goes Beyond Hazard Analysis by  Identifying the Possible Consequences of  Each Hazard and...
Pros & Cons of Verification & Validation <ul><li>Verification and Validation are Quite Time Consuming Processes </li></ul>...
Multiple Quiz Interview Questions as used by Several MNC’s to Evaluate New Testers    and Hundreds of Interview Preparatio...
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What Exactly are the Techniques of Software Verification & Validation

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This Presentation describes the Ins and Outs of Verification and Validation Techniques Practiced by the Software Industry

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What Exactly are the Techniques of Software Verification & Validation

  1. 1. What Exactly are the Techniques of Software Verification and Validation www.softwaretestinggenius.com A Storehouse of Vast Knowledge on Software Testing and Quality Assurance
  2. 2. Areas Covered Software Verification and Validation When Combined Together Are Abbreviated as V & V >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  3. 3. What does these Two Provide <ul><li>Verification Ensures that: </li></ul><ul><li>Every Step in the Process of Building </li></ul><ul><li>the Software Delivers the Correct Product </li></ul>Validation Ensures that: Software Being Developed or Changed Satisfies Functional and All Other Requirements >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  4. 4. What Kind of Verification Do we Have ? Firstly Let Us Understand >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  5. 5. Major Categories of Verification <ul><li>Dynamic Testing </li></ul><ul><li>Static Testing </li></ul>There are Two Major Categories of Verification Testing: >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  6. 6. Dynamic Testing Firstly Let Us Go Deeper Into >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  7. 7. Dynamic Testing - A Type of Verification <ul><li>Involves Execution of a System or Component </li></ul><ul><li>Selection of a Group of Test Cases Consisting of Test Data </li></ul><ul><li>Finding out Output Test Results out of Input Test Cases </li></ul>What Does Dynamic Testing Do ? >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  8. 8. Dynamic Testing - A Type of Verification <ul><li>Functional Testing </li></ul><ul><li>Structural Testing </li></ul><ul><li>Random Testing </li></ul>Sub Categories of Dynamic Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  9. 9. Sub Categories Dynamic Testing <ul><li>Involves Identification & Testing of all Functions of the System as Defined in Basic Requirements Documents </li></ul><ul><li>It is a Black Box Testing Not Expecting that the Tester should have any Knowledge of the Basic Code & Implementation of the System </li></ul>Functional Testing: A Type of Dynamic Testing Contd.….. >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  10. 10. Sub Categories Dynamic Testing <ul><li>It uses Test Cases Designed to Investigate Certain Feature of the System </li></ul>Functional Testing: A Type of Dynamic Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  11. 11. Sub Categories Dynamic Testing <ul><li>It is a White Box Testing Expecting Full knowledge of the Implementation of the System </li></ul><ul><li>Information of the Internal Structure of the System is Used to Design Tests for Checking the Function of Individual Components </li></ul>Structural Testing: A Type of Dynamic Testing Contd.….. >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  12. 12. Sub Categories Dynamic Testing <ul><li>Like Functional Testing, it also uses Test Cases Designed to Investigate Certain Feature of the System </li></ul>Structural Testing: A Type of Dynamic Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  13. 13. Sub Categories Dynamic Testing <ul><li>Uses Free Selection of Test Cases out of a set of All Possible Test Cases </li></ul><ul><li>Uses Randomly Decided to Detect Faults which Go Undetected by Other Systematic Testing Techniques </li></ul>Random Testing: A Type of Dynamic Testing Contd.….. >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  14. 14. Sub Categories Dynamic Testing <ul><li>Exhaustive Testing is a Form of Random Testing, Involving Input Test Cases having Every Possible Set of Input Values </li></ul><ul><li>Although We do Exhaustive Testing at Every Stage of Life Cycle, Complete Verification of the System, is not Possible & Realistic </li></ul>Random Testing: A Type of Dynamic Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  15. 15. Static Testing Secondly Let Us Go Deeper Into >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  16. 16. Static Testing - A Type of Verification <ul><li>Does not Involve Operation of the System or Component </li></ul><ul><li>Involves Manual as well as Automated Testing Techniques </li></ul>Attributes of Static Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  17. 17. Static Testing - A Type of Verification <ul><li>Consistency Techniques : Meant for Doing Analysis of Consistency </li></ul><ul><li>Measurement Techniques : Meant for Doing Measurement of Some Property of the Program </li></ul>Sub Categories of Static Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  18. 18. Static Testing - A Type of Verification Ensures Correctness of Program Properties Like: # Correct Syntax # Correct Parameter Matching Between Procedures Consistency Techniques of Static Testing Contd.….. >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  19. 19. Static Testing - A Type of Verification Ensures Correctness of Program Properties Like: # Correct Typing # Correct Requirements and Translation of Specifications Consistency Techniques of Static Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  20. 20. Static Testing - A Type of Verification Measures the System Properties Like: # Being Error Prone # Being Understandable # Being Well Structured Measurement Techniques of Static Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  21. 21. What is All About Validation Testing ? Secondly Let Us Understand >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  22. 22. When Does Validation Come into Picture <ul><li>It Views the Complete System Exactly Opposite of Verification </li></ul><ul><li>It Focuses on Smaller Sub-Systems </li></ul>Validation comes Into Picture at the End of the Development Cycle >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  23. 23. What are the Techniques of Validation Testing ? >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  24. 24. Techniques of Validation Testing <ul><li>Besides being a Verification Technique it is a Validation Technique as well </li></ul><ul><li>Involves use of Mathematical and Logical Techniques to: Express, Investigate, & Analyze the Specification, Design, Documentation and Behavior of Hardware as well as Software </li></ul>Formal Methods : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  25. 25. Techniques of Validation Testing Is an Intentional Activation of Faults by Either Hardware or Software to Observe the System Operation under such Faulty Situations Fault Injection : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  26. 26. Techniques of Validation Testing Also known as Physical Fault Injection since Faults are Injected into the Physical Hardware Hardware Fault Injection : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  27. 27. Techniques of Validation Testing <ul><li>Involves Injection of Errors into the Computer Memory through some Software Techniques </li></ul><ul><li>It is a sort of a Simulation of Hardware Fault Injection </li></ul>Software Fault Injection : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  28. 28. Techniques of Validation Testing Involves Identification of Hazards and Subsequently Proposing Methods to Reduce the Risk of the Hazards Dependency Analysis : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  29. 29. Techniques of Validation Testing Involves using Instructions to Identify Hazards, Their Root Causes, and Possible Countermeasures Hazard Analysis : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  30. 30. Techniques of Validation Testing Goes Beyond Hazard Analysis by Identifying the Possible Consequences of Each Hazard and Their Probability of Occurrence Risk Analysis : A Technique of Validation Testing >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  31. 31. Pros & Cons of Verification & Validation <ul><li>Verification and Validation are Quite Time Consuming Processes </li></ul><ul><li>They Involve Planning from the Beginning, the Development of Test Cases, Actual Testing, and Analysis of Testing Results </li></ul><ul><li>Best Practice is to have Persons Dedicated to V & V and made to operate with the Designers </li></ul>>>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  32. 32. Multiple Quiz Interview Questions as used by Several MNC’s to Evaluate New Testers and Hundreds of Interview Preparation Questions on Quicktest Professional www.softwaretestinggenius.com A Storehouse of Vast Knowledge on Software Testing and Quality Assurance >>>>>>>>>>>>>>>>>>>>> www.softwaretestinggenius.com <<<<<<<<<<<<<<<<<<<<<
  33. 33. Thank You
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