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Non Functional Testing

Non Functional Testing. Stevan Zivanovic Senior Consultant Probatur Ltd (www.probatur.com). Outline. What is NFT? The Myths Some Of The Challenges The Benefits What should you do?. What Is NFT ?. Non Functional Testing Testing of those requirements that do not relate to functionality

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Non Functional Testing

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  1. Non Functional Testing Stevan Zivanovic Senior Consultant Probatur Ltd (www.probatur.com)

  2. Outline • What is NFT? • The Myths • Some Of The Challenges • The Benefits • What should you do?

  3. What Is NFT? • Non Functional TestingTesting of those requirements that do not relate to functionality • Currently Testing Standards show fifteen key categories, including Performance, Reliability, Security and Usability (www.testingstandards.co.uk)

  4. First, The Myths • Non Functional testing can only be performed after functional testing • Only highly technical testers can perform this type of testing • The Return on Investment is not favorable

  5. NFT only at the end • Significant NF testing can be performed even before software is fully developed • Can iteratively develop appropriate tests • Can assist the functional testing • De-risk final testing

  6. Too Technical! • Principles of testing are unchanged • Modern tools are starting to make scripting more accessible • Often a company will have the technical resources available to assist testers • With the right people, governance and financial backing everything is possible

  7. ROI • Often cited is the cost of testing - is it worth it! • Recent security error on banking site closed the site for ten hours (http://news.bbc.co.uk/1/hi/business/3984845.stm) • Large retailer extended sales for days due to 2 hour performance related shutdown (http://www.vnunet.com/News/it/1159852) • Legal requirements - e.g. data protection and the Disability Discrimination Act

  8. Some Of The Challenges • Environments - cost, complexity • Planning - juggling act between availability of suitable functionality, environment and people • Requirements - inability to define clearly and measurably what is required - Apply SMART • Application - stability, lack of CM, late changes • What is NFT?

  9. The Benefits • Have confidence in your system • Have confidence in your offering to your customers • Easing of support workload • Better planning of infrastructure • Demonstrate conformance to legal requirements • Keep your IT group happy!

  10. What should you do? • Risk asses the areas as applied to your business • Consider the investment in people and infrastructure that you will require • Consider external resourcing

  11. Non Functional Testing Stevan Zivanovic Senior Consultant Probatur Ltd 01223 744778 / 07748 902659 stavan@probatur.com www.probatur.com

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