Compatibility Testing Methodology

Web applications need to be tested for compatibility on various browsers, browser versions, and OS versions.

Compatibility testing is a top priority in today’s online and mobile world and involves two distinct aspects – desktop browser compatibility and mobile device testing.

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Why is Browser Testing Needed?

  • New browsers are always being developed
  • Users can be fickle about browsers
  • Trends change and an eye to the future is needed

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Let QA Mentor Handle It

  • We study the browser variations
  • We keep up with the latest trends
  • We focus on the most used browser and OS combinations
  • Our knowledge can save time and money by testing the right things at the right time

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Variations Between Browsers

  • Font size and style– Some browsers overwrite font specifications
  • HTML encoded characters
  • Alignments – Image, text, bullets, radio buttons, checkboxes, header/footer, and page alignments can all be affected
  • Form Data sent to a database- Different browsers may not send information correctly, or at all
  • HTML 5 Video Format – IE and Firefox require specific formats, while Chrome is more flexible
  • External Plugins – Such as for printing

  • JavaScript– Pages should be tested with JavaScript enabled and disabled to verify behavior
  • CSS, HTML, XHTML Validation – Lack of adherence to W3 Consortium standards could make them incompatible with search engine crawlers
  • Page Zoom
  • Flash Content
  • Cookies – Pages should be tested with cookies enabled and disabled to verify behavior
  • Ajax and JQuery Requests

Why Perform Mobile and
OS Testing

  • Mobile apps are increasingly complex
  • Mobile users are intolerant of bugs
  • Mobile competition is fierce
  • There are many combinations of device and OS
  • Networks vary across the world
  • Security is an increasing concern

Successful mobile compatibility testing requires the right tools, optimal platform choices, logical automation, adequate performance testing, and regression testing of older platforms when necessary. QA Mentor’s Compatibility Lab was designed specifically for this kind of testing and is fully equipped to handle it.

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