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Entries tagged with: Dave Butler

  • by Dave Butler, CFSE
  • Friday, October 19, 2012
  • Software

IEC 61508 Compliant Module Testing: Part 2

Last week you learned about what exactly a module is, and examples of different types of modules. Now we will move on to interfaces, the need for module testing, and code coverage requirements.

An interface, such as the 3D printer’s communication interface, or the format of the 3D data…

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  • by Dave Butler, CFSE
  • Thursday, October 25, 2012
  • Software

IEC 61508 Compliant Module Testing: Part 3

The Test Plan

Assessment requires evidence that module tests are designed properly, run properly, and have been successfully run. Documented test results are also required.  In order to meet these requirements it is generally a good idea to document a test plan for each module.  Information that applies…

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  • by Dave Butler, CFSE
  • Tuesday, November 06, 2012
  • Software

IEC 61508 Compliant Module Testing: Part 4

Part 3 covered the design of tests, resulting in one or more Module Test Plans.  To execute a test plan, one would start with the test plan and a test results template (which could be a copy of the test plan as indicated previously), document the general test information…

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  • by Dave Butler, CFSE
  • Friday, October 12, 2012
  • Software

IEC 61508 Compliant Module Testing: Part I

3D printers are cool!  I watched a TED talk this past year about them.  I know they have been around for over 30 years, but I still think they’re cool.  As I watched, I thought of the wheel for my dishwasher’s roll-out rack, which had…

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