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196 Part III: Inspection and Test
finish required. Precision microscopes are used to measure the indentations; these
usually have a magnification of around ×500 and measure to an accuracy of ±0.5
micrometers (Surface Engineering Forum 2008).
5. VERIFICATION OF SOFTWARE FOR TEST EQUIPMENT
Identify and define basic steps to ensure that
the software for test equipment adequately
and correctly performs its intended
functions by safeguarding, functional checks,
comparison of test results and identification
of attributes and parameters. (Knowledge)
Body of Knowledge III.D.5
Part III.D.5
Verification of software for test equipment is a process for determining whether
the software for these test equipment fulfill the requirements, purpose, and accuracy
of the test intended.
Software Verification Objectives
• Software verification determines that the software performs its
intended functions correctly.
• Ensure that the software performs no unintended functions.
• Measure and assess the quality and reliability of software.
• As a systems engineering discipline, software verification also
assesses, analyzes, and tests the software on:
– How it interfaces with systems elements
– How it influences performance
– How it reacts to stimuli from system elements
Basic principles for software testing:
• Define the expected output or result, including the attributes and
parameters.
• Define how the software should function to get the results.
• Compare test results with real results to make sure of the consistency
and accuracy of the software
• Include test cases for invalid or unexpected conditions.