IEC 61508 - Module Testing requirements



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Aruna Ranaweera (aruna_ranaweera(at)hotmail.com)
Wed, 20 Feb 2002 22:22:32 +0600


Hi All, I am trying to understand IEC 61508 requirements. Hope somebody in this list can help. We do a lot of V&V work here mostly per US FDA requirements. I am particularly interested in Unit Level testing. I believe the term used in the standard is 'module' for 'unit'. This is the question I have: In clause 7.4.7 Requirements for module testing refers to tables A.5, B.2, B.3 and B.6. But in A.5 it is 'module testing and integration' and these are the requirements: Technique/Measure SIL1 SIL2 SIL3 SIL4 1. Probabilistic testing -- R R HR 2. Dynamic analysis and testing R HR HR HR 3. Data recording and analysis HR HR HR HR 4. Functional and black box testing HR HR HR HR 5. Performance testing R R HR HR 6. Interface testing R R HR HR But I read some course notes from a UK university which has separated them like this: Module testing: Technique/Measure SIL1 SIL2 SIL3 SIL4 1. Probabilistic testing -- R R HR 2. Dynamic analysis and testing R HR HR HR 3. Data recording and analysis HR HR HR HR Integration testing: Technique/Measure SIL1 SIL2 SIL3 SIL4 1. Functional and black box testing HR HR HR HR 2. Performance testing R R HR HR 3. Interface testing R R HR HR 4. Data recording and analysis HR HR HR HR Is this correct? If so what is the basis for it? Thanks, Aruna Ranaweera Orion Systems Inc. 525, Avis Drive, Suite 3 Ann Arbor, MI 48108 USA Phone: (734) 668 9947 Fax: (734) 668 1780 _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com


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