Verification planning

By producing a quality plan or a verification plan that identifies the verification stages from product conception to delivery and further as appropriate, and refers to other documents that define the specific requirements at each stage... 

The design verification plan should be constructed so that every design requirement is verified and the simplest way of confirming this is to produce a verification matrix of requirement against verification methods. You need to cover all the requirements, those that can be verified by test, by inspection, by analysis, by simulation or demonstration, or simply by validation of product records. For those requirements to be verified by test, a test specification will need to be produced. The test specification should specify which characteristics are to be measured in terms of parameters and limits and the conditions under which they are to be measured. 

The verification plan needs to cover some or all of the following details as appropriate A definition of the product design standard which is being verified. 

As part of the verification plan, you should include an activity plan that lists all the planned activities in the sequence they are to be conducted and use this plan to record completion and conformance progressively. The activity plan should make provision for planned and actual dates for each activity and for recording comments such as recovery plans when the program does not proceed exactly as planned. It is also good practice to conduct test reviews before and after each series of tests so that corrective measures can be taken before continuing with abortive tests (see also under Design validation). ... 

The verification plan should be approved by the designers and those performing the verification activities. Following approval the document should be brought under document control. Design verification is often a very costly activity and so any changes in the... 

Verification of some characteristics may only be possible by calculation rather than by test, inspection, or demonstration. In such cases the design calculations should be checked either by being repeated by someone else or by performing the calculations by an alternative method. When this form of verification is used the margins of error permitted should be specified in the verification plan. 

To accomplish this, you need to specify either in the quality plan or the documented procedures, the inspections and tests you intend to carry out to verify that the product meets specified requirements. In Part 2 Chapter 4 there is a description of a Design Verification Plan and this includes a specification of the tests and inspections to be performed on each production item as a means of ensuring that the qualified design standard is being maintained. This requires that you produce something like an Acceptance Test Plan which contains, as appropriate, some or all of the following ... 

The IAEA will gradually phase in all the elements of the ongoing monitoring and verification plan, which consists of a package of activities and techniques such as ... 

RFQ Request For Quotation DVP R Design Verification Plan and Report ° PV Process Validation EDI Electronic Data Interchange ° PFMEA Process Failure Modes and Effects Analysis SPC Statistical Process Control MSDS Material Safety Data Sheet DVP Design Verification Plan CFMEA Concept Failure Modes and Effect Analysis DFMEA Design Failure Modes ans Effect Analysis. 

The purpose of verification is to ensure that the activities for each safety lifecycle phase, as determined by verification planning, have, in fact, been carried out and that the required outputs of the phase, whether they be in the form of documentation, hardware or software, have been produced and are suitable for their purpose. 

ID Function Failure condition/ mode (hazard description) Phase Effect of failure condition Consequence Severity Justilicalion Qualitative objective Predicted failure probability Verification planned/ achieved... 

ID System Function Failure condition/ mode Severity Qualitative objective Verification planned... 

From the guiding standards we can extract verification planning related outputs as... 

RTCA/DO-178C (Appendix A) could have the S/W Verification Planning-related outputs extracted into Table 9.11. 

A-1 The SAV lifecycle(s), including the interrelationships between the processes, their sequencing, feedback mechanisms, and transition criteria, is defined. O o o SAV Verification Plan 11.3 ... 

The hardware design lifecycle processes are defined. o o Hardware Verification Plan 10.1.4 HC2 HC2 HC2 HC2... 

The means of compliance of the hardware design assurance objectives, including strategies identified using guidance in Section 2.3.4, are proposed to the certification authority. o o Hardware Verification Plan 10.1.4 HC2 HC2 HC2 HC2... 

With reference to Table 9.11, for Level A and Level B S/W, a SAV Verification Plan is required, meeting the following objectives ... 

Hardware Verification Plan, meeting the following objectives ... 

Compliance with the Verification Plan (including meeting the Acceptance Test Criteria). 

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