Safety-Critical Systems 6 Safety and Quality Management and Certification

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Safety-Critical Systems 6Safety and Quality
Management and Certification

• T 79.5303

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Safety Management
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Safety Documentation
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Quality Management

• Systematic actions to gain quality,which is
  essential in the life cycle of a safety system.
• Quality Assurance
• - concentrates that manufacture prosess and
  work are performed correctly.
• Quality Control
• - ensures that product is correct.

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ISO 9000Quality Management System

• International Organisation for Standardisation
  (ISO) created the Quality Management System (QMS)
  basis already in 1987.
• ISO 90011987 Model for quality assurance in
  design, development, production, installation and
  servicing.
• ISO 90021987 Model for quality assurance in
  production, installation and servicing.
• ISO 90031987 Model for quality assurance in
  final inspection and test covered only the final
  inspection of finished product.

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ISO 9001

• ISO 90002000 combines the three standards 9001,
  9002, and 9003 into one, now called 9001.
• Design and development procedures are required
  only if a company does in fact engage in the
  creation of new products.
• New version has a goal to improve effectiveness
  via process performance metrics numerical
  measurement of the effectiveness of tasks and
  activities.

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ISO 9001

• A company or organization that has been
  independently audited and certified to be in
  conformance with ISO 9001 may publicly state that
  it is "ISO 9001 certified" or "ISO 9001
  registered."
• Certification to an ISO 9000 standard does not
  guarantee the compliance (and therefore the
  quality) of end products and services rather, it
  certifies that consistent business processes are
  being applied.
• ISO 9001 is not enough and more strict systems
  are needed. These are described on norms, which
  have to be followed according to get system
  certificated.

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ISO 9001 System

• The requirements in ISO 9001 include
• a set of procedures that cover all key processes
  in the business
• monitoring manufacturing processes to ensure
  manufactures are producing quality produce
• keeping proper records
• checking outgoing product for defects, with
  appropriate corrective action where necessary
• regularly reviewing individual processes and the
  quality system itself for effectiveness.

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Certification

• Process to indicate conformance with a standard
  checked by an authorised body.
• National Safety Authority, Minister of
  Transportation
• International institutes and certified /notified
  bodies in EU
• Follow given guidelines, like DO-178B, IEC 61508
  or CENELEC norms.

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Example in Avionic systemDO-178B Certification

• DO-178B provides the aviation community with
  guidelines for developing software for airborne
  systems and equipment that complies with accepted
  airworthiness requirements.
• Five software levels (A through E), Level A is
  the most stringent.

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DO-178B Certification
The number of objectives to be satisfied. In the
standard, "with independence" refers to a
separation of responsibilities where the
person(s) who verify an objective must not be the
developers of the item in question. In some
cases, an automated tool may be equivalent to
independence.
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Commercial Development

• Language and toolset specially designed for
  high-assurance software
• Spark Ada
• Further information
• www.praxis-his.com/sparkada