|
High Integrity Systems & Software
In relation to Safety, software cannot be
treated as an independent entity: software forms an integral part of the
majority of complex systems. Many Standards, such as IEC 61508, require
that the required safety integrity levels (SILs) for safety functions
are derived on the basis of risk assessment at the system level. This
has to be carried out before the design of the safety-related system,
because the required SIL has a significant impact on the
design/development process. The required SIL will affect the design
requirements for hardware and software safety integrity (e.g.
reliability, fault tolerance, software methods) as well as having an
impact on more general aspects such as functional safety management and
assessment.
Safety Assurance Services have a thorough
understanding and familiarity with the standards and assurance process
for High Integrity / Safety Related Systems. The term ‘Safety-Related
System’ (SRS) denoting a combination of hardware, electronics, software
and people that together operates in response to its inputs to ensure
safety. We can support your organisation in areas such as:
-
Assessment of the appropriate SIL for
software, based on a system level assessment
-
Assisting in defining appropriate design
techniques and methods relevant to the assigned SIL
-
Auditing the development lifecycle and
software against the required SIL
-
Advice on approach to assurance for
previously developed software or modification to legacy software or
COTS software
-
Independent Software Safety Auditor role
-
Development of Software quality procedures
|
 |
