BS EN 60300-3-15 provides guidance for an engineering system’s dependability. It describes a process for realization of system dependability through the system life cycle.
This standard is applicable to new system development and for enhancement of existing systems involving interactions of system functions consisting of hardware, software and human elements.
BS EN 60300-3-15 also applies to providers of sub-systems and suppliers of products that seek system information and criteria for system integration. Methods and tools are provided for system dependability assessment and verification of results for achievement of dependability objectives.
The four main aspects for engineering dependability concerning systems are addressed in terms of:
– Process
– Achievement
– Assessment
– Measurement.
BS EN 60300-3-15 forms part of the framework standards on system aspects of dependability to support BS EN 60300-1 and BS EN 60300-2 on dependability management.
Guidance on dependability engineering is provided for generic systems. It does not classify systems for special applications. The majority of systems in use are generally repairable throughout their life cycle operation for economic reasons and practical applications.
Contents of BS EN 60300-3-15:
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 System dependability engineering and applications
4.1 Overview of system dependability engineering
4.2 System dependability attributes and performance characteristics
5 Managing system dependability
5.1 Dependability management
5.2 System dependability projects
5.3 Tailoring to meet project needs
5.4 Dependability assurance
6 Realization of system dependability
6.1 Process for engineering dependability into systems
6.1.1 Purpose of dependability process
6.1.2 System life cycle and processes
6.1.3 Process applications through the system life cycle
6.2 Achievement of system dependability
6.2.1 Purpose of system dependability achievements
6.2.2 Criteria for system dependability achievements
6.2.3 Methodology for system dependability achievements
6.2.4 Realization of system functions
6.2.5 Approaches to determine achievement of system dependability
6.2.6 Objective evidence of achievements
6.3 Assessment of system dependability
6.3.1 Purpose of system dependability assessments
6.3.2 Types of assessments
6.3.3 Methodology for system dependability assessments
6.3.4 Assessment value and implications
6.4 Measurement of system dependability
6.4.1 Purpose of system dependability measurements
6.4.2 Classification of system dependability measurements
6.4.3 Sources of measurements
6.4.4 Enabling systems for dependability measurements
6.4.5 Interpretation of dependability measurements
Annex A (informative) System life cycle processes and applications
Annex B (informative) Methods and tools for system dependability development and assurance
Annex C (informative) Guidance on system application environment
Annex D (informative) Checklists for System Dependability Engineering
Bibliography
Figure 1 – An overview of a system life cycle
Figure 2 – An example of a process model
Figure A.1 – An overview of system life cycle processes
Figure C.1 – Environmental requirements definition process
Figure C.2 – Mapping system application environments to exposures
