1. PRESENTATION TO CEN/TC 319 VENICE - APRIL 13, 2005
Presented by
Thomas Van Hardeveld, M.Sc. P. Eng.
Convenor, IEC/TC56/WG3 Dependability management
Presentation to CEN/TC 319

2. Objectives To describe challenges for maintenance
To explain the mandate of IEC/TC56 with respect to dependability, especially as it relates to maintenance
To describe the structure of dependability standards
To propose a basis for liaison and cooperation between IEC/TC56 and CEN/TC 319
Presentation to CEN/TC 319

3. Challenges for maintenance
Perception of maintenance as secondary to reliability and other factors
Divided organizationally and usually no single point of responsibility
Challenges caused by outsourcing of maintenance activities
Confusion caused by different philosophies and approaches
No accepted framework for maintenance management
Lack of comprehensive international standards
No consistent terminology
Presentation to CEN/TC 319

4. Definition of dependability
Linkage to ISO 9000:2000 standards: TC56 is horizontal committee, applicable to all items
Dependability (proposed new definition)
ability of an item to meet its success criteria, under given conditions of use and maintenance
Notes
The success criteria may be attributes or variables, expressed or implied, and may include, availability of the required service, safety, integrity, security, etc.
An example of an implied success criterion is, that the item shall be safe for the user, other interested parties, property and the environment.
Dependability is achieved by due attention to failure prediction, prevention and mitigation
Presentation to CEN/TC 319

5. Aspects of dependability
RELIABILITY
Incorporated into design and enabled by operations and maintenance
AVAILABILITY
Enabled by design, operation and maintenance
OPERATION
MAINTENANCE
DESIGN
MAINTAINABILITY
Enabled by design and implemented during maintenance
MAINTENANCE SUPPORT
Considered during design and implemented and optimized during maintenance
Presentation to CEN/TC 319

6. Structure of dependability standards
Dependability management /2
CORE
Vocabulary
PROCESS
General
dependability
Life cycle aspects
Reliability/
availability
Maintainability
Maintenance and
maintenance support
Risk
management
System
dependability
SUPPORT
Presentation to CEN/TC 319

7. Structure of maintenance-related standards
Dependability management /2
CORE
PROCESS
Maintainability
Maintenance and maintenance support
/14
SUPPORT
Maintainability requirements
Reliability Centered Maintenance
Maintainability studies
NWI on Spare parts?
NWI on
Contracting of maintenance?
Testability and
diagnostic testing
Maintainability verification
and collection, analysis
and presentation of data
NWI on Maintenance
performance?
Presentation to CEN/TC 319

8. Framework for IEC
Management responsibility for maintenance and maintenance policy
Maintenance resources: people, parts and materials, support resources, information systems, etc.
Maintenance processes: management, support planning, preparation and execution
Dependable equipment
Maintenance assessment and improvement
Presentation to CEN/TC 319

9. Relationship between IEC/TC56 and CEN/TC319
Following items are for discussion purposes
Work towards harmonized set of maintenance-related standards
Common terminology and framework
Focus for IEC/TC56 more on linkage to other aspects of dependability and higher level aspects of maintenance
Focus for CEN/TC 319 on more specific European concerns
Presentation to CEN/TC 319