stages and activities spanning the life of the system from the definition of its requirements to the
termination of its use, covering its conception, development, operation, maintenance support and disposalNOTE 1 Adapted from IEC 61508 and ISO/IEC 15288:2008, definition 4.10.
PD ISO/TS 12911:2012
NOTE 2 Adapted from ISO/TR 18529:2000, Clause 3.
RIBA Plan Of Work 2020
- 0 – Strategic Definition
 - 1 – Preparation and Briefing
 - 2 – Concept Design
 - 3 – Spatial Coordination
 - 4 – Technical Design
 - 5 – Manufacturing and Construction
 - 6 – Handover
 - 7 – Use
 
BS 8536-1:2015 & BS 8536-2:2016 Work Stages
- 0 – Strategy
 - 1 – Brief
 - 2 – Concept
 - 3 – Definition
 - 4 – Design
 - 5 – Construct and Commission
 - 6 – Handover and Closeout
 - 7 – Operation and End of Life
 
Life cycle stages in ISO 22263
Pre-life cycle stages
- Inception – 0 – Portfolio requirements
 - Brief – 1 – Conception of need
 - Brief – 2 – Outline feasibility
 - Brief – 3 – Substantive feasibility
 
Pre-Construction stages
- Design – 4 – Outline conceptual design
 - Design – 5 – Full conceptual design
 - Design – 6 – Coordinated design (and procurement)
 
Construction stages
- Production – 7 – Production Information
 - Production – 8 – Construction
 
Post-construction stages
Maintenance – 9 – Operation and maintenance
Demolition – 10 – Disposal
				
