AP-227

ISO 10303-227 - Plant Spatial Configuration, Ed. 1 and Ed.2

Sponsor	PlantSTEP, Inc. (http://cic.nist.gov/plantstep/) (USA)
Web Site	http://cic.nist.gov/plantstep/
How to Obtain	Current release
Contact	Mark Palmer, 301-975-5858 or mark.palmer@nist.gov
Usage	File exchange using STEP Part 21 format text files Exchange of 3D plant design models Import and export of equipment models Import and export of 3D piping models
Scope	ISO 10303-227 is an application protocol for the exchange of 3D plant design information. AP 227 places emphasis on piping and HVAC design and includes the physical and functional characteristics of the plant items and references to specifications and stream design cases. Specifies the spatial configuration information of process plants which includes the shape, spatial arrangement and other characteristics of the plant piping systems. Exchange of piping components and equipments designs Exchange of piping assemblies and systems spatial layout, with reference to catalogs Exchange of interference analysis results Exchange of changes to piping systems and plant layout Exchange of piping fabrication and installation information Exchange of modules of plant designs Exchange of as built plant configurations Pipe shop fabrication, inspection, and installation Piping and HVAC flow analysis Piping stress and flexibility analysis Cableway spatial layout and installation Ship piping, HVAC and cableway system design and installation
Characteristics	See Interoperability Tutorial for details on terms used below.
	*Domain*	Industrial Process Facilities
	*Standard Type*	Traditional
	*Standards Process*	Standardize then Implement.
	*Intellectual Property (IP)*	Royalty-free usage of international standard purchased from ISO.
	*Cost of one interface*	Unknown
	*File Format*	STEP Part 21 files
	*Focus*	Focused on specific data exchanges related to piping and HVAC systems (see above)
	*Scope*	Core STEP architecture is re-usable by multiple domains. AP-227 is targeted towards piping and HVAC systems.
	*Scalability*	STEP architecture is complex and expensive to implement in software systems
	*Extensibility*	Data model and exchange format fixed by International Standard
	*Model Content*	In depth data model for piping and HVAC systems.
	*Usage*	Primary usage is exchange of data in large data warehouses.
	*Exchange Content*	Data only (data model information contained in separate EXPRESS schema definition files).
	*Data model approach*	Data model uses abstract domain approach which requires application mapping to abstract terminology.
Benefits	Improved workflow, greater productivity, and accelerated development Reusability of data, Sharing and exchanging of data, Lifetime data availability, Integrity of data Multi-participant configuration management and information retrieval at varying levels of detail Enhances internal collaboration and control, etc.
Status & Plans	Initiated 1994 Ed. 1 - International Standard (2001) Ed. 2 - Draft International Standard (2003) From EXPRESS to XML?
Software	CAD Systems.
Deployment Status	Commercial Implementations (Ed.1): STEP Tools, Inc. Dassault Systems
Limitations	The available implementations of the standard are relatively limited and insufficient. Additional work, coordinated industry directives and an effective testing infrastructure are needed.
Additional Resources	AP 227 Ship Piping Usage Guide