ISO TC 184/SC 4/WG 3/T 23 (SHIP TEAM) INFORMATION

	This is the place for information about product model data in the international shipbuilding industry

ISO 10303

The International Organization for Standardization (ISO) has an industry initiative underway for creating neutral product model data exchange standards. The standard is called the STandard for the Exchange of Product model data (STEP) and is designated ISO 10303. The ship community is participating in this standard to ensure that ship product model data can be exchanged between Computer Aided Design (CAD) systems to support real business processes.

ISO ORGANIZATION

ISO is organized into Technical Committees (TC). Under TCs are Sub Committees (SC). These contain Working Groups (WG). Some WGs are Joint WGs (JWG) by virtue of the fact that they are also sanctioned by IEC which has responsibility for electrical standards. The WGs are made up of Teams (T).  The team working on STEP for ships is therefore:

TC 184 - Industrial Automation Systems and Integration

SC 4 - Industrial Data

WG 3 - Standard for the Exchange of Product Model Data (STEP)

T 23 - SHIPBUILDING TEAM

designated as ISO TC 184/SC 4/WG 3/T 23.

STEP INFORMATION (WG 3)

SC4 On-Line Information Service (SOLIS) contains information on TC 184/SC 4 standards development projects for ISO 10303. A more general description of all the STEP APs is available in the ISO 10303 STEP Application Handbook on the USPRO web page and other sites.

SHIP TEAM INFORMATION (T 23)

Meeting minutes of past T 23 meetings are available, without the appendices.  Minutes are in Hyper Text Markup Language (HTML) format or are zipped files.

Feb 2002, Jun 2002, Sep 2002, Nov 2002, Jan 2003, Mar 2003, Jun 2003, Oct 2003, Mar 2004, Oct 2004, Mar 2005, 

The T 23 standards are organized by Ship Through Life System Information, Ship Structural Envelope, Ship Distributed Systems, and Ship Subsystems and Equipment standards.  The Shipbuilding Team goals and priorities for developing ship product model data exchange capabilities is described in the T23 Plan.

SHIP APPLICATION PROTOCOLS

A one page Ship STEP-on-a-Page document (two sided) is available to describe the ship STEP applications.� This document and other free STEP documentation can be down loaded from the U.S. Technical Advisory Group web site for ISO 10303.

SHIP THROUGH LIFE SYSTEM STANDARDS

AP 239 - Systems Engineering Data Representation

AP 233 addresses the need to exchange system requirements.� The scope includes: conformity to the concept of a system; configuration control; requirements, requirement analysis; and functional allocation/ analysis/ behaviour; and physical architecture.

AP 239 - Product Life-cycle Support

AP 239 addresses support of the system from concept to disposal.� It enables you to: request, define, justify, approve, schedule and capture feedback on work activities/resources; document product requirements and configuration as-designed, as-built, and as-maintained; provide feedback on product properties, operating states, behaviour and usage; and define support opportunities, facilities, personnel, and organizations for the complete aircraft or spacecraft description of structural envelope, distributed systems, and the subsystems/equipment.

SHIP STRUCTURAL ENVELOPE STANDARDS

AP 215:2004 - Ship Arrangement

AP 215 specifies an application protocol for the exchange of product data representing a ship's internal subdivision information between different organizations with a need for that data. Such organizations include ship owners, design agents, and fabricators. This AP has been developed to support the shipbuilding activities and computer applications associated with the Functional Design, Detail Design, and Production Engineering life cycle phases for commercial or military ships. The types of design activities and computer applications supported include naval architectural analyses (e.g., Damaged Stability, Compartmentation and Access, and Floating positions), structural analysis, interference analysis, and weight Analysis.  An AP 215:2004 user friendly graphic is available.

AP 216:2003 - Ship Moulded Forms

AP 216:2003 specifies an application protocol (AP) for ship moulded forms and related hydrostatic properties. The AP supports hull moulded forms and moulded forms for structures internal to the ship, and supports surface and underwater ships for commercial and military use.  A ship moulded form is the shape and set of dimensions of a ship (or any part of it) that does not include information on the thickness of the material from which it is constructed.  Hydrostatic properties are characteristic parameters used to assess the intact stability and flotation of the ship. An AP 216:2004 user friendly graphic is available.

AP 218:2004 - Ship Structures

AP 218 specifies the information requirements for exchange of ship structural systems data for ship pre-design, design, production, and inspection/survey.   Product definition data pertaining to the ship's structure includes: hull structure, superstructure and all other internal structures of commercial and naval ships.  An AP 218:2004 user friendly graphic is available.

DISTRIBUTED SYSTEMS STANDARDS

ISO 10303 contains other product model data exchange standards that are not ship specific but that can be used for ship product model data exchange in commercial processes.  The approved distributed system APs are the most important standards,  ISO 10303 AP 212:2001 and ISO 10303 AP 227:2001(and Edition 2).  

AP 212:2001 - Electrotechnical Design and Installation (Electrical and Cableways)

AP 212:2001 provides for electrical cables and harnessing exchange capabilities of components, transmission and controls  electrical design and installation in equipment and facilities.  An AP 212:2001 user friendly graphic is available.

AP 227:2005 - Plant Spatial Configuration (Piping, HVAC, Cable Trays, and Mechanical Systems)

AP 227:2001 provides the ability to exchange basic piping information.  An AP 227:2001 user friendly graphic is available.

AP 227:2005 Edition 2 addresses additional piping information for ship conformance classes, HVAC, cable tray, and mechanical systems information needs.  It supports functional design, detail design, production engineering, fabrication, assembly and testing.  Enhancements to AP 227:2001 are in an AP 227:Edition 2 user friendly graphic.

SHIP AP IMPLEMENTATION TESTING

Test Data

Test files are being generated using data from the US Navy TWR 841. The Torpedo Weapon Retriever (TWR) is a 120 foot boat that supports underwater acoustic operations and torpedo exercises.  They are provided as a service to help organizations get started in ship product model data exchange, but no warranties are provided on the accuracy or correctness of the test files.  ANY POSSIBLE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR PURPOSE ARE SPECIFICALLY DISCLAIMED. 

AP 203:1994

An AP 203 test file consisting of TWR external geometry is available. It is a 46 megabyte file that is zipped as a 7 megabyte file for downloading.  Every CAD systems supports AP 203, but some require that you buy add-on software to read and write AP 203 files.

Ship Structural Envelope Test Exchanges

Implementers Agreements provide boundaries to business case exchanges and provide recommended methodologies.  Sample structural envelope implementers agreements are available.  These types of agreements were used in STEP product model exchange tests.

AP 214:1998

AP214:1998 test files are available that were developed as part of the ongoing National Archives and Records Administration Project regarding Long Term Product Model Data Retention. These files will also be used for testing the LEAPS / STEP translators.

These files were initially created with ShipConstructor 2006, then exported to Autodesk Inventor and saved as STEP.

        ������� �����������             

TWR Structure      ����������������������������������������       ���������������� TWR Piping

ShipConstructor Structure                                 ������������������ ShipConstructor Piping 

 

AP 215:2004

Test file generation in process using the TWR is underway within the NSRP.

          

AP 216:2003

AP 216:2003 test files are available that have been reviewed by over a dozen ship and software companies within the NSRP.  These files are provided to help implementers with incremental development and testing but any implied warranties or fitness of purpose are disclaimed.  If their are multiple test files for a test case they will be highly similar, but not necessarily identical.  This is because the drawings each test case was generated from are unclear and in some cases contradictory so they were interpreted differently by the companies generating the STEP test files.  Test case A is just the hull form.  Test case B adds decks and bulkhead divisions.  Test case C adds deckhouse information.

                    

'Hull form' Test Case A                         'Hull-deck-division' Test Case B  'Hull-deck-division-deckhouse' Test Case C

Intergraph  test case A                             Intergraph test case B                     Intergraph test case C  

LEAPS test case A                                 LEAPS test case B                          LEAPS test case C  

Test file contributors: FORAN, Intergraph, LEAPS

AP 218:2004

Testing planned.

Ship Distribution System Test Exchanges

Implementers Agreements provide boundaries to business case exchanges and provide recommended methodologies.  Sample distribution systems implementers agreements are available.  These types of agreements were used in STEP product model exchange tests.

AP 212:2001

AP 212 test files are at IDA-STEP  .  Note that these example files are conformant to AP212 (part 21 files on the AIM level).

AP 227 E2:2005

Testing planned.

MISSION SUBSYSTEMS AND EQUIPMENT STANDARDS

The ship and distributed systems APs reference equipment in their exchanges.  Structural stiffeners, pumps, fans, condensers and other equipment are identified in the exchanges.  Before ship product model data exchanges take place the sending and receiving system must have the same parts in their libraries.

Parts Library Exchanges

A successful exchange of parts libraries is critical to the success of an exchange data in the ship APs. 

Outfit and Furnishings

The US shipbuilding industry developed product model data exchange requirements for ships in the early 1990�s in the National Shipbuilding Research Program (NSRP).� These became the basis for the current ISO 10303 T 23 Application Protocols.� An NSRP document also addressed the need to exchange O&F information for ships.� NSRP 0428, Ship Outfit and Furnishings Application Protocol, documents the information requirements for the exchange of ship product model O&F information. O&F was not addressed as a separate AP in T 23.  Outfit and Furnishings (O&F) is composed of equipment, components and parts from the following categories:

a. Non-structural bulkheads

b. Ladders

����� c. Gratings

����� d. Furnishings

����� e. Insulation

����� f. Deck coverings

����� g. Protective coating

����� h. Hull fittings

����� i. Liferails, lifelines and safety nets

����� j. Doors, hatches, scuttles, and manhole covers

����� k. Air ports, fixed port lights, windows, and window wipers

����� l. Stowage, storerooms and workshops

����� m. Deck rigging.

O&F items are frequently procured items so digital information on these items would be particularly useful in e-commerce.  A T 23 paper on how to address O&F resulted in the following consensus.

AP 227 mechanical system exchange conformance classes can be used to exchange stand-alone items (furniture, office equipment, deck rigging) as individual mechanical O&F systems.� The handling of these items within the mechanical system conformance classes with external references to component items should be spelled out in the Distribution Systems Implementers Agreement.� Additional needs should be identified with Standards Enhancement and Discrepancy (SED) reports for future addition to AP 227.�  

There are some O&F items that are intrinsically related to the ship structural data exchanged with AP 218.� The need for exchanging these items (deck coverings, protective coatings, doors, hatches, scuttles, manhole covers, ladders, gratings, and insulation) can largely be done with the existing AP.�� The handling of these items within the 218 conformance classes with external references to component items should be spelled out in the Ship Structural Envelope Implementers Agreement.� Additional needs should be identified with Standards Enhancement and Discrepancy (SED) reports for future addition to AP 218.� This could include product model attributes pertaining to non-structural (joiner) bulkheads, hatches and inserts, insulation panels, etc.� The addition of these items is a minor update to AP 218 functionality.

Currently the Ship Application Protocols are designed to reference Standard Part Libraries using the ISO 13584 PLib standards.� T 23 needs to develop this approach for the traditional components that are expected in the Ship AP exchange standards in addition to O&F data.

The best approach for TC 184/SC 4/WG 3/T 23 (Ship team) is to use existing AP 227 and AP 218 APs with external references to part libraries/catalogs, documentation on the agreed upon methods in the Structural and Distribution Implementers Agreements, and modest development of these APs to better address O&F exchange.�

Parts Library Catalogs, ISO 13584, and Oil and Gas (Reference Data Libraries), ISO 15926

ISO 13854 (Parts Libraries) and ISO 15926 (Reference Data Library) are companion standards to STEP for the exchange and sharing of part catalog product model data.   The ship community is prepared to interoperate with both Parts Libraries standards.  A companion standard for STEP is ISO 13584, Parts LIBrary (PLIB). The ship community is also participating in the development of STEP and will require  PLIB exchanges in advance of most STEP ship exchanges.   

INTERNATIONAL SHIP STEP COOPERATION

There are several ship industry groups that have been formed to accelerate the development of the ship APs.

The Europeans are coordinating their STEP ship efforts with the Marine e-business Standards Association (eMSA).   eMSA was founded in 1994 and is a membership based organization of enterprises from the maritime industry.  The purpose of eMSA is to improve the productivity of its members by promoting the development, implementation, and use of ISO 10303 and other e-business standards. 

The US is coordinating STEP ship efforts in the National Shipbuilding Research Program (NSRP).  NSRP's Systems Technology Panel members submit cost-sharing proposals between private firms and the NSRP.  The NSRP initially documented US requirements for ship product model data exchanges that were the baseline documents for the initiation of the T 23 APs. 

The Japanese coordination is done in the Japanese Ship Technology Research Association (JSTRA) organization.  JSTRA is the unique, non-profit organization in Japan that collectively deals with the affairs related to standardization work in the field of ships and marine technology.

The Korea STEP Center, founded in April, 2000, is the non-profit organization in Korea that promotes the use and development of STEP technology among various industries in Korea. The Korean Research Institute of Ships and Ocean Engineering (KRISO) is coordinating the Korea STEP Center organization.  As a part of its activity it includes the effort for the development of ship STEP technology and support to shipbuilding industries in Korea. 

T 23 CHAIRPERSON CONTACTS

For more information on STEP ship activities contact the ISO TC 184/SC 4/WG 3/T 23 (Ship Team) Co Chairpersons at:

+1 301 227-1938  or  +44 1225 885781

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