A metadata registry for Japanese construction field

Transkript

1 A metadata registry for Japanese construction field LCDM Forum, Japan October 25 th -27 th TAKEYA, Isobe LCDM Forum Secretariat Document No. GEC

2 LCDM Forum, Japan LCDM Forum, Japan Non-profit task force led by private companies Construction industry, IT industry, and public sector members Goal Deploy information infrastructure to construction IT field Realize data sharing and system collaboration all through the construction life-cycle Schedule of LCDM Forum 2 years : Feb 2005 Jan 2007 *LCDM: Life Cycle Data Management 2

3 Main activities of LCDM Forum Develop specification of LCDM information infrastructure on which information resources circulate. Create new business models and opportunities for construction industry Promote LCDM concept as information infrastructure Propose new standards to international standardization bodies in cooperation with task forces and organizations all over the world. 3

4 Goals of LCDM Forum Establish maintenance function of information standard Realize data management all through the lifecycle Leverage return of investment related to information technology Establish IT infrastructure for Japanese construction industry in order to expand their businesses toward East Asian market. 4

5 Overview of LCDM system(1of2) LCDM- Standard Specification Registry Data model, Data element dictionary, Glossary Apply Registration of Specification Retrieve standards Public Sector Retrieve standards LCDM Portal Interface Information of Data Providing Systems Specification Developer Retrieve standards Register Interface Information Web Service Register Interface Information Retrieve standards Citizen LCDM Adapter Construction Company Data users Legacy System Manager LCDM- Legacy Data Standard Data Legacy System System LCDM Data Providing System System Manager Retrieve Register 5

6 Overview of LCDM system 2of2 LCDM Registry LCDM Registry Standards are made public in Registry. New standards must be made based on registered ones, harmonizing with them. Registration of standards is under loose control to a certain degree. LCDM Portal Users access Portal to retrieve and acquire the data they need. Data providers register information related to the data they provide (Interface Information) to Portal. LCDM Data Providing System Application developers refer to the standards registered in Registry when they develop new systems. Data in DB of legacy systems (non-standard) are transformed into data with Adapter. Legacy systems do not need to be rebuild. 6

7 Operation of LCDM Registry(1of2) Registry Standards Standard Registrar Human process Data Element Dictionary Spec Developer Owner of Legacy Data User of Standards Examination Authority Retrieval of Standard Discovery of standards Access count Data Model e.g. XML schema) Glossary Registry User Download of Standard Portal collaboration Legacy Data Specification, DB schemata of existing systems *1 *1 Files like PDF are Acceptable. LCDM Portal LCDM Portal LCDM Portal 7

8 Operation of LCDM Registry(2of2) Raison d être of LCDM Registry (1) Make visible who, what, and where about data standards. (2) Re-use registered prior standards to develop new ones efficiently. One Registry in construction field for the time being Registration to LCDM Registry goes through human examination process by Examination Authority. Registry accepts not only XML-based standards, but also DB schemata of legacy systems. Registry accepts not only re-usable(machine-readable) format, but also human-readable format like PDF. Registry accepts multiple standards in the same area. Registry users can see how often each standard is referred to, promoting de facto standard. 8

9 Operation of LCDM Portal(1of2) LCDM Registry LCDM Portal LCDM Data Providing System Registrar of Data Providing System LCDM Data Providing System Owner *1 Interface Information Registration Tool Registry Collaboration Interface Information of Data Providing Systems Web Service System Legacy System *2 LCDM Adapter *1 In case of registration of Interface Information, compliance with registered information is examined. Data User *2 Convert data of legacy DB into XML Human user / System LCDM Data Providing System Developer 9

10 Operation of LCDM Portal(2of2) Raison d être of LCDM Portal (1)Administer what kind of data that portal can deliver and where they locate. (2)Collaborate Registry when Data Providing Systems are registered to Portal, checking if they are based on registered standards. In the future, system collaboration through services will be realized based on SOA Service- Oriented Architecture). Interface Information Registration Tool is used to register Data Providing Systems to Portals. 10

11 Organization chart of LCDM Forum General Meeting Chair Advisory Group Board of Directors Steering Committee Secretary Business Framework Subcommittee Reference Model WG Design Guideline WG Case Study WG Technical Subcommittee Registry WG Portal WG System Operation WG Promotion Office 11