1. Prof. Dr.-Ing. Joaquín Díaz University of Applied Sciences Giessen-Friedberg Germany
GEAB and IFC - Migration of National Standards into International Standards

2. Overview Promise and Reality Information Exchange in CE
GAEB DA2000-XML
Migration approaches GAEB - IFC
Summary

3. Promise and Reality
Trump-Tower Chicago
ICE - 3

4. Division of Markets in ACE
Project- manager
Architect
Engineer
Planning
Client/ Owner
Con- tractor
Sub- contrac-
tor
Construction
Manufac- turer
Dealer/
Supplier
Products

5. Goal of the Common Committee for IT in building and construction
..is a common language for all participants engaged in design, construction and operation of buildings in accordance with technical rules of the German Institute for Standardization (DIN) and the Construction Contract Procedures (VOB):
Standardized text for items in bills of quantities/materials
Guidelines for tendering procedures
Guidelines for structure of bill of quantities
data-exchange - excepting CAD data
„any process is better than no process“
„a good process is better than a bad process“
„even a good process can be improved“Michael Hammer

6. D81 Specifi- cation of Work D50 Construction Cost Catalog
Planning
Architect
Engineer
Owner/ Client
Construction C o n t r a c
Products
Manu- facturer
Dealer/
Supplier
D93 Price Inquiry
D83 Call for Bids
Com- petitors
D85 Secondary Bid
D84 Bid Submission
Bidders
D94 Quotation
D82 Cost Estima-
tion
D81 Specifi- cation of Work
D96 Order
D97 Order Confirmation
D86 Contract Award
Approved
Bidder
D88 Change Order
D89 Invoice
D40 General Catalog
D50 Construction Cost Catalog
D61 Room Register
D71 Workflow Schedule
D80 BoQ Catalog
D51 Bill of Costs

7. Bill of Quantities/Materials
Specification of Work with Bill of Quantities
Drawings and other enclosures
Bill of Quantities
General description of construction job
Purpose, type and use of structure
Type and method of construction
Reference to structural drawings, site plan
For example:
Preliminary remarks (if any)
Work items (reference numbers)

8. Questions to solve
How can we link already existing IFC- elements with Quantity-(cost)-elements
How can we take different national systems and regulations into consideration
How can we show the benefits for practise
How can we calculate and determine quantities in CAD-Systems for the use in bidding systems
How can we integrate existing classification systems (e.g. StLB Bau, ..) and cost estimation systems ..

9. IFC-Working group: Exchange of Model Based Quantities
Working since 2005
Goal of WG: approaches for IFC and cost management
Common neutral interface definition
Quantity determination and calculation
Integration of Bill of Quantities
Consideration of national approaches (e.g. GAEB, ..)
Members: Graphisoft, m-g-h architekten+ingenieure; f:data GmbH,m G&W Software, Dr. Schiller & Partner GmbH, Ingenieurgesellschaft Hartmann, Obermeyer Planen und Beraten, Greiner Ingenieurberatung, Max Bögl, HOCHTIEF, RIB, FZ Karlsruhe, Nemetschek, TLConsulting, Bentley Systems, BouwtaaK KennisCentrum, Springer BauMedien, Autodesk

10. First Results: XML-schema
IFC serves as a basis information model
Linking CAD-system “X" with bidding–system “Y” using quantity-elements
Small and smart global quantity definitions
Consideration of national regulations using external views
Linking CAD-system “X" with bidding–system “Y” using room/space/segment-elements

11. Research: MANUBUILD - Approach
Resource Description Framework
Web ontology language / GDL
WSDL with WSRF
Reference: Kopyto/Reinecke

12. Information- and Knowledge exchange
Firma:
CIP
Ingenieurg.
yesterday
Physical
New input
Paper
Transport
Firma:
CIP
Ingenieurg.
today
convert
HTTP, XML
Digital
media
tomorrow
Firma:
CIP
Ingenieurg.
SOAP
Drag / Drop
network based documents
Xlink
OWL, XML