Glossary

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A

ACIS

3D Geometric Modeler from Spatial Corporation, see Wikipedia and www.spatial.com

ADE

Application Domain Extension

ADT

Architectural Desktop

AEC

Architecture, Engineering, Construction

ALKIS

German National Standard for Cadastral Information

ATKIS

German National Standard for Topographic and Cartographic Information

B

B-Rep

Boundary Representation, see Wikipedia

BIM

Building Information Model

C

CAAD

Computer Aided Architectural Design, see Wikipedia

CAD

Computer Aided Design, see Wikipedia

CAFM

Computer-Aided Facility Management software application

CityGML

Exchange and Storage of Virtual 3D City Models, see more

CRS

Coordinate Reference System

CSG

Constructive Solid Geometry, see Wikipedia

D

DGN

File Format from Bentley, see Wikipedia

DTM

Digital Terrain Model

DWG

File Format from AutoDesk, see Wikipedia

DXF

Data Exchange Format, File Format

E

EXPRESS

Information Modelling Language, developed by the ISO Group TC184/SC4 as an international standard ISO 10303-11.

EXPRESS-X

Extension to EXPRESS, allows querying and processing the content of a populated EXPRESS model, main tasks are the mapping between different EXPRESS models and the definition of views onto such a model. Developed by the ISO Group TC184/SC4 as an international standard ISO 10303-14.

F

FM

Facility Management, see Wikipedia

FZK

Forschungszentrum Karlsruhe, see www.fzk.de

G

GDI NRW

Geodata Infrastructure North-Rhine Westphalia

GIS

Geographic Information System, see Wikipedia

GML

Geography Markup Language, see Wikipedia

GUID

Globally Unique Identifier is a unique 128-bit number that is produced by an open algorithm, see Wikipedia

H

HTML

Hypertext Markup Language, see Wikipedia

I

IAI

International Alliance for Interoperability, a non-for-profit, industry-led organization, that supports the development of the IFC specification.

IAI

Institut für Angewandte Informatik, Forschungszentrum Karlsruhe, see www.iai.fzk.de/ifc

IDM

Information Delivery Manual, specifies which information that should be exchanged between process at a certain stage in a buildings lifecycle, www.iai.no/idm

IFC

Industry Foundation Classes a neutral product data model for the construction and facility management industry, see Wikipedia and an overview (in German)

IFC version

release number of the IFC specification used for the exchange (*.ifc file, or data repository), official IFC releases include IFC1.5.1, IFC2.0, IFC2x, IFC2x2, IFC2x3

IFD

International Framework for Dictionaries

IFG project

Industry Foundation Classes for GIS, an IAI project to enable the CAD/GIS integration based on IFC, see www.iai.no/ifg/

IGES

Initial Graphics Exchange Specification, File Format

K

KML

Keyhole Markup Language, see Wikipedia

L

Latitude

Degrees difference North or South from the Equator, see Wikipedia

LoD

Level of Detail, see Wikipedia

Longitude

Degrees difference East or West from Greenwich, England, see Wikipedia

N

NIST

National Institute of Standards and Technology

O

OGC

Open Geospatial Consortium

OpenCascade

Open source 3D Modeller, see Open CASCADE Technology

P

PDM

Product Data Model

S

SIG 3D

Special Interest Group 3D of the GDI NRW

SQL

Structured Query Language

STEP

Standard of the Exchange of Product Model Data

STL

Stereolithography Language, Standard Transformation Language, File Format

T

TIC

Terrain Intersection Curve

TIN

Triangulated Irregular Network

Topographic

Graphic representation of the surface features of an area.

U

URL

Uniform Resource Locator, see Wikipedia

V

VRML

Virtual Reality Meta Language, File Format, see more

W

WFS

OGC Web Feature Service

X

X3D

Open Standards XML-enabled 3D file format of the 3D Consortium

XML

Extensible Markup Language, see Wikipedia

Z

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