DDB Datamodeller intern WS Per Christiansson AAU 1/8 Harmonisering af datamodeller Per Christiansson Aalborg Universitet Det Digitale Byggeri Intern WS, BIPS

DDB Datamodeller intern WS Per Christiansson AAU 2/8 Figure 2. The Virtual Building, VB, model is accessed through more or less detailed representations. The VB sub-models may be partly overlapping and also contain redundant information. (From CIB W78 paper) PC

DDB Datamodeller intern WS Per Christiansson AAU 3/8 Figure 3 There might be a negative correlation between effectiveness and flexibility for different representations, from (Christiansson 1993). (From CIB W78 paper). (From CIB W78 paper)

DDB Datamodeller intern WS Per Christiansson AAU 4/8 ONTOLOGY - the branch of metaphysics dealing with the nature of being - An explicit formal specification of how to represent the objects, concepts, and other entities that are assumed to exist in some area of interest and the relationships that hold among them. DICTIONARY - a book that lists the words of a langauge in alphabetic order and gives their meaning, or that gives equivalent words in different langauge. CLASSIFICATION The action or process of classyfying something according to shared qualities or characteristics Definitions

DDB Datamodeller intern WS Per Christiansson AAU 5/8 The real world is modeled and accessed from a User Environment, UE, to facilitate experience capture, design, construction, use and re- design of buildings.

DDB Datamodeller intern WS Per Christiansson AAU 6/8 From the world too data models implemented in software systems.

DDB Datamodeller intern WS Per Christiansson AAU 7/8 Dokumentklasser Bygesags info Areal Økonomi Drift Data filtreres ved indsamling (design/byg) og udtræk (drift) PC

DDB Datamodeller intern WS Per Christiansson AAU 8/8 SLUT