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1 INTRODUCTION 1.1 Problem statement

1.1 Problem statement
The specification of a semantically correct mapping
between any two standard data models used in the
A/E/C industries is an enormous task. Data models
have in the order of 500 entities and many thousands
of relationships and attributes (e.g., IFC 2.x, IAI
2004). The mere task of sitting down and describing
which entities are related to each other is daunting,
let alone managing to encompass the full semantic
coverage of the contents of each of these entities.
Yet without some definition of a mapping to be im-
plemented it is basically impossible to guarantee the
correctness of any implemented translator for a stan-
dard data model.
It is clear that human experts are needed to per-
form this task, knowledgeable in both schemas being
mapped between. Yet even for such experts the
management problem of describing a mapping over
such large schema forces a requirement for some


Source: Amor, Robert - Department of Computer Science, University of Auckland


Collections: Computer Technologies and Information Sciences