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|Title: ||Using Building Data Models to Represent Workﬂows and a Contextual Dimension|
|Authors: ||Henriques, David|
|Approved Date: ||31-Aug-2009 |
|Date Submitted: ||2009 |
|Abstract: ||The context-workﬂow relationship is often poorly deﬁned or forgotten entirely. In workﬂow
systems and applications context is either omitted, deﬁned by the workﬂow or deﬁned
based on a single aspect of a contextual dimension. In complex environments this can
be problematic as the deﬁnition of context is useful in determining the set of possible
workﬂows. Context provides the envelope that surrounds the workﬂow and determines
what is or is not possible.
The relationship between workﬂow and context is also poorly deﬁned. That context can
exist independently of workﬂow is often ignored, and workﬂow does not exist independently
of context. Workﬂow representations void of context violate this stipulation. In order for
a workﬂow representation to exist in a contextual dimension it must possess the same
dimensions as the context.
In this thesis we selected one contextual dimension to study, in this case the spatial
dimension, and developed a comprehensive deﬁnition using building data models. Building
data models are an advanced form of representation that build geometric data models into
an ob ject-oriented representation consisting of common building elements. The building
data model used was the Industry Foundation Classes (IFC) as it is the leading standard
in this emerging ﬁeld.
IFC was created for the construction of facilities and not the use of facilities at a
later time. In order to incorporate workﬂows into IFC models, a zoning technique was
developed in order to represent the workﬂow in IFC. The zoning concept was derived from
multi-criteria layout for facilities layout and was adapted for IFC and workﬂow.
Based on the above work a zoning extension was created to explore the combination of
IFC, workﬂow and simulation. The extension is a proof of concept and is not intended to
represent a robust formalized system. The results indicate that the use of a comprehensive
deﬁnition of a contextual dimension may prove valuable to future expert systems.|
|Program: ||Management Sciences|
|Department: ||Management Sciences|
|Degree: ||Master of Applied Science|
|Appears in Collections:||Faculty of Engineering Theses and Dissertations |
Electronic Theses and Dissertations (UW)
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