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Han C S, Kunz J C, Law K H

An internet-based distributed building design service framework

Abstract: This paper describes a distributed service architecture that enables the delivery of building design services over the Internet. With this architecture, it is possible to rapidly deploy various services, both new and legacy applications, that can be easily accessed via the Internet. As examples of services, the prototype implements a top-level brokering service, a project manager service with a companion CAD package service, and a set of disabled building code analysis services.

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Full text: content.pdf (83,880 bytes) (available to registered users only)

Series: w78:1999 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.synthesis (0.033504) class.collaboration (0.024443) class.man-man (0.016586)
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Permission to reproduce these papers has been graciously provided by the Research Press of the National Research Council of Canada. The support of the editors, particularly Dr. Dana Vanier, is gratefully appreciated.


Hannus M, Heikkonen A, Laitinen J

Internet in construction projects and research

Abstract: This paper describes experiences from using Internet as an environment for distributed teamwork between various actors in construction and research projects. Evolving commercial Internet services to construction industry are also described.

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Full text: content.pdf ( bytes) (available to registered users only)

Series: w78:1996 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.man-man (0.123837) class.collaboration (0.042663) class.environment (0.025470)
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Permission to reproduce these papers has been graciously provided by the University of Ljubljana. The assistance of the editor, Prof. Ziga Turk, is gratefully appreciated.


Hannus M, Jarvinen H, Astrom G

Exchange of product data of prefabricated concrete structures

Abstract: As part of efforts to adopt manufacturing automation in a scattered organizational structure the Finnish precast concrete industry has initiated the development of a number of solutions for data exchange. Guidelines concerning various aspects of using computers in the design/manufacturing process were defined in a manual which was widely distributed to involved parties. Standardized neutral file formats for data exchange between dissimilar computer systems were developed for three kinds of data: 1) drawings, 2) tables (e.g. bills of materials) and 3) product model -based data. Translator programs were developed for a number of common CAD-systems as well as a set of software tools to the users of standardized exchange files and software developers. The result of these developments have been widely adopted by fabricators, designers and software developers.

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Full text: content.pdf (894,706 bytes) (available to registered users only)

Series: w78:1991 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.software-software (0.038792) class.represent (0.028338) class.impact (0.015560)
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Permission to reproduce these papers has been graciously provided by Eindhoven University of Technology.


Harvey S C, Rezgui Y, Zarli A, Kazi A S

Services for inter-enterprise information management in dynamicvirtual enterprises

Abstract: State of the art research in Construction IT reveals that integration has been achieved, mostly, onstatic models that define the structure of shared information in the form of files or databases. Thispaper advocates that integration should be made through frameworks that define the semanticrelationships between the interfaces of separate distributed components (and the way to make those relationships evolve in the course of a project/process). Based on a requirements analysis ofindustrial partners, the OSMOS specification was made in the form of a set of information modelsand a set of required services packaged in the form of an OSMOS API. This paper focused on: emailbased communication service, document cross-referencing/information management service,virtual enterprise manager, and information browser.

Keywords: Virtual Enterprise, Distributed Systems, Teamwork Support, API, services,

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Full text: content.pdf (265,933 bytes) (available to registered users only)

Series: ecce:2001 (browse)
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Harvey S, Marache M, Samad Kazi A, Rezgui Y, Zarli A, Hemio T

Web-based generic services for the construction virtual enterprises in the OSMOS project

Abstract: The challenge addressed by the OSMOS[1] project is to provide construction participants with effective access to project information regardless of its form, format, and location, and on the other hand with increased flexibility to support smooth co-operation between non co-located teams, and the co-ordination of their work and activities in an environment that promotes trust and social cohesion. Driven by requirements specified by industrial partners, OSMOS aims at focusing on the specification of industry requirements including intra- and inter-company information process models, identification of required tools, interfaces and services for the Virtual Enterprise (VE), specification of construction groupware services including system architecture, interfaces and necessary extensions to common construction applications. The OSMOS consortium is developing two Internet-based prototype groupware services, hosted in Finland and France, including low entry tools for accessing project information in a VE. The latter include browsers for accessing distributed project information, tools for quick set up of the infrastructure for a new VE, and tools for typical asynchronous communication. The paper will give, first, a general background on the Information and Communication Technology use in construction, with an emphasis on IT tools supporting team work. This will be followed by a summary of the requirements of the OSMOS system based on the analysis of the current practices within the participating companies. These requirements form the base of the OSMOS specification, comprising a set of information models as well as a set of services packaged in the form of an OSMOS Application Programming Interface. The paper will then concentrate on 2 of the following services: the e-mail based communication service, and the document cross-referencing/information management service, selected as specific targets for the 1st iteration of the OSMOS project. The objective of the e-mail based communication service is to provide users with mechanisms for exchanging electronic information and messages, examples of which include electronic letters, e-mail, documents, etc., and generalised functionality archiving messages within the VE, search and get email addresses according to specified criteria, and so on. The second service (document cross-referencing/information management ) is to provide users with mechanisms to relate any particular nugget of information with other information to which it relates based on its semantics (meaning), regardless of its actual form and storage format. The paper then proceeds with a detailed overview of the application and potential of the web-based generic services for construction virtual enterprises in the OSMOS project. A demonstration of the initial web-based versions of the “Virtual Enterprise Management system” (VEM) and the OSMOS information browser is then presented. The VEM, as the name implies, manages a VE in terms of registering, modifying and deleting users, roles, access rights, classes, objects, services/methods, etc.. More functionality will be added for security, authentication, session management, logging facility, etc. The OSMOS browser on the other hand communicates with the VEM and serves as the main user interface presenting different views to the project data and through these views makes available invokable methods for individual objects based on user roles, rights, and view preferences. Finally, it is worth mentioning that the results presented in this paper though targeted towards the construction industry are in fact generic enough to be translated to other industry sectors. The project is supported by 4 user interest groups in Finland, France, Sweden, and UK.

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Full text: content.pdf (288,277 bytes) (available to registered users only)

Series: w78:2001 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.man-man (0.049106) class.software development (0.041176) class.man-software (0.039832)
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Permission to reproduce these documents have been graciously provided by CSIR Building and Construction Technology. The assistance of the editors, Mr. Gustav Coetzee and Mr. Frances Boshoff, is gratefully appreciated.


Hinz O

Using mechanical models as services within object-oriented distributed systems

Abstract: Components are stand-alone software modules which can be used by other components, independent of their programming language and process borders. Components offer their functions through a public interface, called service. The communication between components is controlled by an object request broker (ORB). One of the most common ORBs is ActiveX from Microsoft Co. For software in civil and structural engineering there are no really components available yet. The problem with components is that they should be designed for a big number of reusing cases. This paper shows how mechanical models can be used to define engineering components and they can be used in several concepts of distributed software environments (intra- and internet).

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Series: ecce:1997 (browse)
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Issa, Mohamed; Rankin, Jeff; Christian, John; and Pemberton, Evan

Using Interactive Workspaces for Team Design Project Meetings

Abstract: An Interactive Collaboration Laboratory (ICL) has been established at the University of New Brunswick (UNB) to research the application of interactive information and communication environments for the architectural, engineering, and construction (AEC) industry. This paper provides a quick overview of the laboratory within the wider context of interactive collaborative workspaces. It identifies opportunities to enhance information communication, and group decision-making offered by the laboratory, and focuses on lessons learned to date from its use. The paper reports on a survey conducted among final year undergraduate students who used the environment over the course of three months for their senior design project meetings. A questionnaire was distributed to those students to investigate the impact of the environment upon the effectiveness of their meetings and decisions, the issues and processes where the environment was more (or less) useful, and the context within which the environment and tools were used. The questionnaire also investigated the impact of the environment and its tools upon their project, the quality of their work, and their overall satisfaction. Students found the laboratory to be specifically useful at the preliminary design stage when designing, viewing, and analyzing the site and building layouts of their projects, and determining the project’s sustainability requirements, and targets. The laboratory enabled student groups to view information from different perspectives, access remote information, and save captured information instantaneously. It also enabled them to collaborate more effectively, make more educated decisions, make better use of their time, produce higher quality work, and develop among them a relationship of trust, respect and mutual understanding. Investigating how best to use the lab’s technology to serve their needs, occasionally slowed down their progress and distracted them at times from focusing on their work.

Keywords: Interactive Workspaces, Collaborative Environments, Information and Communication

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Full text: content.pdf (184,091 bytes) (available to registered users only)

Series: convr:2007 (browse)
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J Beetz

A Scalable Network of Concept Libraries Using Distributed Graph Databases

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Full text: content.pdf (118,766 bytes) (available to registered users only)

Series: w78:2014 (browse)
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J Haymaker

Formalizing and managing the dependencies between models

Abstract: AEC professionals need information models that are structured for their specific tasks. They also need to be able to control the integration of these models with the models of other professionals. In this paper I propose methods for formalizing and managing the dependencies between information models. Using these methods, an AEC professional constructs an information model, called a Perspective, and specifies the sources and nature of its dependency on other Perspectives. He specifies the nature of the dependency using a reasoning algorithm called a Perspector that describes the automated or manual reasoning needed to construct the dependent Perspective from its source Perspectives. He uses Management Processes to control the integration of the dependent Perspective as its source Perspectives are iteratively modified. AEC professionals apply this method repeatedly and collaboratively to compose and control directed acyclic graphs of Perspectives and their dependencies, called Narratives. Narratives provide a simple, formal, visual, flexible, distributed, yet collaborative way to construct and control the integration of multiple task-specific Perspectives. They are intended to help AEC professionals communicate, integrate, and automate multidisciplinary design processes and the information models used in these processes.

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Series: w78:2005 (browse)
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Permission to reproduce these papers has been graciously provided by the Technische Universität Dresden.


Jakob Beetz, Bauke de Vries, Jos van Leeuwen

RDF-based distributed functional part specifications for the facilitation of service-based architectures

Abstract: In this paper we highlight research and development that is done in the larger context of a service ori-ented architecture framework for the support of design decisions. We are going to illustrate how methods that adhere to the “open world assumption” (OWA) can be used to construct semantically meaningful information fragments from larger models. We are demonstrating the composition and use of Functional Parts specifications as RDFS graph pat-terns. We outline a prototype that applies RDF(S) sub graph extraction and merging with queries and rules in distrib-uted scenarios using models based on the IFCs that have been notated as partitioned OWL models. We are showing how these sub graphs can be used as machine-readable information exchange requirements not only for existing models but also for the semi-automated integration of newly added conceptual models as project-specific augmentations.

Keywords: building information models, semantic web, service oriented architectures, IFC

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Full text: content.pdf (422,588 bytes) (available to registered users only)

Series: w78:2007 (browse)
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