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Arnold J A, Teicholz P

The use of knowledge based components for automated task support in the process industry

Abstract: This in-process research project investigates u knowledge based component’ information model that is capable of supporting distributed software services for design and engineering in the process industry. The test case component information model for a control valve is based on the results of previous research that defines the information requirements [Arnold, Teicholz I W6]. It integrates an explicit description of product data (form. function, and behavior} and an engineering process to offer partial automation for the task of control valve selection in an intelligent design environment. The research also investigates the business and technical issues related to the deployment of knowledge based component information libraries on the Internet. This work seeks to uaderstand how such sofiware services can be realized, how they can integrate with work process, and how they would benefit A/E/C business practice.

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Full text: content.pdf (1,628,942 bytes) (available to registered users only)

Series: w78:1996 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.represent (0.024546) class.commerce (0.022756) class.environment (0.020851)
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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.


B Firmenich, C Koch, T Richter & D G Beer

Versioning structured object sets using text based Version Control Systems

Abstract: With the availability of an affordable and ubiquitous network environment the distributed cooperation of projects can be supported by computer software. Currently, the degree of support of a distributed cooperation is very different in the diverse classes of applications. While in the field of text-based applications the synchronous distributed cooperation is already state-of-the-art, the users of document-based applications can currently only cooperate asynchronously in terms of a workflow by exchanging documents. This contribution describes a solution approach for the re-use of existing document-oriented applications in net-distributed processes. The synchronous cooperation is realized by a novel procedure that stores the structured object sets of existing single user applications in version control systems, where the well proven tools of the software configuration process can be used in distributed construction planning processes as well.

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Full text: content.pdf (462,969 bytes) (available to registered users only)

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


B Ksiê¿opolski & Z Kotulski

On scalable security model for sensor networks protocols

Abstract: Distributed sensor networks meet many different barriers that reduce their efficient applicability. One of them is requirement of assurance of the information security when it is transmitted, transformed, and stored in the electronic service. It is possible to provide an appropriate level of security applying the present-day information technology. However, the level of the protection of information applied to the whole network is often much higher than it is necessary to meet potential threats. Since the level of security strongly affects the performance of whole system, the excessive protection decreases the system's reliability and availability and, as a result, the global security of the construction. In this paper we present a model of scalable security for digital information transmission systems for the sensor network. In our model the basic element is the risk management procedure leading to an adequate protection level.

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Full text: content.pdf (347,535 bytes) (available to registered users only)

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


Bakis N, Sun M

Intelligent broker for collaborative search and retrieval of construction information on the WWW

Abstract: "CONTEXT In recent years, the construction industry began to use the World Wide Web (WWW) as an information dissemination vehicle. The amount of construction information available on the WWW is increasing exponentially, ranging from product data to technical publications, from building regulations to best practice guides. However, the task of finding the right information becomes more and more difficult. At present, users rely on two types of solutions to the information discovery and retrieval problem on the Internet, “yellow pages like information gateways” and “robot-based Internet search engines”. While acknowledging the success for both solutions so far, the authors will discuss their growing evident limitations in supporting construction specific information retrieval on the WWW. OBJECTIVES AND METHODOLOGY The aim of this study is to develop an intelligent information broker for the construction information on the Internet, which will facilitate collaboration between users for the benefit of improved information search and retrieval on the WWW network. The objectives are: ·to examine the information needs of different types of users in the construction industry; ·to capture these information needs conceptually as user profiles and information context models; ·to incorporate construction domain knowledge into the information network; ·to improve speed and accuracy of users search for construction information by developing a information network that facilitates the sharing of search results and knowledge; ·to develop a hierarchical distributed client/server architecture to enable the most efficient service both Intranet and Internet users. RESULTS AND CONCLUSIONS The intelligent information broker described in paper has a client/server architecture based on software agents technology. It has two distinct features: (1) supporting user collaboration; (2) applying construction domain and user profile knowledge to improve the information search. Collaborative Information Searching Collaborative searching or social filtering is often the most effective method of ranking Internet documents. The developed information broker enables users with the same interest to share the results of their search and their rating of each document’s quality and relevance. Construction knowledge and User Profile The information broker server is in essence a construction oriented WWW searching engine. What distinguishes it from other searching engines is its evolving knowledge base of construction specific keyword sets and construction user profiles. Using the knowledge base, the information broker server is able to answer intelligent queries other than simple keyword matching."

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Full text: content.pdf (197,260 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.054837) class.retrieve (0.047943) class.social (0.030880)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


Brien M J O', Al-Biqami N M

Survey of information technology and the structure of the Saudi Arabian construction industry

Abstract: While technical advances are the main drivers in the adoption of Information Technology (IT) in the construction industry, such advances can only be incorporated through a due appreciation of the structures of the industry. Earlier work has shown how the organisational structure of the industry is in large part determined by the nature of the economic and financial exchanges which takes place. New IT initiatives succeed to the degree to which they are congruent with those financial exchanges. In short, economic benefits must accrue. This in turn begs the questions: who benefits, and how are the benefits to be distributed amongst the various parties? The answers to these questions provide the basis for establishing a successful implementation. This short-term 'economic benefits' argument does not, however, preclude a more substantial organisational shift at some later point. In this paper we provide an analysis of the economic structure of the construction industry in Saudi Arabia, and in particular the degree to which IT has established itself in that industrial sector. The Saudi Arabian Construction industry is one of the largest in the world, being devoted to the provision of a large-scale infrastructure. However, in many of its characteristics it is unique. It is these elements of uniqueness which make this particular industry interesting: the uniqueness poses new problems for the developers of novel and innovative IT construction systems. Yet despite these aggregate figures and anecdotal facts the small-scale nature of the construction industry has been poorly researched and documented. The analysis of the economic and organisational structure of the Saudi Arabian IT construction industry provided in this paper provides the fine-grained matrix within which new IT systems can be built. The paper describes an ongoing study of the Saudi Arabian construction industry. It draws together existing facts on the industry and new ones which are being elicited though a large survey of the industry. Finally, it is envisioned that tentative conclusions will be provided on the economic and organisational structure of the industry.

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Full text: content.pdf (82,648 bytes) (available to registered users only)

Series: w78:1999 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.economic (0.028723) class.strategies (0.014463) class.roadmaps (0.014116)
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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.


Brien M O'

Production and evaluation of a multi-media product selector

Abstract: Intercommunication between diverse computer systems demands the use of standards. Initial standards were concerned with the physical and electrical including the structure of the messages sent by one system to another. The most recent developments have addressed high level semantic issues which are the primary concern of the users. The trend therefore has been one from lower, syntactic, system concerns to higher, semantic, application issues. Whereas the development of the ISO Open Standards Intercommunication standard has been universally accepted the creation of higher level standards has not been so simple. This paper addresses some of those issues. In particular, it draws on the lessons learnt in the production and evaluation of a multi-media product selector that has been built to support the construction industry. A primary concern that has been highlighted by this product is the need to provide novel query mechanisms which can cope with a diversity of data structures. This demand for differentiation is directly at odds with the standardised capabilities of current distributed data structures.

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Full text: content.pdf (48,793 bytes) (available to registered users only)

Series: w78:1996 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.synthesis (0.030805) class.represent (0.026535) class.deployment (0.025640)
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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.


Brown A, Rezgui Y, Cooper G, Yip J, Brandon P

Promoting Computer Integrated Construction Through the Use of Distribution Technology

Abstract: This paper discusses how distributed object technology can profitably be put to use in the construction industry. It begins by outlining the potential benefits distributed object technology and standards can bring to construction, particularly when considering the integration of existing and future information systems. It then describes research that has applied this technology to the COMMIT (COnstruction Modelling and Methodologies for the Intelligent inTegration of information) project. This project aims to provide new levels of support for integrated building information systems by dealing with issues such as versioning, notification, the representation of intent and the definition of object rights. To this end, a generic information management model has been proposed, a brief description of which is given here. The architecture and distributed implementation of this information management model are then described, and a framework proposed in which the model acts as a bridge between services provided by the CORBA (Common Object Request Broker Architecture) distribution standard and objects in a computer integrated construction environment. Examples, illustrating the implementation of information management concepts as distributed components complying to the CORBA standard, are given. Several techniques for integrating existing CIC systems and legacy applications are proposed before finally presenting the user interface through which project participants interact with the distributed components of the integrated environment. The research presented in this paper is ongoing; a primary aim is to refine the prototypes that demonstrate the new levels of integration we can expect in the coming component-based era.

Keywords: Distributed, Computer Integrated Construction, Information Management, Component, CORBA, COMMIT

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Full text: http://www.itcon.org/1996/3 (available to registered users only)

Series: itcon:1996 (browse)
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Brown A, Cooper G, Rezgui Y, Brandon P, Kirkham J

The architecture and implementation of the a distributed computer integrated environment

Abstract: This paper argues that distributed object technology can profitably be put to use in the field of computer integrated construction, and describes its use within the COMMIT project. The COMMIT project aims to provide a computer integrated construction (CIC) environment that provides facilities such as versioning, notification, object rights and the representation of intent. To this end the COMMIT Information Management Model (CIMM) has been proposed, a brief description of which is given here. The paper describes an architecture for a distributed implementation of the CIMM. This architecture uses the CIMM as a bridge between services provided the CORBA distribution standard and core objects in a computer integrated construction environment. A detailed description of the CIMM’s implementation is given, in particular focusing on CIMM objects which reuse CORBA services through specialisation. Several techniques for integrating the CIMM with existing CIC systems and legacy applications are described. Finally, the user interface through which project participants interact with distributed components in the integrated environment is presented.

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Full text: content.pdf (122,744 bytes) (available to registered users only)

Series: w78:1996 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.man-software (0.064245) class.software-software (0.043274) class.environment (0.024686)
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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.


C Zhang, J Beetz

Model Checking on Semantic Web: IFC Validation Using Modularized and Distributed Constraints

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Full text: content.pdf (222,834 bytes) (available to registered users only)

Series: w78:2015 (browse)
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Carrie Sturts Dossick, Anne Anderson, Nishant Bordia and Laura Osburn

Teaching Technological Leadership in Globally Distributed Teams Working with Building Information Models

Abstract: In this paper, the authors analyse leadership learning in distributed student teams working together on Building Information Models (BIM). This paper includes the curriculum design and learning outcomes for student teams consisting of students from Indian Institute of Technology - Madras (IIT) and the University of Washington (UW), USA. The literature on leadership suggests that with current communication technology, students who seek AEC professional careers need to include technological leadership in their learning. In this paper we explore leadership as a social process learned through experience. We conclude that technological leadership learning does occur in globally distributed student team assignments, and that with a two project approach, students can apply their learning in the second project immediately after learning from the first project.

Keywords: Building Information Modelling, Global Teams, Online Collaboration, Leadership

DOI: https://doi.org/10.24928/JC3-2017/0211

Full text: content.pdf (457,792 bytes) (available to registered users only)

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