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Crina Oltean-Dumbrava and Richard Ashley

Assessing The Relative Sustainability Of Management Solutions Using Multi-Criteria Techniques

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Series: w78:2006 (browse)
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D. Ye & T. Froese

A Unified Construction Project Management Arena

Abstract: To address the severe problem of information fragmentation in the construction industry, significant effort has gone into developing information interoperability techniques based on shared project data models. As a result, a wide range of software applications are able to exchange project information, resulting in significant efficiency and coordination improvements. Here, we extend this trend further, exploring the role of an information integrator system that allows users to work directly with the combined set of project information. An information integrator would work in conjunction with traditional applications, allowing users to create user-defined, multi-dimensional data views from the combined project data model, tailored to suit the needs of specific work tasks. In this way, users can maximize the benefit of the combined data model and enhance their ability to deal with the data interdependencies. This paper presents a technical framework for an information integrator for construction project management. It describes the requirements and technical solutions to achieve the necessary integration and flexibility at three layers of system architecture: the data layer, the application logic layer, and the presentation layer. Finally, it describes a prototype information integrator system called the Unified Construction Project Management Arena.

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Full text: content.pdf (173,645 bytes) (available to registered users only)

Series: w78:2009 (browse)
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Dijkstra J, Timmermans H, B de Vries

VR based simulation of user behaviour within the built environment to support the early stages of building design

Abstract: Architects are often faced with the problem to assess how their design decisions will affect the behaviour of individuals. Various performance indicators are related to the behaviour of individuals in particular environments. One approach to deal with this problem is to develop a system that relates user behaviour to design parameters. The paper discusses the framework of a multi-agent system approach for investigating visualized simulated pedestrian activity and behaviour within a building. The approach will lead to a system that may serve as a toolkit in the design process for a better understanding what the design look like, and perhaps more importantly have users will behave in that particular environment. Agent technology is derived from DAI which is also applied in the construction industry (Onuegbu O. Ugwu e.a., The application of DAI in the construction industry, CIT2000, pp. 959-970). The concept of this system is based on micro-simulation of pedestrian flows and multi-agent technology. In this context, pedestrians are people navigating within the built environment. The system simulates how agents move around in a particular 3D environment, in which space is represented as a network which is a lattice of cells with local states, subject to a uniform set of rules, which drives the behaviour of the system. Agents represent pedestrians with their own behaviour, moving over the network. The 3D environment is a virtual environment of the design of a new building or the revitalization of an existing building. Thus, a virtual building environment with virtual pedestrians will be constructed using multi-agent simulation. In this particular environment, a set of instances corresponding to the elements of multi-agent simulations is designed. We distinguish user-agents that represent pedestrians in the simulation. We call the individual that is supposed to walk through the environment a subject-agent and all other simulated pedestrians in the system actor-agents. Thus, subject-agent and actor-agents are user-agents that navigate in this virtual environment, each with their own behaviour, beliefs and intentions. With the simulation system, we will get more insight into the pedestrian activity behaviour and thus in the pedestrian flows in buildings, not yet existing. This will be of great importance in the assessment of design performance. For a designer or researcher, this system approach results in a decision support tool for the early stages in the design process of the construction of a building.

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Full text: content.pdf (484,430 bytes) (available to registered users only)

Series: w78:2001 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.environment (0.029736) class.analysis (0.014083) class.impact (0.008671)
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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.


Dikbas A, Yitmen I, Morten B

An integrated management information system for construction projects

Abstract: Current research focus in the construction industry is directed at implementation of an effective information management based integrated system environment. Construction organizations are developing methodologies of integrating information technology in the work environment of their operations. All construction process improvement strategy is based on integration of effective project planning, monitoring and control techniques provided by an enterprise level of integration of all organizational parameters, functions, members and incorporated technologies. Creating an automated information system in computerized environments via networks using web-based technology enables top-level management to visualize various types planning information to support decision making. Based on the Donation Program which, began in 1997, ITU Campus Construction Projects have been multiplying due to the increased donations from volunteer companies and individuals. Istanbul Technical University’s Project Management Center, established as a research institute center under ITU Rectorate with the main aim seeking efficient solutions in planning, executing and controlling all construction projects within the university campus. The university construction projects are financed through two separate funds. PMC is responsible of managing multiple projects financed through the funding bodies, State Budget and ITU Foundation. For this purpose PMC has undertaken a research project “An Integrated Automation System for ITU Campus Construction Projects”. The objective of this project was to develop an integrated information management tool for effective management of multiple construction projects consisting of monitoring schedule, cost and funding components. This paper describes the model involving the integration of an automation system through decision support utilities for multi-project analysis using web-based technology. The system formulates a process for accumulating the data (all project related documents) in a multi-project environment for multi-task decisions to achieve completion of the multi-projects on time within budget. A review of similar systems available in other countries will be discussed in detail. The paper concludes with a discussion of how the proposed system contributes to the development of the construction industry

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Full text: content.pdf (312,374 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.store (0.036075) class.collaboration (0.017098) class.environment (0.017034)
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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


Divita E L, Fischer M, Kunz J

Integrating software services for preproject-planning

Abstract: Sharing computer models among project participants and their software applications (services) canimprove the quality and reduce the time to perform Pre-Project Planning (PPP) for construction projects.However, sharing knowledge and data among independent services for PPP requires a formal computerinterpretable vocabulary (ontology), and managing the automated interoperation of services requirescontrol architecture and reasoning mechanisms. This research extends PPP process modeling and CircleIntegration. To date, PPP process modeling has been limited to generic representations of the PPPprocess. We present a more formal representation of PPP variables and relationships from which the PPPworkflow process can be derived in real time while performing integrated and automated PPP. We refer tothe specification of PPP variables and relations as the PPP ontology. The PPP ontology provides afoundation from which developers of PPP software services can create PPP analysis services. Suchservices can be joined together in any combination and will work together to perform multi-disciplinaryPPP tasks. Circle integration is an architecture and methodology for integrating software services bylinking them together to form a unified analysis system. We extend circle integration architecture byautomatically relating services to each other at run time and by operationalizing circle integration controlmechanisms that plan, execute, and re-plan the PPP process at run time based upon the requirements ofthe set of services that happen to be connected to the system. In this paper, we describe the structure ofthe PPP ontology and the function of the circle integration mechanisms using a simplified example of golfresort development.

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Full text: content.pdf (111,716 bytes) (available to registered users only)

Series: ecce:2001 (browse)
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Drogemuller R M, Smith J

Integrating the building procurement process using knowledge based technology

Abstract: Computer based methods for facilitating building procurement have been proposed for over twenty years, but progress on such systems has been slow. This paper describes a project built around a three dimensional computer model of the building to be constructed, Knowledge based techniques are used to build up the level of detail required at each stage of development. Data entry requirements are minimised since only the information unique to the project need be entered. Standard information is stored as default values from previous similar projects. The user interface is simple, with a combination of menus to control the flow of information and dialogues to enter textual information. An ‘intelligent’ CAD interface is used to enter the building geometry. The system has been developed around the design and construction of detached houses, but the principles demonstrated are relevant across the standard building types. In its current form the user can access the geometric and spatial parameters of the building, derive costing data and perform thermal analyses. There is an option to export scheduling information to an eaernal CPM program. This furnishes the basis for planning the construction activities. The flexibility of the system indicates that knowledge based systems are a viable technology for assisting construction management.

Keywords: knowledge based systems; knowledge based estimating; multi-expert system; geometric reasoning; Prolog

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Series: w78:1993 (browse)
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Permission to reproduce these papers has been graciously provided by the National University of Singapore. The assistance of the editors, particularly Prof. Martin Betts, is gratefully appreciated.


F Kog, H Yaman

A Multi Agent Systems based Contractor Pre-qualification Model

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Series: w78:2015 (browse)
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F. Wikberg, A. Ekholm & P. Jensen

Configuration with architectural objects in industrialised house-building

Abstract: The construction industry is facing the dilemma of simultaneously reducing costs and increasing quality. An increasing control and standardization of processes and products is strived for, while at the same time regarding customer and society requirements for architectural variation. Industrialised building and development of house building platforms are examples of this development. The research presented here shows a way to analyze the results of the development of a platform for a multi-storey house building system, specifically with regard to the flexibility of the platform. The analysis is based on the use of architectural objects as design interface in different design levels. The method is shown to complement the traditional QFD methodology, and shows the relative dependence of design decision levels.

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Series: w78:2009 (browse)
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Farid Fouchal, Vanda Dimitriou, Tarek M Hassan, Steven Firth, Argyris Oraiopoulos, Jonathan Masior and Sven Schimpf

Decision Support Tool for Energy Efficient Building Retrofit Actions

Abstract: This paper shows a process of developing a decision support tool to automatically generate building retrofit alternatives and rank them using energy performance analysis, user requirements, relevant benchmarks and regulations. Refinement of the retrofit scenarios follows a set of steps from creation of a Building Information Model of a base-case representing the status of the building at the time of the analysis, then creation of combinations for the possible retrofit scenarios. TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) based multi criteria approach is adopted as it relies on identified best alternatives using selected criteria. Ranking of alternatives follows their relative closeness to the identified ideal alternative. Best options are graphically presented.

Keywords: MCDM, Building Retrofit, BIM, Decision Support, Energy Performance

DOI: https://doi.org/10.24928/JC3-2017/0343

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Fischer M, Stone M, Liston K, Kunz1 J, Singhal1 V

Multi-stakeholder collaboration: The CIFE iRoom

Abstract: The CIFE iRoom is a collection of linked software and hardware that allows users to readily structure, display and manipulate the various information used to design and implement a large construction project. The objectives of this research are to define and evaluate new ways for project teams to interact with and visualize project information to facilitate fast and effective decision-making. This paper summarizes the CIFE iRoom infrastructure and gives examples of its use. It shows the importance of separating a model from its view and from its control and of visualizing relationships across different views to conveniently view and compare alternative states of a project model simultaneously.

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Full text: content.pdf (966,473 bytes) (available to registered users only)

Series: w78:2002 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.036680) class.man-software (0.023192) class.man-man (0.009241)
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Permission to reproduce these documents have been graciously provided by the Aarhus School of Architecture, Denmark. The assistnace of the editor, Prof. Kristian Agger, is gratefully aprecciated.


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