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KK Yum

Why interactive multi-disciplinary collaboration in building design is better than document based design

Abstract: This paper presents a theoretical framework of Interactive Multi-Disciplinary Collaboration (IMDisCo) for building design. This framework puts the whole design and communicative process into a project-based problem solving setting that is compatible to today's supply chain management framework. It also offers a set of evaluation methods based on (1) quality, and (2) cost of the design. An analysis of the framework shows that IMDisCo offers more design options than the conventional approach of document based design. With the help of suitable technology, the turn-around-time of design in IMDisCo can be shorter than the conventional approach. And thus the (theoretical) optimal design quality (cost) can be higher (lower) than the document based design. Three critical success factors for the framework have been presented. Finally, this paper discusses the future work of establishing the IMDisCo framework as an industry framework. In the longer term, the emerging new software that supports goal setting, design and evaluation will further enhance the paradigm shift of interactive multi-disciplinary design.

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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.


Kähkönen K, Leinonen J

Visual product chronology as a solution for accessing building product model data

Abstract: Building product modelling technology is principally aiming for solutions which are capturing the data of gradually developing buildings. In simple terms these solutions can be characterised as storages where the most recent data and its updates exist. At the moment IFC standard is providing a common starting point for sharing building product model data between various applications. Having this as a starting point one major current challenge is to build methods and practical tools for accessing building product models. Here the term access means both data input and different analyses over building product model data. For example, the user needs to find out all building components where changes have appeared during certain period and visualise those in an appropriate level of detail. It is considered that these types of operations shall provide a true basis for wide acceptance and impact of building product modelling technology. Visual Product Chronology is an application, which can be used for linking data from various sources with the objects of building product model and for analysing the content of the resultant data storage. Development of Visual Product Chronology is proving improved understanding of various problems and their potential solutions when we are on way to develop applications enabling versatile but an easy access of building product model data.

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Series: w78:2003 (browse)
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Permission to reproduce these papers has been graciously provided by the University of Auckland. The assistance of the editor who provided the full texts and the structured metadata, Dr. Robert Amor, is gratefully appreciated.


Leusin de A S R, Peixoto L, Madeira L, Nunes R

Establishing the basis for systems interoperability: the terminology challenge

Abstract: System interoperability proposals have been, until now, largely based on text contents. IFC, STEP, XML are languages or standards that need a consensual signification behind their terms. Each term can have many different meanings, depending on the context in which it is inserted and to include a full description of each one in every document is too complicated and irksome. It would be necessary, somewhat, to be able to select the meaning respecting the context, and this would probably consume too many resources. Any text-based system must run over a terminology which is well accepted and perfectly understood by its users. This is one of the main obstacles encountered in reaching full interoperability. Not only because we seldom have, in any language, a technical dictionary for the construction field, which could work as an official reference, but also due to the difficulties of translating between languages. Distinct building cultures and organisations make it difficult to obtain a proper translation. One way to overpass this hindrance is to develop a reference construction terminology, including concepts description and terms interrelationship. The concepts must be associated with a conceptual map, which reflects terms associations and pertinence. This map can be linked to the OCCS Overall Construction Classification System, in order to make the correlation easier. The relationships established through this conceptual map can be easily translated to any system, especially to XML schemes and data descriptions, making it possible to fulfil a real interoperability. Building this terminology is the aim of a Brazilian government- sponsored project, so called CDCON, now in course under the co-ordination of a group of universities and participation of building contractors, suppliers associations and systems developers.

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Series: w78:2002 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.represent (0.031501) class.standards (0.027422) class.software-software (0.017678)
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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.


M Khalfan, T Maqsood, C Egbu, M A Noor

Supply Chain Capital in Construction Industry: A Conceptual Model

Abstract: Supply chain management is one of the concepts adopted from other industries and being translated to suit the construction industry in order to bring improvements within the industry. The recent emphasis is on the integration of the whole supply chain because of the fragmented nature of the industry, and the large number of participants involved in a project development process. One of the aspects to achieve integration is by managing both tacit and explicit knowledge existed within a project supply chain through IT systems and social interaction. The main purpose of this paper is to develop a conceptual model, that provides a link between construction organisations and their learning activities as part of a supply chain of a project, resulting in creation of a learning organisation and a learning supply chain. The model shows that the learning supply chains, consist of learning organisations which would create supply chain capital in order to promote innovation and creativity by managing knowledge in supply chains on long term basis. In addition, the learning organisations would also establish a virtual knowledge transfer among themselves and the supply chains they are involved. The paper also suggests that, as unit of competition changes from organisation verses organisation to chain verses chain under supply chain management, supply chain capital will become increasingly important for sustaining competition within construction industry. Therefore, supply chain capitals are to be created through managing knowledge in supply chains on long term basis using the proposed conceptual model. The model also facilitates innovation and creativity essentially required to thrive in the downturn business environment of today in many countries in different parts of the world.

Keywords: Supply Chain Capital, Supply Chain Integration, Knowledge Management, Construction Industry

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Series: w78:2011 (browse)
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Matyus T, Haunschmied J L, Deistler M, Bruckner H,

Ecoefficiency in residential building -a prototype for optimizing consumption of resources

Abstract: This prototype was developed to determine key figures (classification numbers) for the resources(1) material, (2) energy and (3) (capital) expenditures for residential buildings. Distinction betweenconstruction and utilization phase should give the opportunity to plan long-term ecologically andeconomically sound products (i.e. buildings). Based on these key figures this prototype provides aranking of different modulations of a building. The ranking is done by simultaneous reference to thekey figures using Multi Criteria Decision Making (MCDM) methods.The prototype is an instrument for the decision-maker (planer, builder) to realize the impact onconsumption of material, energy and expenditures of different planning decisions (differentmodulations of a building). The linkage of ecological (material and energy) and economical (costs)rating constitutes an important innovation of the prototype.

Keywords: Eco-efficiency, sustainability, multiple criteria decision making, building constructions

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Series: ecce:2001 (browse)
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Maurício M. e S. Bernardes, Rodrigo M. Ferreira

Work-Task: Computer System For Short And Medium-Term Production Planning And Control

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Series: w78:2006 (browse)
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Miklós Molnár, Ronny Andersson, Anders Ekholm

Benefits of ICT in the construction industry – characterization of the present situation in house-building processes

Abstract: Departing from the hypothesis that R&D within ICT plays an essential role in the transformation of the construction sector from a traditional to an industrialised process, a joint Swedish and French project has been carried out (to be completed in April 2007) to assess the short and medium term possibilities to improve efficiency and quality in multi-storey house-building. This paper describes today’s use of ICT (situation as-is) in Swedish multi-storey house-building projects and identifies a number of key development areas. The research was carried out through steps includ-ing statistical analyses of market data, a case study, a survey with active developers working with R&D in the field of ICT and workshops with construction industry representatives and researchers. Typically, Swedish multi-storey house-building projects are carried out as isolated projects, involving 15 designers, 20 subcontractors and 40 material suppliers. Relations between most of the project participants are ad-hoc. ICT-use is regulated by the architect’s CAD manual regarding layer structures, routines for information exchange during design, use of a project network, hardware, software and filing. 2D CAD is the predominant design tool. ICT is widely used for administrative purposes, especially by the large contractors. Information transfer between participants in and between different stages of the project is inefficient and redundant information is created. Transfer of information is often car-ried out manually. Computer aided design, interoperability, virtual reality, cooperation and ICT-policies, the product definition process, use of systems products, quantity take-off and reuse of experience are identified as development areas where ICT can play an important role to improve productivity and quality. Highest potential to achieve improvement by immediate uptake is attributed by the survey persons to computer aided design, interoperability and reuse of experience. A time span of 2 - 5 years is needed to obtain benefits by more efficient cooperation and ICT-policies and rational quantity take-off.

Keywords: construction processes, house-building, industrialization, information and communication technology (ICT)

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Series: w78:2007 (browse)
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Miyamoto A, Kawamura K

Web-based database system for bridge management systems

Abstract: Careful maintenance is essential to ensure the long-term serviceability of bridges. It is thereforenecessary to establish a database which has a large capacity for storage of time-series dataincluding structural properties at construction completion, inspection records, and repair andmaintenance records, and which utilizes state-of-the-art information and telecommunicationtechnologies to allow such data to be retrieved anytime and also anywhere [1]. This paper outlinesa web-based database system developed in response to this demand. Utilizing datatelecommunication technologies such as the Internet and cellular phones which are rapidlybecoming prevalent, the system is designed to facilitate bridge maintenance in a cost-effectivemanner [2].

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Series: ecce:2001 (browse)
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Mohamad Kassem and Jennifer Li

Big Data Applications in Built Environment: Towards a Use Foundation Model

Abstract: The term Ôbig dataÕ is increasingly permeating the current debate over the present and the future of our built environment. There are heightened expectations about the role big data may or can play in enabling new applications and decisions across the whole lifecycle of assets, from early design phase through construction to operation and end-of-life. It is therefore necessary to analyse the state-of-the-art in big data applications in built environment. This paper presents a structured and systematic literature review on this emerging theme. The results are quantitatively analysed using network and clustering techniques. The research identified distinct clusters within two lenses: (1) the project lifecycle (i.e., design/planning, construction, and operation), and (2) the built environment hierarchy scale (i.e., component/product, building/facility, site, neighbourhood, region and city). Six clusters of big data applications across the two lenses were identified: energy management, traffic management, design & planning, onsite construction activities, city-wide services, and smart cities.The clusters show the level of research intensity around each of their nodes and the connections between the nodes which indicate the emergence of new avenues of investigations. These results represent the first steps towards developing a descriptive ÔUse Foundation model' for big data applications in built environment.

Keywords: Built Environment, Big Data, Internet of Things, Smart Data

DOI: https://doi.org/10.24928/JC3-2017/0220

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Mustafa Oral, Emel Laptali Oral

A computer based system for documentation and monitoring of construction labour productivity

Abstract: Improving labour productivity is one of the most significant areas that may result in competitive advan-tage for construction companies. This requires continuous monitoring, documentation and measurement of factors like quantity of work, site conditions, work conditions and crew characteristics. Time study is a systematic approach that can be applied by the site management to achieve these goals. However, various numbers of tasks to be undertaken are time/cost consuming and may seem to be a burden to the site management. Thus, a computer based system is a requisite for the long term success of the applications. Literature discusses the advantages and disadvantages of three widely used systems for documentation and monitoring of labour productivity on site. This article introduces a novel computer based system for documentation and monitoring of construction labour productivity. The system not only provides a user friendly environment for documentation and monitoring of construction labour productivity but also undertakes various statistical analyses. The future work in-cludes development of a neural network module.

Keywords: construction labour productivity, time study, programming, documentation, monitoring

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Series: w78:2007 (browse)
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