CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id caadria2021_110
id caadria2021_110
authors Bao, Ding Wen, Yan, Xin, Snooks, Roland and Xie, Yi Min
year 2021
title SwarmBESO: Multi-agent and evolutionary computational design based on the principles of structural performance
doi https://doi.org/10.52842/conf.caadria.2021.1.241
source A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 1, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 241-250
summary This paper posits a design approach that integrates multi-agent generative algorithms and structural topology optimisation to design intricate, structurally efficient forms. The research proposes a connection between two dichotomous principles: architectural complexity and structural efficiency. Both multi-agent algorithms and Bi-directional evolutionary structural optimisation (BESO) (Huang and Xie 2010), are emerging techniques that have significant potential in the design of form and structure.This research proposes a structural behaviour feedback loop through encoding BESO structural rules within the logic of multi-agent algorithms. This hybridisation of topology optimisation and swarm intelligence, described here as SwarmBESO, is demonstrated through two simple structural models. The paper concludes by speculating on the potential of this approach for the design of intricate, complex structures and their potential realisation through additive manufacturing.
keywords Swarm Intelligence; Multi-agent; BESO (bi-directional evolutionary structural optimisation); Intricate Architectural Form; Efficient Structure
series CAADRIA
email
last changed 2022/06/07 07:54

_id caadria2010_001
id caadria2010_001
authors Hsu, Tse-Wie; Shang-Chia Chiou and Jen Yen
year 2010
title Vine grammar generative system
doi https://doi.org/10.52842/conf.caadria.2010.009
source Proceedings of the 15th International Conference on Computer Aided Architectural Design Research in Asia / Hong Kong 7-10 April 2010, pp. 9-18
summary Graphic designers always take both time and efforts when they are creating a decorative pattern with complicated curves and a great deal of motifs. Although there are many sourcebooks of decorative patterns, the satisfaction of the results couldn’t accomplish with designer’s requirements. Thus, graphic designers need a faster and easier system to create decorative patterns in classical style. There are a few effiencient methods to analysis curves and surfaces in the development of shape grammars. The purpose of this research is to develop Vine Grammar based on shape grammars. The vine grammar analyses principles hidden in the language of deisgn works to create the order, then generates design by using Bézier curves. This research also presents the development of a decorative pattern generative system called Shlishi by using FLASH Action Script 2.0. The grammar can be applied with computers and to verify rules quickly by Shlishi. The intention of this research is to make graphic designers to use these rules to create decorative patterns of plants in classic style and to produce satisfactory results for designer more efficiently or to make the results the source materials for the follow-up design works.
keywords Vine; Shlishi; decorative patterns; shape grammar; generative design system
series CAADRIA
email
last changed 2022/06/07 07:50

_id caadria2010_026
id caadria2010_026
authors Kann, Jeff W. T. and John S. Gero
year 2010
title Studying designers’ behaviour in collaborative virtual workspaces using quantitative methods
doi https://doi.org/10.52842/conf.caadria.2010.273
source Proceedings of the 15th International Conference on Computer Aided Architectural Design Research in Asia / Hong Kong 7-10 April 2010, pp. 273-282
summary This paper presents a case study comparing the behaviour of designers in a collaborative 3D virtual environment with those in a face-to-face environment using quantitative tools to examine their design protocols. It starts with depicting a design ontology along with two methods of analysis for this investigation. The results in this case show that the 3D environment increases the designer’s Structure activities. The rate of meaningful design communication is slower than the base-line face-to-face session. This communication reflects the rate of design cognition when the design process is “close coupled”. Reviewing the design protocol suggests that the 3D design session composed of both “loosely coupled” and “close coupled” periods. This is consistent with other studies that 3D collaborative tools may encourage “loosely coupled” design process.
keywords Design behaviour; virtual workspaces; protocol analysis; quantitative methods; design ontology
series CAADRIA
email
last changed 2022/06/07 07:51

_id ascaad2010_271
id ascaad2010_271
authors Sharkasi, Nour; Ramzi Hassan and Caroline M. Hagerhal
year 2010
title Presence in Virtual Cave
source CAAD - Cities - Sustainability [5th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2010 / ISBN 978-1-907349-02-7], Fez (Morocco), 19-21 October 2010, pp. 271-278
summary Virtual Reality (VR) is usually recognized as a tool that enables the viewer to move freely in a three dimensional digital environment. In this virtual world, different levels of immersion could be reached. Using VR to visualize sites and places from the past, presents and future is widely acknowledged. This study is making use of a recently installed U-Cave theatre at Birzeit University (BZU) in Palestine and a Con-Cave VR theatre at the Norwegian University of Life Sciences (UMB).In the study, we test hypotheses connected to presence in virtual reality environments, using the case of historical sites. Historical sites in general are important for reasons of cultural identification and environmental integrity. In many historical sites, it is difficult for a layperson to read and understand the meaning of the site, for that the remaining ruins don’t provide enough information. This study will contribute to improving the public understanding for historical sites by unfolding the role of Virtual Reality to overcome the harsh reality of many damaged historical sites. The story-line of the site can be easily portrayed by re-constructing the original site in a virtual environment. The study also elaborates on the enriched sense of presence made possible by implementing different levels of details in the VR environment. Presence in VR environments is usually defined as “being there”, with high consideration of the physical ether of the virtual environment, the definition confines attention to the sensation of place. This study calls for expanding the attention to the dimension of time that is made possible by innovative design of VR environment. The study argues that virtual reality technology does not only provide a 3-D experience to subjects, it can also add a fourth dimension by conveying the unconsciousness of man from the meanwhile moment to a different timeframe. Based on the current knowledge on presence in virtual environments, we will use a questionnaire to measure subjective presence for the two VR theatre systems. The study will make use of the following factors in order to determine the degree of presence in the virtual environment: (1) naturalness of interface design and involvement, (2) control and interaction, (3) quality of technical capabilities, and (4) negative effects. The outcome of the study will verify or falsify some of the following hypotheses: • There is a correlation between modeling techniques and presence. The perception of the visual experience differs between traditional media and an immersive VR environment. • A presentation of a historical site in a VR-Cave environment will increase our subject’s awareness of the identity of the historical site. • The presence level is correlated to previous real exposure. Subjects who had been to a ruined historical site in real life, would experience higher level of presence toward the VR presentation than those who had not been to the historical site in reality. • Because of the display enclosure surround effect, it is believed that presence in a Con-Cave would be higher than of U-Cave VR environment.
series ASCAAD
type normal paper
email
last changed 2011/03/01 07:47

_id ascaad2021_041
id ascaad2021_041
authors Taºdelen, Sümeyye; Leman Gül
year 2021
title Social Network Analysis of Digital Design Actors: Exploratory Study Covering the Journal Architectural Design
source Abdelmohsen, S, El-Khouly, T, Mallasi, Z and Bennadji, A (eds.), Architecture in the Age of Disruptive Technologies: Transformations and Challenges [9th ASCAAD Conference Proceedings ISBN 978-1-907349-20-1] Cairo (Egypt) [Virtual Conference] 2-4 March 2021, pp. 280-292
summary This research asks the question of how the design knowledge production mechanism is processed differentiates digital design actors from each other in the social media/professional and academic fields of architecture. Due to the broad nature of the research question, the study focuses on academia and academia-related media through prominent architect-authors and subject titles in the literature. Bourdieu’s concept of capital is introduced, in which cultural and symbolic capital are considered part of the production values of digital design actors. Digital design actors use image-based social media tools such as Instagram effectively. The paper uses two methods: the first is a bibliographical analysis of author-texts, and the second is a social network analysis. By employing the keyword-based search from the Web of Science database, this study has managed to extract papers with full records (citations, keywords, and abstracts), with the journal Architectural Design having most publications. Considering that both academicians and professionals contribute to publications in Architectural Design, we selected all its publications between 2010-2020 for bibliometric analysis. These analysis techniques include the bibliometric network analyses and social network analysis with the focus on visualizing the algorithms and statistical calculations of well-established metrics. The research reveals the most critical nodes of the bibliometric network by calculating the appropriate central metrics. The network formed by the selected Instagram accounts of digital design actors are shown to be a small-scale network group, while the hashtags of digital design concepts are more numerous than the digital design actors.
series ASCAAD
email
last changed 2021/08/09 13:11

_id caadria2021_253
id caadria2021_253
authors Vivanco Larrain, Tomas, Valencia, Antonia and Yuan, Philip F.
year 2021
title Spatial Findings on Chilean Architecture StyleGAN AI Graphics
doi https://doi.org/10.52842/conf.caadria.2021.1.251
source A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 1, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 251-260
summary The use of StyleGAN algorithms proposes a novel approach in the investigation of architectural images. Even though graphical outcomes produced by StyleGAN algorithms are far from being architectural spaces, they might become a starting point in the creative process of architectural projects. By creating a database of specific categories of architectural images located in certain contexts, significant findings might emerge regarding their categorization in accordance to the style of a culture. This research analyzes the architectural images that result from implementing StyleGAN algorithms in a database of images of Chilean houses built between the years 2010 and 2020 and selected as finalist of the ´Project of the Year´ from international viewers and curators of the most viewed architectural website of the world. Our findings suggest that Chilean houses have two distinctive elements strongly influenced by human bias: the proportion of voids in the architectural-like generative volume and the integration of vegetation or landscape.
keywords StyleGAN; Chilean architecture; artificial intelligence; spatial findings
series CAADRIA
email
last changed 2022/06/07 07:58

_id caadria2010_041
id caadria2010_041
authors Zedlacher, S. and A. Wiltsche
year 2010
title Kids and new media: how young people act within virtual architecture
doi https://doi.org/10.52842/conf.caadria.2010.433
source Proceedings of the 15th International Conference on Computer Aided Architectural Design Research in Asia / Hong Kong 7-10 April 2010, pp. 433-442
summary Today’s children are familiar with many fields of new media. They can’t even resist. Even more they have a more natural approach to new technologies than many of the grown-ups. In several workshops we tried to test how these young students would interact within a virtual environment configured for architectural needs. Providing a special setup equipped with a tracking system and sensors we investigated the children’s behaviour and the robustness of our system with regard to the education of elder students and further research.
keywords Virtual environment; tracking system; digitised rooms; space sensing
series CAADRIA
email
last changed 2022/06/07 07:57

_id ed47
id ed47
authors Pektas S T, Pultar M
year 2006
title MODELLING DETAILED INFORMATION FLOWS IN BUILDING DESIGN WITH THE PARAMETER-BASED DESIGN STRUCTURE MATRIX
source Design Studies, 27(1), pp. 99-122
summary The Architecture/Engineering/Construction (AEC) industry is one of the multidisciplinary domains in which collaboration among related parties is of utmost importance. Despite the intense flow of information between design professionals, there is a lack of research to better understand and manipulate these flows. Most of the current process modelling tools in the AEC industry do not enable analyses of iterative information cycles. Moreover, these tools represent the process at high levels, thus, they are inadequate for multi-parameter problems like building design. With a view to alleviate these problems, this paper introduces the use of parameter-based design structure matrix as a process modelling and system analysis tool for building design. The method reveals insights into the process structure, optimum sequence of parameter decisions, iterative cycles and concurrency in the process. The application of the method is demonstrated through a case study on suspended ceiling design in a real-life project.
keywords design management; design processes; modelling; planning; information processing
series other
type normal paper
email
last changed 2005/12/01 15:47

_id c544
id c544
authors Pektas, S T
year 2003
title PROCESS INTEGRATION IN BUILDING DESIGN USING THE PARAMETER-BASED DESIGN STRUCTURE MATRIX
source Design Studies, 27(1), pp. 99-122In B. Tuncer (Ed.), E-Activities in Building Design and Construction. (pp. 63-72). Paris: Europia
summary This paper reviews existing process models in the Architecture-Engineering-Construction (AEC) industry and identifies two common deficiencies in them: 1. Current process models used in the industry still have a top-down approach including very little information about interrelationships at lower levels. Although these models provide a good overview of the design process, they are often too abstract to define, in detail, for complex multi-parameter problems. 2. Iteration is an important problem in collaborative design. However, most of the existing process models fail in identifying and minimizing it. With a view to alleviate these problems, this paper introduces the parameter-based Design Structure Matrix (DSM) as a tool for process integration and improvement in building design. The uses of the tool are shown via simple examples and suggestions are made for further research.

keywords Process Integration, Process Modelling, and Parameter-based Design Structure Matrix
series other
type normal paper
email
last changed 2005/12/01 15:49

_id 64c0
id 64c0
authors Pektas, S T
year 2003
title A FRAMEWORK FOR BUILDING DESIGN PROCESS MODELING WITH PARAMETER-BASED DESIGN STRUCTURE MATRICES
source In C. J. Anumba (Ed.), Innovative Developments in Architecture, Engineering, and Construction. (pp. 25-31). Rotterdam: MillPress
summary Architecture/Engineering/Construction (AEC) industry is one of the multidisciplinary domains in which collaboration among related parties is utmost important. While the knowledge needed for building processes are distributed among the different participants from diverse disciplinary backgrounds, the product of their activities, i.e. the building itself, must be highly integrated. Despite the intense flow of information between design professionals, there is a lack of research to better understand and manipulate these flows. Furthermore, most of the current process modeling tools in the AEC industry do not enable analyses of iteration in the process and they represent the process at high levels with very little information at lower levels. In order to resolve the issues mentioned above, this paper introduces the use of parameter-based dependency structure matrix as a process modeling and system analysis tool for building design. The method reveals insights into the process structure, optimum sequence of parameter decisions, iterative cycles and concurrency in the process. A knowledge management framework for parameter-based DSM applications is proposed and the application of the framework is demonstrated through a real life building design problem.
keywords Design Integration, Design Process Modeling, Information Flow, and Parameter-based Dependency Structure Matrix
series other
type normal paper
email
last changed 2005/12/01 15:52

_id ascaad2014_023
id ascaad2014_023
authors Al-Maiyah, Sura and Hisham Elkadi
year 2014
title Assessing the Use of Advanced Daylight Simulation Modelling Tools in Enhancing the Student Learning Experience
source Digital Crafting [7th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2014 / ISBN 978-603-90142-5-6], Jeddah (Kingdom of Saudi Arabia), 31 March - 3 April 2014, pp. 303-313
summary In architecture schools, where the ‘studio culture’ lies at the heart of students’ learning, taught courses, particularly technology ones, are often seen as secondary or supplementary units. Successful delivery of such courses, where students can act effectively, be motivated and engaged, is a rather demanding task requiring careful planning and the use of various teaching styles. A recent challenge that faces architecture education today, and subsequently influences the way technology courses are being designed, is the growing trend in practice towards environmentally responsive design and the need for graduates with new skills in sustainable construction and urban ecology (HEFCE’s consultation document, 2005). This article presents the role of innovative simulation modelling tools in the enhancement of the student learning experience and professional development. Reference is made to a teaching practice that has recently been applied at Portsmouth School of Architecture in the United Kingdom and piloted at Deakin University in Australia. The work focuses on the structure and delivery of one of the two main technology units in the second year architecture programme that underwent two main phases of revision during the academic years 2009/10 and 2010/11. The article examines the inclusion of advanced daylight simulation modelling tools in the unit programme, and measures the effectiveness of enhancing its delivery as a key component of the curriculum on the student learning experience. A main objective of the work was to explain whether or not the introduction of a simulation modelling component, and the later improvement of its integration with the course programme and assessment, has contributed to a better learning experience and level of engagement. Student feedback and the grade distribution pattern over the last three academic years were collected and analyzed. The analysis of student feedback on the revised modelling component showed a positive influence on the learning experience and level of satisfaction and engagement. An improvement in student performance was also recorded over the last two academic years and following the implementation of new assessment design.
series ASCAAD
email
last changed 2016/02/15 13:09

_id ascaad2010_189
id ascaad2010_189
authors Allahaim, Fahad; Anas Alfaris and David Leifer
year 2010
title Towards Changeability
source CAAD - Cities - Sustainability [5th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2010 / ISBN 978-1-907349-02-7], Fez (Morocco), 19-21 October 2010, pp. 189-200
summary Many buildings around the world have undergone successive changes over their life cycles. Regardless of the type or size of a building there are usually requirements for change due to several unanticipated forces and emerging uncertainties that act upon them. These changes might be in the building’s spatial, structural or service systems. This can be due to changes in the needs of occupants, the market demand or technological advances. Although buildings undergo change, current design practice does not address this and buildings are still designed as if they will remain static. This paper proposes an Adaptable Buildings Design (ABD) Framework to address the issue of adaptability in building design. Using this methodology uncertainties and future changes are first identified. To increase the building’s longevity, flexibility options are embedded and design rules are formulated to trigger these options when necessary. The value of adaptability is then assessed by implementing several simulations using Real Options Analysis (ROA). To demonstrate the approach, the ABD is applied to a multi-use commercial building case study. Flexibility is embedded in the building’s design across several systems allowing it to change and evolve over time based on a set of design rules. The buildings adaptability is then assessed using ROA. Positive results demonstrate the strength of the proposed methodology in addressing future change and uncertaintie.
series ASCAAD
email
last changed 2011/03/01 07:36

_id caadria2010_005
id caadria2010_005
authors Anay, Hakan
year 2010
title Computational aspects of a design process: Mario Botta’s single-family house in Breganzona
doi https://doi.org/10.52842/conf.caadria.2010.049
source Proceedings of the 15th International Conference on Computer Aided Architectural Design Research in Asia / Hong Kong 7-10 April 2010, pp. 49-58
summary The present study aims to foreground and investigate computational aspects of the design process of Mario Botta’s single-family house in Breganzona. Through the selected case, it mainly addresses the research question, “what are the computational aspects of the examined design process and what is the nature of such aspects?” or, otherwise formulated, “what aspects of such a design process could be formalised, and thus, represented or explained in computational terms?” The study primarily involves analysis and investigation of the “material”; the sketches and the drawings produced during the design process and through this material, reinterpretation, and hypothetical reconstruction of the process. The material is taken as the container of design ideas / concepts and operations, and a formal / conceptual analysis is employed to foreground and extract this content.
keywords Design process; design analysis; design computation; design knowledge
series CAADRIA
email
last changed 2022/06/07 07:54

_id ijac20108202
id ijac20108202
authors Apollonio, Fabrizio I.; Cristiana Corsi, Marco Gaiani, Simone Baldissini
year 2010
title An Integrated 3D Geodatabase for Palladio's Work
source International Journal of Architectural Computing vol. 8 - no. 2, 111-133
summary The paper presents a novel digital 3D GIS web-based system entirely founded on Google Earth, built to offer a deep insight into Palladio's opera for restitution of its architectural surveys, reconstruction for historical reasons, analysis for structural and other options, and assembly and presentation of all certified Palladian documentation.The development of the application follows the philosophy of visual computing and it is based on an architectural knowledge representation.The information system is conceived as a typical Rich Internet Application and it is based on the digitalization of the complete Palladian corpus documentation implemented by the Centro Internazionale di Studi di Architettura Andrea Palladio (CISAAP).The 3D geodatabase system is, actually, in use at the Centro as the Palladian information system for researchers and in two expositions at Barbaran da Porto Palace in Vicenza, and at Villa Poiana at Poiana Maggiore, where is widely used by tourists for virtual visits to Palladian buildings.
series journal
last changed 2019/05/24 09:55

_id ecaade2010_118
id ecaade2010_118
authors Araneda, Claudio
year 2010
title Urban Protophenomenon: Introducing the notion of primordial phenomenon in urbanism
doi https://doi.org/10.52842/conf.ecaade.2010.207
source FUTURE CITIES [28th eCAADe Conference Proceedings / ISBN 978-0-9541183-9-6] ETH Zurich (Switzerland) 15-18 September 2010, pp.207-215
summary This paper aims to draw the necessary distinctions in order to contribute to identify, among all the objects that populate our world of perception, the urbanist´s own object of study. In systemic jargon, it aims to distinguish that elemental unity that ensures that a phenomenon is an urban one and none other. This, in order to help to distinguish in turn the urbanist´s own field of action. It calls into question the widespread belief that this object of study might be the already built city as current academic and professional tradition dictates and postulates instead the study of the urban protophenomenonalternatively, of the archetypal citizen- as a genuinely urban route for the attainment of urban knowledge.
wos WOS:000340629400022
keywords Urban phenomenon; Architectural phenomenon; Urban protophenomenon; Architectural protophenomenon; Phenomenology
series eCAADe
email
last changed 2022/06/07 07:55

_id ecaade2010_229
id ecaade2010_229
authors Aschwanden, Gideon D. P. A.; Wullschleger, Tobias; Müller, Hanspeter; Schmitt, Gerhard
year 2010
title Agent based Emission Evaluation of Traffic in Dynamic City Models
doi https://doi.org/10.52842/conf.ecaade.2010.717
source FUTURE CITIES [28th eCAADe Conference Proceedings / ISBN 978-0-9541183-9-6] ETH Zurich (Switzerland) 15-18 September 2010, pp.717-726
summary We present a simulation platform to evaluate procedurally generated 3d city models with a set of agents representing urban street actors and pedestrians towards greenhouse gas emissions from transportation. Our aim is to give architects and urban planners an empiric tool to analyze, predict and quantify traffic fluctuations over time, and define the number of occupants, individual traffic and public transport in a city. In this project we show that the allocation of functions within a city is an important factor for the appearanceof traffic. The occupant’s decisions where they want to go are defined by the allocation of functions – and the distance defines the mode of transportation. We simulate the decision processes and gain information about the path, the mode of transportation, and the emissions they produce, and individual experiences like stress and effort. The autonomous driving cars are equipped with an acceleration based emission model allowing us to evaluate the inpact of jammed streets on the emission of cars.
wos WOS:000340629400077
keywords Urban planning; Multi-agent system; Generative city model; Occupant movement; Traffic emission
series eCAADe
email
last changed 2022/06/07 07:54

_id ecaade2010_196
id ecaade2010_196
authors Augustynowicz, Edyta; Sixt, Stefanie; Georgakopoulou, Sofia
year 2010
title Attractive City - An Interactive City Generator
doi https://doi.org/10.52842/conf.ecaade.2010.379
source FUTURE CITIES [28th eCAADe Conference Proceedings / ISBN 978-0-9541183-9-6] ETH Zurich (Switzerland) 15-18 September 2010, pp.379-387
summary The Attractive City Generator is an interactive installation with which users can create or rearrange virtual cities by placing and moving physical objects. Through the set of simple inputs that the users provide and which represent city areas, landscapes or landmarks, the ACG is capable of creating complex and growing cities. In addition, a plethora of factual feedback on these cities is calculated. Becoming physically involved enhances the learningprocess and increases the user’s interest. The users are drawn to the colourful and simple interface. Due to the practical feedback that the city returns, the users can feel more attached to the city they have created. A dynamic dialogue is formed between the city and its creators, that involves the wishes of the users versus the needs of the virtual city, the practical interaction on the table versus the theoretical calculations taking place inside the computer, the physical input versus the digital output.
wos WOS:000340629400040
keywords Interactivity; City planning; Human-computer interface; L-system; Developmental models
series eCAADe
email
last changed 2022/06/07 07:54

_id acadia22_128
id acadia22_128
authors Azel, Nicolas; Pachuca, Brandon; Wilson, Lucien
year 2022
title Closing the Gap
source ACADIA 2022: Hybrids and Haecceities [Proceedings of the 42nd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-8-1]. University of Pennsylvania Stuart Weitzman School of Design. 27-29 October 2022. edited by M. Akbarzadeh, D. Aviv, H. Jamelle, and R. Stuart-Smith. 128-137.
summary This paper shares KPF Cloud Tools, a platform for using Rhino Compute (McNeel’s REST API for RhinoCommon and Grasshopper) to run a library of Grasshopper tools through a cloud server via a Rhino plugin with a procedurally generated user interface, making it quick to deploy new tools (Robert McNeel & Associates 2010). We describe the professional challenges that the KPF Cloud Tools platform solves, document the technical implementation of the platform, and illustrate its benefit through the impact on a large architectural practice.
series ACADIA
type paper
email
last changed 2024/02/06 14:00

_id ascaad2010_000
id ascaad2010_000
authors Bennadji, Amar; Bhzad F. Sidawi & Rabee M. Reffat (eds.)
year 2010
title CAAD - Cities - Sustainability
source 5th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2010)[ISBN 978-1-907349-02-7], Fez (Morocco), 19-21 October 2010, 361 p.
summary The concepts and applications of Computer Aided Architectural Design (CAAD) have a predominant presence and impacts on our today’s buildings and cities. The 5th international ASCAAD conference invited academics, researchers and professionals interested in CAAD concepts applications on the built environment to join and contribute to the debate on learned lessons from the past and present impacts of CAAD on buildings and cities around the world along with the potential future from a CAAD perspective.
series ASCAAD
email
last changed 2011/03/01 07:36

_id cf2011_p157
id cf2011_p157
authors Boton, Conrad; Kubicki Sylvain, Halin Gilles
year 2011
title Understanding Pre-Construction Simulation Activities to Adapt Visualization in 4D CAD Collaborative Tools
source Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 477-492.
summary Increasing productivity and efficiency is an important issue in the AEC field. This area is mainly characterized by fragmentation, heterogeneous teams with low lifetimes and many uncertainties. 4D CAD is one of the greatest innovations in recent years. It consists in linking a 3D model of the building with the works planning in order to simulate the construction evolution over time. 4D CAD can fill several needs from design to project management through constructivity analysis and tasks planning (Tommelein 2003). The literature shows that several applications have been proposed to improve the 4D CAD use (Chau et al. 2004; Lu et al. 2007; Seok & al. 2009). In addition, studies have shown the real impact of 4D CAD use in construction projects (Staub-French & Khanzode 2007; Dawood & Sika 2007). More recently, Mahalingam et al. (2010) showed that the collaborative use of 4D CAD is particularly useful during the pre-construction phase for comparing the constructability of working methods, for visually identifying conflicts and clashes (overlaps), and as visual tool for practitioners to discuss and to plan project progress. So the advantage of the 4D CAD collaborative use is demonstrated. Moreover, several studies have been conducted both in the scientific community and in the industrial world to improve it (Zhou et al. 2009; Kang et al. 2007). But an important need that remains in collaborative 4D CAD use in construction projects is about the adaptation of visualization to the users business needs. Indeed, construction projects have very specific characteristics (fragmentation, variable team, different roles from one project to another). Moreover, in the AEC field several visualization techniques can represent the same concept and actors choose one or another of these techniques according to their specific needs related to the task they have to perform. For example, the tasks planning may be represented by a Gantt chart or by a PERT network and the building elements can be depicted with a 3D model or a 2D plan. The classical view (3D + Gantt) proposed to all practitioners in the available 4D tools seems therefore not suiting the needs of all. So, our research is based on the hypothesis that adapting the visualization to individual business needs could significantly improve the collaboration. This work relies on previous ones and aim to develop a method 1) to choose the best suited views for performed tasks and 2) to compose adapted multiple views for each actor, that we call “business views”. We propose a 4 steps-method to compose business views. The first step identifies the users’ business needs, defining the individual practices performed by each actor, identifying his business tasks and his information needs. The second step identifies the visualization needs related to the identified business needs. For this purpose, the user’s interactions and visualization tasks are described. This enables choosing the most appropriate visualization techniques for each need (step 3). At this step, it is important to describe the visualization techniques and to be able to compare them. Therefore, we proposed a business view metamodel. The final step (step 4) selects the adapted views, defines the coordination mechanisms and the interaction principles in order to compose coordinated visualizations. A final step consists in a validation work to ensure that the composed views really match to the described business needs. This paper presents the latest version of the method and especially presents our latest works about its first and second steps. These include making more generic the business tasks description in order to be applicable within most of construction projects and enabling to make correspondence with visualization tasks.
keywords Pre-construction, Simulation, 4D CAD, Collaboration, Computer Supported Cooperative Work, Human-Computer Interface, Information visualization, Business view, Model driven engineering
series CAAD Futures
email
last changed 2012/02/11 19:21

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