Cumincad : CUMINCAD Papers : Search Results

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	ecaade2009_099
id	ecaade2009_099
authors	Kinayoglu, Gökçe
year	2009
title	Using Audio-Augmented Reality to Assess the Role of Soundscape in Environmental Perception: An Experimental Case Study at UC Berkeley Campus
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 639-648
doi	https://doi.org/10.52842/conf.ecaade.2009.639
wos	WOS:000334282200077
summary	Sounds, along with other senses, have a profound influence on our perception of the environment. The multi-modality of perceptual processing is influential in cognitive interpretation, semantic and aesthetic evaluations of environmental scenes. This paper describes an experimental case study using audio-augmented reality, carried out in order to better understand how sound influences sense of place. A correlation is established between soundscape and sense of place that depends on audio-visual congruence based on cultural, aesthetic and semantic factors. Subjective influences of soundscape on place experience are grouped and discussed under 5 areas that were possible to identify: Emotive and synaesthetic effects; effects on attention, gaze and behavior; effects on spatial orientation and sense of scale; influence of audio-visual congruence on sense of place; and perception of personal and social space.
keywords	Augmented reality, soundscape, environmental perception, place theory, environmental acoustics
series	eCAADe
type	normal paper
email
last changed	2022/06/07 07:52

_id	ascaad2009_carl_lostritto
id	ascaad2009_carl_lostritto
authors	Lostritto, Carl R.
year	2009
title	Teaching Systems-Thinking with Algorithmic Process: Introduction to computation and programming with processing programming language
source	Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 37-46
summary	This research investigates how algorithm design and scripting as pedagogy can affect generalized design ability and understanding. Logical, systematic thinking is considered foundational in developing architectural design aptitude and is explicit when designing algorithms. The course work presented mandates the construction of process rather than product. Scripting is implemented not as a means to an end but rather a medium for exploration. More valuable than formal generator or problem-solver, these scripted designs test direct aesthetic implications. Further tested is the role of animation in de-linearizing the design process. By isolating the algorithm as topic, technique, and concept, scripting skills and the produced artifact are extendable and are translatable to other media. Algorithm design is presented as a 2-dimensional but temporal endeavor: students script an animate, interactive vector-based image. This facilitates the transition from algorithm to spatial experience while also readying students for form-based explorations. The 2-d temporal exercise is of a similar order of complexity to a 3-dimensional static condition. Pieces of the animation structure are provided as a canvas, specifically the ability of the viewer to manually control a single parametric variable that affects the visual output through a user-interface element. The following and final project of the course expands upon the technique of scripting image in the design of an experience by collaging video, images and animation.
series	ASCAAD
email
last changed	2009/06/30 08:12

_id	acadia18_216
id	acadia18_216
authors	Ahrens, Chandler; Chamberlain, Roger; Mitchell, Scott; Barnstorff, Adam
year	2018
title	Catoptric Surface
source	ACADIA // 2018: Recalibration. On imprecisionand infidelity. [Proceedings of the 38th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-17729-7] Mexico City, Mexico 18-20 October, 2018, pp. 216-225
doi	https://doi.org/10.52842/conf.acadia.2018.216
summary	The Catoptric Surface research project explores methods of reflecting daylight through a building envelope to form an image-based pattern of light on the interior environment. This research investigates the generation of atmospheric effects from daylighting projected onto architectural surfaces within a built environment in an attempt to amplify or reduce spatial perception. The mapping of variable organizations of light onto existing or new surfaces creates a condition where the perception of space does not rely on form alone. This condition creates a visual effect of a formless atmosphere and affects the way people use the space. Often the desired quantity and quality of daylight varies due to factors such as physiological differences due to age or the types of tasks people perform (Lechner 2009). Yet the dominant mode of thought toward the use of daylighting tends to promote a homogeneous environment, in that the resulting lighting level is the same throughout a space. This research project questions the desire for uniform lighting levels in favor of variegated and heterogeneous conditions. The main objective of this research is the production of a unique facade system that is capable of dynamically redirecting daylight to key locations deep within a building. Mirrors in a vertical array are individually adjusted via stepper motors in order to reflect more or less intense daylight into the interior space according to sun position and an image-based map. The image-based approach provides a way to specifically target lighting conditions, atmospheric effects, and the perception of space.
keywords	full paper, non-production robotics, representation + perception, performance + simulation, building technologies
series	ACADIA
type	paper
email
last changed	2022/06/07 07:54

_id	cf2009_159
id	cf2009_159
authors	Marin, Philippe; Lequay, Hervé and Bignon, Jean-Claude
year	2009
title	Un outil évolutionnaire d’aide à la conception architecturale créative : Mise en oeuvre d’un algorithme génétique et prise en compte des paramètres environnementaux; Evolutionary tool assisting creative architectural design: Implementation of an genetic algorithm and assessment of environmental parameters
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 159-172
summary	This work focuses on the development of a tool capable of assisting and supporting architectural design activity. We propose an evolutionary mechanism through the use of a genetic algorithm. Environmental parameters are convoked to drive the evolution. The solar passive qualities of the object under study allow the energizing evaluation. This paper deals with the interaction between verbal thinking and visual thinking through the use of this generative tool.
keywords	Genetic algorithm, creative design, environmental parameters
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	ascaad2009_ahmad_rafi
id	ascaad2009_ahmad_rafi
authors	Rafi, Ahmad; Ruzaimi Mat Rani and Peter Woods
year	2009
title	Human Perception of Visualization Tools Used for Visual Impact Assessment
source	Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 29-36
summary	This paper discusses the visualization tools and methods used to examine human perception in Visual Impact Assessment (VIA). One of the key conservation areas in Kuala Lumpur was selected in the study to measure the impact of different types of visualization tools. This paper recommends that human perception contributes towards the improvements of the visualization tools for VIA. The study found out that the common visualization tools used were not the most preferable tools among respondents. On the contrary most respondent preferred interactive visualization that offered more visual possibilities leading to a better understanding of landscape design. Apart from this, the study identified that the visual perception between the respondents who have different formal education background have similar concerns on the visualization tools tested to them.
series	ASCAAD
email
last changed	2009/06/30 08:12

_id	cf2009_533
id	cf2009_533
authors	Tahrani, Souha; Moreau, Guillaume
year	2009
title	La perception de l’espace urbain par la réalité virtuelle; Perception of urban space through virtual reality
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 533- 546
summary	Urban environment is a “sensible” space; it can manifest itself to our senses through the process of perception. The comprehension of the relation between man and his environment requires a study of spatial perception and its modes of interpretation. This paper proposes to study the perception by using the Virtual Reality (VR) technologies as a tool of qualitative analysis. The study presents an exploratory analysis of visual perception in a real urban path and its virtual modeling. It shows the potentials of virtual environments in the qualitative assessment of urban spaces.
keywords	Perception, virtual reality, mental image, urban space
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	ascaad2009_wael_abdelhameed
id	ascaad2009_wael_abdelhameed
authors	Abdelhameed, Wael
year	2009
title	Assessment of a Physical Planning Project through Virtual Reality: A case study
source	Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 365-378
summary	The study reports an application of VR models in the assessment of a part of physical planning project. The project outputs were different reports, GIS data and maps, and CAD drawings. The GIS data were used to create the VR models by importing Shpfiles of the GIS project outputs to VR software. The study presents VR models and the assessment of the physical planning project in terms of: 1) effect of the population increase, 2) effect of the required residential units, and 3) quality assurance for the current situation and future situation. The method used to build up the VR Models was through satellite images (by Google Earth Pro) and VR software (by UC Win/Road). Different models were built up to visualize and assess the alternative solutions and various influential factors. The study employed Virtual Reality in various urban and planning problems through models that are employed as tools of communication and design. The visualized environment and the associated models facilitated the evaluation of important areas, namely: impact of different factors and alternative solutions. The study concludes that the processes, such as decision making, visualization and representation, performed through VR manifest its importance to different design phases of urban and physical planning.
series	ASCAAD
email
last changed	2009/06/30 08:12

_id	ascaad2016_013
id	ascaad2016_013
authors	Belkis Öksüz, Elif
year	2016
title	Parametricism for Urban Aesthetics - A flawless order behind chaos or an over-design of complexity
source	Parametricism Vs. Materialism: Evolution of Digital Technologies for Development [8th ASCAAD Conference Proceedings ISBN 978-0-9955691-0-2] London (United Kingdom) 7-8 November 2016, pp. 105-112
summary	Over the last decade, paradigm shifts in the philosophy of space-time relations, the change from space-time to spatio-temporality, caused significant changes in the design field, and introduced new variations and discourses for parametric approaches in architecture. Among all the discourses, parametricism is likely the most spectacular one. The founder of parametricism, Patrik Schumacher (2009) describes it as “a new style,” which has “the superior capacity to articulate programmatic complexity;” and “aesthetically, it is the elegance of ordered complexity in the sense of seamless fluidity.” In its theoretical background, Schumacher (2011) affiliates this style with the philosophy of autopoiesis, the philosophy that stands between making and becoming. Additionally, parametricism concerns not only the physical geometry in making of form; but also discusses the relational and causal aspects in becoming of form. In other words, it brings the aesthetic qualities in making through the topological intelligence behind becoming. Regarding that, parametricism seems an effective way of managing /creating complex topologies in form-related issues. However, when it comes to practice, there are some challenging points of parametricism in large-scale design studies. Thus, this work underlines that the dominance of elegance for urban planning has the potential of limiting the flexible and dynamic topology of the urban context, and objectifying the whole complex urban form as an over-designed product. For an aesthetic inquiry into urban parametricism, this paper highlights the challenging issues behind the aesthetic premises of parametricism at the urban design scale. For that, Kartal Master Plan Design Proposal by Zaha Hadid Architects (2006) will be discussed as an exemplary work.
series	ASCAAD
email
last changed	2017/05/25 13:31

_id	ijac20097304
id	ijac20097304
authors	Datta, Sambit; Hanafin, Stuart; Pitts, Gregory
year	2009
title	Experiments with stochastic processes: Facade subdivision based on wind motion
source	International Journal of Architectural Computing vol. 7 - no. 3, 389-402
summary	Constraint based tools for architectural design exploration need to satisfy aesthetic and functional criteria as well as combine discrete and continuous modes of exploration. In this paper, we examine the possibilities for stochastic processes in design space exploration. Specifically, we address the application of a stochastic wind motion model to the subdivision of an external building envelope into smaller discrete components. Instead of deterministic subdivision constraints, we introduce explicit uncertainty into the system of subdivision. To address these aims, we develop a model of stochastic wind motion; create a subdivision scheme that is governed by the wind model and explore a design space of a façade subdivision problem. A discrete version of the façade, composed of light strips and panels, based on the bamboo elements deformed by continuous wind motion, is developed. The results of the experiments are presented in the paper.
series	journal
last changed	2009/10/20 08:02

_id	ecaade2009_129
id	ecaade2009_129
authors	Hemmerling, Marco
year	2009
title	Twister: An Integral Approach towards Digital Design and Construction
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 299-304
doi	https://doi.org/10.52842/conf.ecaade.2009.299
wos	WOS:000334282200036
summary	The paper outlines the relevance of computational geometry within the design and production process of architecture. Based on the case study “Twister”, the digital chain - from the initial form-finding to the final realization of spatial concepts - is discussed in relation to geometric principles. The association with the fascinating complexity, which can be found in nature and its underlying geometry was the starting point for the project presented in the paper. The translation of geometric principles into a three-dimensional digital design model was followed by a process of transformation and optimization of the initial shape, that integrated aesthetic, spatial and structural qualities as well as aspects of material properties and conditions of production.
keywords	Geometry, 3D modeling, rapid prototyping, photogrammetry, digital fabrication
series	eCAADe
email
last changed	2022/06/07 07:49

_id	ascaad2009_marek_hnizda
id	ascaad2009_marek_hnizda
authors	Hnizda, Marek
year	2009
title	Systems-Thinking: Formalization of parametric process
source	Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 215-223
summary	This paper details a design process focused on explicit digital parametric modeling as an integral system-outcome design. This investigation isolates and alters a simple geometric form (cylinder) in a constructed architectural design method. Systems are defined as logical, sequential operations inherent to the resultant effects. These operations within each system are composed of various parameters, singular entities containing or referencing data. Given specific data, operations are preformed culminating with corresponding outcomes. The two main components of this research pertain to object extraction and transformation. A single grain silo (cylinder), as the architectural/geometric object under examination, is tested using a system of varied parameters inputted into the program Grasshopper, an “explicit history” graphic plug-in for Rhinoceros. This application is utilized to digitally manipulate parameters as objects in a nodal arrangement. Throughout the operations execution, this isolated silo will be transformed into a multitude of versions, then regrouped into the original cluster of silos to expose the implications from patterning, adjacency, and repetition given the proximity of the each silo and its new parametric characteristics. As the various parameters in specific operations affect the system as a whole, so is each adjacent silo in proximity given the same or similar operation? This then is translated and reflected in the outcome. This research seeks to explore design process by applying constant digital 3-D reductive geometric, modular forms inviting systems thinking in parametric environments that can lead to architectural design implications. By focusing on the technical aspect of the parameterization and valuing functionality rather then style, the process becomes focused on formal qualities as the system-outcome relationships. This research tests the “aesthetic implications” of a varied mode of digital design, namely the investigation of an architectural process utilizing parametric design.
series	ASCAAD
email
last changed	2009/06/30 08:12

_id	cf2009_353
id	cf2009_353
authors	Meagher, Mark; Van der Maas, David; Abegg, Christian and Huang, Jeffrey
year	2009
title	Dynamic ornament: Climatically responsive surfaces in architectural design
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 353-366
summary	In recent years, sensors and sensor networks have been broadly employed in buildings to monitor diverse aspects of the built environment. Sensors are commonly used to track indoor and outdoor climatic variables such as humidity, temperature, and solar radiation; and to recognize patterns in the activity of people. We propose that in addition to this common instrumental role, data gathered from sensors could also play an important aesthetic and cultural role in the design of engaging architectural spaces. We describe a design study that explores the use of sensor data as a means to qualitatively differen-tiate between spaces within the building, a role traditionally performed by architectural ornament.
keywords	Sentient architecture, thermochromic ink, sensor networks, ornament
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	caadria2009_109
id	caadria2009_109
authors	Wang, Chung-yang
year	2009
title	Statics and Dynamics in The Process of CAD/CAM Fabrication
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 245-254
doi	https://doi.org/10.52842/conf.caadria.2009.245
summary	Through the progress of digital media, dynamic concepts contribute to vivid forms. Nevertheless, these forms still present static space, which cannot reflect the designer’s dynamic concept, a shape that changes over time. This is a setback for design and fabrication. Hence many researchers turn to designing dynamic architecture. However, the current development restricted by technical threshold is prone to solve the variation of functions instead of aesthetic-oriented changeable form. It is obvious that the difference between “statics” and “dynamics” becomes a watershed of aesthetics and functions. This research attempts to eliminate the above-mentioned barrier and to suggest a new CAD/CAM fabrication procedure based on aesthetics and reveal key tectonic factors that affect dynamic architecture.
keywords	CAD/CAM: Statics/Dynamics; Tectonics; Fabrications
series	CAADRIA
email
last changed	2022/06/07 07:58

_id	cf2009_642
id	cf2009_642
authors	Aksamija, Ajla; Iordanova, Ivanka
year	2009
title	Multimodal representations of architectural design knowledge: Interaction between visual and ontological models
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 642- 655
summary	This paper presents multimodal representation of architectural design knowledge, where explicit and implicit information are linked. The aim is to develop computational environment that combines several modes of representation. Integration of interactive digital-models library and ontological model of architectural design factors is investigated.
keywords	Ontology, design referents, design factors, architectural design, digital model library
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	ascaad2009_hafsa_al_omari
id	ascaad2009_hafsa_al_omari
authors	Al-Omari, Hafsa and Luma Al Dabbagh
year	2009
title	Form in Islamic Architecture: A new vision by using 3D Studio Max program
source	Digitizing Architecture: Formalization and Content [4th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2009) / ISBN 978-99901-06-77-0], Manama (Kingdom of Bahrain), 11-12 May 2009, pp. 433-450
summary	Architecture is a record of human civilization, values, principles and concepts. Form (elements and relations) is one of the visual features of identity and self on one hand and expressive features of place and time (scientific and technical development ) on the other hand. Creating new forms from historical forms is considered one of the greatest challenges that face the architect. Research problem centered on the importance of form in Islamic architecture, and the possibility of investment a new scientific method ( 3D Studio Max program) in creating contemporary architecture using historical and traditional Islamic forms. Research divides to three sections. The first is a theoretical framework that determines the importance and the generation and the potentiality of form in Islamic architecture. The second studies the traditional methods that has been used to create a contemporary Arab-Islamic architecture using historical references, then introduce 3D Studio Max program as alternative new scientific method to traditional methods contribute to create a new vision of contemporary Arab Islamic architecture. The conclusions identify the importance of form in the Islamic civilization and showed that the generation of form affected by its potentiality. Research opens new methods that have not been studied previously in creating contemporary Islamic architecture by using the modifier stack in 3D Studio Max program.
series	ASCAAD
email
last changed	2009/06/30 08:12

_id	ecaade2009_044
id	ecaade2009_044
authors	Arpak, Asli; Sass, Larry; Knight, Terry
year	2009
title	A Meta-Cognitive Inquiry into Digital Fabrication: Exploring the Activity of Designing and Making of a Wall Screen
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 475-482
doi	https://doi.org/10.52842/conf.ecaade.2009.475
wos	WOS:000334282200057
summary	The design process is observed in ‘self-reflection’ by an experiment including visual computing, structure design, joint design, and assembly design. The experiment is defined as the making of a self-supporting timber wall screen, which includes laser-cutting and rapid-prototyping. The reciprocal action between the visual and physical realms is observed through the design activity.
keywords	Fabrication, meta-cognition, self-reflection, visual, physical
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2009_164
id	ecaade2009_164
authors	Arslan Selçuk, Semra; Gönenç Sorguç, Arzu
year	2009
title	Exploring Complex Forms in Nature Through Mathematical Modeling: a Case on Turritella Terebra
source	Computation: The New Realm of Architectural Design [27th eCAADe Conference Proceedings / ISBN 978-0-9541183-8-9] Istanbul (Turkey) 16-19 September 2009, pp. 665-672
doi	https://doi.org/10.52842/conf.ecaade.2009.665
wos	WOS:000334282200080
summary	Changing paradigm of nature-architecture relationship has being directly affected from developing science and technologies as well as from the impact of biomimetic inventions in various man made designs. Our perception of forms and structures are also shifting through use of computational techniques. From this aspect, mathematical models can be considered as the first step to analyze the complex forms and structures in nature. In this paper it is aimed to initiate a platform in architecture which will serve for discussions to explore the potentials of these interactions under the impact of computational and information technologies, not only in terms of formal/visual way, but also extending to learn more about the formation process in nature.
keywords	Shells, learning from nature, seashells, mathematical modeling
series	eCAADe
email
last changed	2022/06/07 07:54

_id	sigradi2009_744
id	sigradi2009_744
authors	Assumpção, Paula Sobrino de Souza;
year	2009
title	A influência do usuário sobre a apresentação visual da informação na web: o caso do layout adaptativo e da personalização de layout [User's influence on the visual presentation of information on the web: the case of adaptive layout and layout’s customization]
source	SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary	Ahead of the digital environments expansion which follows the principles of the web 2.0, one can notice a growing opening for user's participation. The proposal of this research is to reflect on how this scenario of participation is strengthening a social structure capable of actively acting not only in the production of digital content, but also in the form of this content presentation. From a survey of cases and a theoretical review, this paper aims to analyze two different types of user’s influence on the visual dimension of web environments. One first - adaptive layout - based on the indirect user’s action and a second - layout’s customization - based on the direct user’s action.
keywords	Web design; web 2.0; architecture of participation; visual presentation
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	cf2009_poster_41
id	cf2009_poster_41
authors	Boeykens, Stefan and Herman Neuckermans
year	2009
title	Visual Programming in Architecture: Should Architects Be Trained As Programmers?
source	T. Tidafi and T. Dorta (eds) Joining Languages Cultures and Visions: CAADFutures 2009 CD-Rom
summary	Most commercial CAAD applications have online communities of end users, through blogs, discussion forums and learning portals. On many occasions, questions lead to the conclusion that the software can only provide the desired functionality using scripting or programming, to fill in the gaps of the software feature set. However, more than once, people suggest that architects are not programmers and that they should not be responsible for adding this functionality. Similarly, when guiding students through some of their technical design studio problems, a comparable reaction is noticed. This is especially remarkable, considering the fact that these students had prior programming courses, as part of their Bachelor of Architecture curriculum.
keywords	Programming, design process, interface, curriculum
series	CAAD Futures
type	poster
email
last changed	2009/08/21 07:40

_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 ‚Äúbusiness views‚Äù. We propose a 4 steps-method to compose business views. The first step identifies the users‚Äô 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‚Äôs 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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