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	ascaad2004_paper15
id	ascaad2004_paper15
authors	Mallasi, Z.
year	2004
title	Identification and Visualisation of Construction Activities’ Workspace Conflicts Utilising 4D CAD/VR Tools
source	eDesign in Architecture: ASCAAD's First International Conference on Computer Aided Architectural Design, 7-9 December 2004, KFUPM, Saudi Arabia
summary	This work addresses the problem arising on all construction sites: the occurrence of workspace interference between construction activities. From a site space planning context, this problem can lead to an inevitable roadblock to the progress of the scheduled construction operations. In real situations, when the spatial congestions occur, they could reduce productivity of workers sharing the same workspace and may cause health and safety hazard issues. The aim of this paper is on presenting a computer-based method and developed tool to assist site managers in the assignment and identification of workspace conflicts. The author focuses on the concept of ‘visualising space competition’ between the construction activities. The concept is based on a unique representation of the dynamic behaviour of activity workspace in 3D space and time. An innovative computer-based tool dubbed PECASO (Patterns Execution and Critical Analysis of Site-space Organisation) has been developed. The emerging technique of 4D (3D + time) visualisation has been chosen to yield an interesting 4D space planning and visualisation tool. A multi-criteria function for measuring the severity of the workspace congestions is designed, embedding the spatial and schedule related criteria. The paper evaluates the PECASO approach in order to minimise the workspace congestions, using a real case study. The paper concludes that the PECASO approach reduces the number of competing workspaces and the conflicting volumes between occupied workspace, which in turn produces better assessment to the execution strategy for a given project schedule. The system proves to be a promising tool for 4D space planning; in that it introduces a new way of communicating the programme of work.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	ddss2004_d-283
id	ddss2004_d-283
authors	Van Bronswijk, J.E.M.H., L.G.H. Koren, and C.E.E. Pernot
year	2004
title	Adapting Epidemiological Methodologies to the Prediction of Health Effects of Built Environment Interventions
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Developments in Design & Decision Support Systems in Architecture and Urban Planning, Eindhoven: Eindhoven University of Technology, ISBN 90-6814-155-4, p. 283-290
summary	The influence of built environments on vitality and productivity of users is paramount. Since the introduction of Industrial, Flexible and Demountable Building, domotics, smart buildings, in general: mass-produced, intelligent and learning built environments, tailored built environments are within reach. This has resulted in the need for methodologies to predict short-term and long-term health effects of different built-environment constellations. Epidemiology has developed and validated methods to assess changes in prevalence of inflictions and other unhealthy conditions, as well as the number of healthy and vital years in a life span. After analysing the relationships among building (services) parts and its combinations, health determinants (exposures) and health outcomes, we could adapt the healthy years assessment (DALY) to changes in construction (insulation, air tightness) and building services engineering (ventilation, heating) for dwellings under Dutch conditions. The most important conclusion is that natural ventilation, mechanical ventilation and balanced ventilation not only differ in their average health effect, but even more so in the size of the ranges of these effects. Other systems, such as heat pumps or photo voltaic cells are expensive but will become economically applicable when healthcare costs are taken into account. These outcomes gave valuable clues for product innovation and opened the possibility to model health in relation to built environments. The method could also be applied to quality classification systems for dwellings.
keywords	Health Prediction, Built Environment, Epidemiology, Modelling
series	DDSS
last changed	2004/07/03 22:13

_id	sigradi2004_357
id	sigradi2004_357
authors	Carlos Calderon and Nicholas Worley
year	2004
title	An automatic real-time camera control engine for the exploration of architectural designs
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This paper is concerned with the use of real-time camera engines in architectural virtual environments as a method of enhancing the user.s experience and as a way of facilitating the understanding of architectural concepts. This paper reports on an initial prototype of a real-time cinematic control camera engine for dynamic virtual environments in the architectural domain. The paper discusses the potential of the system to convey architectural concepts using well known architectural concepts such as rhythm and proposes a series of future improvements to address those limitations. Keywords: virtual environments, camera control, design process, filmaking.
series	SIGRADI
email
last changed	2016/03/10 09:48

_id	avocaad_2003_08
id	avocaad_2003_08
authors	Gernot Pittioni
year	2003
title	A World of Networks - Global and Local Impacts
source	LOCAL VALUES in a NETWORKED DESIGN WORLD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Stellingwerff, Martijn and Verbeke, Johan (Eds.), (2004) DUP Science - Delft University Press, ISBN 90-407-2507-1.
summary	As a couple of years ago the use of computers slowly entered studios of architecture, the development of operating systems actually enables everybody to control even bigger networks within studios or offices. Recently these local networks started to get networked themselves. Interactions between local design partners involve a large variety of problems• different CAD-systems• different versions of the same CAD-system• different methods of transfer• different security ideas• different levels of technical knowledge In the course of extension to a global level these problems in the first approach have been growing dramatically, involving additionally language and mentality problems. But in the outcome the exchange of documents and ideas improves in speed, quality and accuracy or this will at least happen in the near future.Global networking offers a great challenge, we have to give this matter a big deal of efforts to earn the values and results, which may be achieved.
keywords	Architecture, Local values, Globalisation, Computer Aided Architectural Design
series	AVOCAAD
email
last changed	2006/01/16 21:38

_id	ddss2004_ra-99
id	ddss2004_ra-99
authors	Göttig, R., J. Newton, and S. Kaufmann
year	2004
title	A COMPARISON OF 3D VISUALIZATION TECHNOLOGIES AND THEIR USER INTERFACES WITH DATA SPECIFIC TO ARCHITECTURE
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 1-4020-2408-8, p. 99-111
summary	Contemporary advanced virtual reality systems use different stereoscopic 3D visualization technologies. In this study, VR systems from one projection wall up to VR systems with six projection walls have been evaluated. Besides the optical properties tested with architectural 3D models, the user interfaces have been analyzed with reference to exact and intuitive control abilities. Additionally, the workflow of an early architectural design process with CAAD generated 3D models and VR visualization techniques was analyzed. It turns out that current VR systems exhibit shortcomings in visual and spatial representations, as well as tools for an early design process.
keywords	3D-Systems, Virtual Reality, Powerwall, Holobench, HMD, CAVE, User Interfaces, Visual Display Qualities, Design Process
series	DDSS
type	normal paper
last changed	2004/07/03 23:02

_id	509caadria2004
id	509caadria2004
authors	Jaewook Lee, Yongwook Jeong, Seung Wook Kim, Yehuda E. Kalay
year	2004
title	Intelligent Behavior Control of 3D Objects in Virtual Environments
doi	https://doi.org/10.52842/conf.caadria.2004.845
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 845-856
summary	Cyberspace is more malleable than a physical environment, so it can afford much wider range of responsiveness. By applying the concept of place-making, we are experimenting virtual environments which are responsive to their users’ context-specific needs. Since objects are essential components that anchor the users’ various activities, having interactive objects in a 3D virtual environment is a major design concern for developing a dynamic and experience-rich virtual environment. We propose a layered agent model for intelligent behavior control of 3D objects, based on constraint solving process.
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	2004_435
id	2004_435
authors	Jemtrud, Michael
year	2004
title	Between Mediation and Making CIMSp: A Technoètic Modus Operandi
doi	https://doi.org/10.52842/conf.ecaade.2004.435
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 435-442
summary	The following paper describes an ongoing research project whose goal is to define a scalable, hybrid production and deployment protocol (CIMSp) for the creation of virtual environments (VE). Ultimately, the aim is to establish a creative workflow and infrastructure that embodies architectural and urban design activity as practiced by the research unit. The objective of the present paper is to schematically outline the current state of the research and its practical and theoretical context for further development. A theoretical position will be stated which assumes that the content, tool, epistemological, and speculative realms are consubstantial (technoèsis). The practical endeavour is to create the informational and embodied temporal--spatial condition of possibility for the imaginative production of cultural artifacts. It must accommodate varying individual and collaborative forms and styles of making and no presumption of a self-enclosed and referential system is made. A critical position is particularly compelling when this production is immersed in technological modalities of making where information and embodiment are inextricably intertwined. CIMSp is based on the workflow from acquisition and creation to output and storage. The work environment is comprised of a select set of software applications and visualization technologies. Secondly, an XML-based content and information management system is under construction to ensure project quality control, rigorous documentation practices, and bi-directional knowledge feedback procedures to enable an effective and resource-full workflow. Lastly, scalability of output modalities for use in the design process and for final presentation from WWW deployment to a high-resolution collaborative work environment (CWE) is being developed. The protocol is a multiuser mode of creation and production that aims to transform the technologies and their interrelation, thus dramatically impacting the creative process and intended content. It is a digital production workflow that embodies intensive visualization criteria demanded by the end users. The theoretical and practical intention of CIMSp is to provisionally structure the collaborative creative process and enable a choreographed movement between the realms of the technologically mediated and made in the pursuit of significant digital content creation.
series	eCAADe
last changed	2022/06/07 07:52

_id	caadria2004_k-1
id	caadria2004_k-1
authors	Kalay, Yehuda E.
year	2004
title	CONTEXTUALIZATION AND EMBODIMENT IN CYBERSPACE
doi	https://doi.org/10.52842/conf.caadria.2004.005
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 5-14
summary	The introduction of VRML (Virtual Reality Markup Language) in 1994, and other similar web-enabled dynamic modeling software (such as SGI’s Open Inventor and WebSpace), have created a rush to develop on-line 3D virtual environments, with purposes ranging from art, to entertainment, to shopping, to culture and education. Some developers took their cues from the science fiction literature of Gibson (1984), Stephenson (1992), and others. Many were web-extensions to single-player video games. But most were created as a direct extension to our new-found ability to digitally model 3D spaces and to endow them with interactive control and pseudo-inhabitation. Surprisingly, this technologically-driven stampede paid little attention to the core principles of place-making and presence, derived from architecture and cognitive science, respectively: two principles that could and should inform the essence of the virtual place experience and help steer its development. Why are the principles of place-making and presence important for the development of virtual environments? Why not simply be content with our ability to create realistically-looking 3D worlds that we can visit remotely? What could we possibly learn about making these worlds better, had we understood the essence of place and presence? To answer these questions we cannot look at place-making (both physical and virtual) from a 3D space-making point of view alone, because places are not an end unto themselves. Rather, places must be considered a locus of contextualization and embodiment that ground human activities and give them meaning. In doing so, places acquire a meaning of their own, which facilitates, improves, and enriches many aspects of our lives. They provide us with a means to interpret the activities of others and to direct our own actions. Such meaning is comprised of the social and cultural conceptions and behaviors imprinted on the environment by the presence and activities of its inhabitants, who in turn, ‘read’ by them through their own corporeal embodiment of the same environment. This transactional relationship between the physical aspects of an environment, its social/cultural context, and our own embodiment of it, combine to create what is known as a sense of place: the psychological, physical, social, and cultural framework that helps us interpret the world around us, and directs our own behavior in it. In turn, it is our own (as well as others’) presence in that environment that gives it meaning, and shapes its social/cultural character. By understanding the essence of place-ness in general, and in cyberspace in particular, we can create virtual places that can better support Internet-based activities, and make them equal to, in some cases even better than their physical counterparts. One of the activities that stands to benefit most from understanding the concept of cyber-places is learning—an interpersonal activity that requires the co-presence of others (a teacher and/or fellow learners), who can point out the difference between what matters and what does not, and produce an emotional involvement that helps students learn. Thus, while many administrators and educators rush to develop webbased remote learning sites, to leverage the economic advantages of one-tomany learning modalities, these sites deprive learners of the contextualization and embodiment inherent in brick-and-mortar learning institutions, and which are needed to support the activity of learning. Can these qualities be achieved in virtual learning environments? If so, how? These are some of the questions this talk will try to answer by presenting a virtual place-making methodology and its experimental implementation, intended to create a sense of place through contextualization and embodiment in virtual learning environments.
series	CAADRIA
type	normal paper
last changed	2022/06/07 07:52

_id	050225_kapellos-a
id	050225_kapellos-a
authors	Kapellos, Alexandre
year	2004
title	Lightscape - an exploration in interactive lighting
source	ETH postgraduate studies final thesis, Zurich
summary	The aim was to provide a theoretical approach to the lighting project undertaken for the xCube group work. The nds2004 students had decided to build an interactive, computeroptimised structure as their final project, where lights, sensors and textured surfaces were to create an interactive experience for the visitor. For various reasons the interactive aspect was abandoned. The idea to work on a light(-ing) object came up when I discovered a little device called the Barionet™. This device allows you to control an on/off switch remotely, through a web interface or through programming. That was it! The ip_lamp (…its first name): a small object that has its own IP address, and therefore can be accessed via the internet. Turn it on or off… This evolved into the _lightscape where 2 interacting lights send each other data about the other (distance from a wall or number of people for example). The atmosphere of a room becomes dependant of what is going on in another… This work is also an attempt to develop a pluridisciplinary approach to an architectural project by making use of the many tools available to the postgraduate students: programming a simulation in Flash, experimenting with different hardware interfaces or rapidly manufacturing a light box on the 3-axis mill. A cross-over project in a (modest) way.
series	thesis:MSc
last changed	2005/09/09 12:58

_id	2004_380
id	2004_380
authors	Lentz, Uffe and Lykke-Olsen, Andreas
year	2004
title	Quality Control in Visualization Processes
doi	https://doi.org/10.52842/conf.ecaade.2004.380
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 380-386
summary	Computer visualizations of planned built environment and infrastructures are increasingly used as a basis for democratic decisions when the impact of the projects is of wide-ranging interests and influence. It is of great importance for the democratic process that all aspects of the material in a project can be trusted as a basis for discussion and decisions among politicians and citizens. This paper describes the objective aspects of the quality of data in the information basis for 3D visualizations and it calculates the precision that can be achieved by the known methods of 3D-CAD visualization. Furthermore, the paper suggests a model that can secure sufficient quality in future visualization work processes by accumulating documentation for both the factual basic data and information that carry the aim and meaning of the message and make this information accessible through the visualization.
keywords	3Dvisualization, Process Model, Quality Control
series	eCAADe
last changed	2022/06/07 07:52

_id	liewh_pdh_2004
id	liewh_pdh_2004
authors	Liew, Haldane
year	2004
title	SGML: a meta-language for shape grammars
source	PhD dissertation, Department of Architecture, Massachusetts Institute of Technology, Cambridge, Mass
summary	A shape grammar develops a drawing through a series of transformations by repeatedly applying if-then rules. Although the rules can be designed, in principle, to construct any type of drawing, the drawings they construct may not necessarily develop in the manner intended by the designer of the grammar. In this thesis, I introduce a shape grammar meta-language that adds power to grammars based on the shape grammar language. Using the shape grammar meta-language, the author of a grammar can: (1) explicitly determine the sequence in which a set of rules is applied; (2) restrict rule application through a filtering process; and (3) use context to guide the rule matching process, all of which provide a guided design experience for the user of the grammar. Three example grammars demonstrate the effectiveness of the meta-language. The first example is the Bilateral Grid grammar which demonstrates how the meta-language facilitates the development of grammars that offer users multiple design choices. The second grammar is the Hexagon Path grammar which demonstrates how the metalanguage is useful in contexts other than architectural design. The third and most ambitious example is the Durand grammar which embodies the floor plan design process described in Précis of the Lectures of Architecture, written by JNL Durand, an eighteenth century architectural educator. Durand's floor plan design process develops a plan through a series of transformations from grid to axis to parti to wall. The corresponding Durand grammar, which consists of 74 rules and 15 macros organized into eight stages, captures Durand's ideas and fills in gaps in Durand's description of his process. A key contribution of this thesis is the seven descriptors that constitute the meta-language. The descriptors are used in grammar rules: (1) to organize a set of rules for the user to choose from; (2) to group together a series of rules; (3) to filter information in a drawing; (4) to constrain where a rule can apply; and (5) to control how a rule is applied. The end result is a language that allows the author to create grammars that guide users by carefully controlling the design process in the manner intended by the author.
series	thesis:PhD
email
last changed	2005/09/09 12:58

_id	sigradi2004_078
id	sigradi2004_078
authors	Luisa Rodrigues Félix; Adriane Borda Almeida da Silva; Neusa Mariza Rodrigues Félix
year	2004
title	Entre béziers e nurbs: Ensino de formas livres no contexto arquitetônico [Between Béziers and Nurbs: Teaching Free Forms in an Architectural Context]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This work intends to contribute to the use of techniques to represent free forms in didactic activities. It enlarges a previous study using only one technique to represent parametric curves and surfaces. It includes the NURBS technique, without discharging the BEZIER technique used before. Some exercises were structured using both techniques to model a representative example of Architecture: the Ronchamp Chapel . architect Le Corbusier. The tasks were compared to highlight the knowledge elements existing in both activities and its necessity of enlargement to move from one to another. Its is observed that the use of different techniques, as NURBS and Bezier, emphasize the specific characteristics of the geometric entities, establishing the control of parameters for free forms in the context of architectural graphics.
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	2004_262
id	2004_262
authors	Martens, Bob
year	2004
title	CAAD-Repositories for Scientific Information Exchange - An Overview on SciX-Pilots Related to CAAD
doi	https://doi.org/10.52842/conf.ecaade.2004.262
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 262-268
summary	Academic publishing started in the hands and under the control of learned societies. Open access to digital publications has the potential of returning control to these associations again. In this paper CAAD-related digital library pilots, which were developed in the framework of the SciX-project (“Open, Self Organising Repository for Scientific Information Exchange”) will be elaborated. SciX focused its work on the infrastructure and business models for subject-specific repositories. Electronic publishing can re-establish the central role of scientific communities and associations in the scientific publishing process.
keywords	Database Systems; Scientific Knowledge Management; Retrospective CAAD Research; Web-Based Bibliographic Database
series	eCAADe
email
last changed	2022/06/07 07:59

_id	1410
id	1410
authors	Muñoz, Patricia; López Coronel, Juan
year	2004
title	CONTINUITY IN SPATIAL SURFACES FOR INDUSTRIAL DESIGN
source	Proceedings of the Fourth International Conference of Mathematics & Design, Special Edition of the Journal of Mathematics & Design, Volume 4, No.1, pp. 97-104.
summary	The purpose of this enquiry was to verify the way in which CAD systems and their tools for visual surfaces analysis interact with morphological knowledge in the determination of continuity in products of industrial design. We acknowledge that geometrical knowledge is necessary but not enough for working with this attribute of form in everyday objects, where cultural factors are involved. Geometry establishes a progressive range of continuity of surfaces that involves the concepts of position, tangency and curvature. In product design we find different degrees of continuity that not necessarily follow this idea of increment. What is understood as discontinuous in products in most cases is geometrically continuous. The control of smoothness in the shape of objects, is influenced by the way in which the form was created and by the different communicational, functional and technological elements that identify a product of industrial design. Subtlety in the suggestion of form, by means of the regulation its continuity, is what turns it suggestive through design. We consider that the development of the geometry of digital drawing systems in three dimensions should be an integrating process, where CAD developers and designers work closer in order to potentiate both activities.
series	other
type	normal paper
email
last changed	2005/04/07 12:50

_id	sigradi2004_313
id	sigradi2004_313
authors	Natalie Johanna Groetelaars; Arivaldo Leão de Amorim
year	2004
title	Levantamento fotogramétrico digital da capela de nossa senhora da escada [Digital Fotogrammetric Levantamento Does not Give Capela of Nossa Senhora Escada???]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	This article describes the use of digital photogrammetric techniques for the survey of Chapel Nossa Senhora da Escada, declared heritage by IPHAN . Institute for National Artistic and Historical Heritage . in 1962. It is one of the firsts chapels built in Brazil, in the middle of sixteenth century. In this paper, we present and discuss the procedures used in this building surveying, since the planning of the measurements until the creation of the photorealistic model in PhotoModeler software. Finally, the accuracy of the 3D model is verified using control points measured by topographical methods.
keywords	Heritage documentation, digital photogrammetry, surveying, 3D geometric modeling
series	SIGRADI
email
last changed	2016/03/10 09:56

_id	111caadria2004
id	111caadria2004
authors	Nimish Biloria
year	2004
title	Developing Concept Prototypes for Electronic Media Augmented Spatial Skins - An Investigation Into Biotic Processes, Material Technologies and Embedded Computation for Developing Intelligent Systemic Networks
doi	https://doi.org/10.52842/conf.caadria.2004.159
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 159-172
summary	The recurrent issue of materializing a responsive architectural spatiality, emergent, in its conception and the need for collaborative substantiation of the design process, utilizing a multidisciplinary approach towards developing intelligent architectonics are exemplified upon in this research paper through a design research experiment conducted by the author: Developing concept prototypes for electronic media augmented spatial skins. The skin is conceptualized as a synergetic merger of scientific investigations into the fields of Bio-mimetics, control system, material technology and embedded computation techniques.
series	CAADRIA
last changed	2022/06/07 07:58

_id	sigradi2004_216
id	sigradi2004_216
authors	Pablo C. Grazziotin; Benamy Turkienicz; Luciano Sclovsky; Carla M. D. S. Freitas
year	2004
title	Cityzoom - A tool for the visualization of the impact of urban regulations
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	Visualization has been used for many years as an important way of presenting architectural design and projects. However, beyond design, planning urban areas requires the analysis of different factors. Urban regulations are planning tools used to control and/or stimulate changes in the urban structure and to reproduce a certain level of quality of the urban milieu. Land area, built area, plot rate, average building height, and other important attributes can be easily obtained from the geometric objects in the city model or explicitly associated to them. This paper presents a system, CityZoom, which integrates several performance tools that allow the simulation of different attributes related to a planned or existing city. These attributes are shown in different ways either as tables of attribute values estimated from model evaluation, or 3D scenarios where the user can navigate and observe realistic shadows and daylighting estimation based on the concept of solar envelope.
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	sigradi2008_166
id	sigradi2008_166
authors	Papanikolaou, Dimitris
year	2008
title	Digital Fabrication Production System Theory: Towards an Integrated Environment for Design and Production of Assemblies
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	A Digital Fabrication Production System (DFPS) is a concept describing a set of processes, tools, and resources that will be able to produce an artifact according to a design, fast, cheap, and easy, independently of location. A DFPS project is a complex assembly of custom parts that is delivered by a network of fabrication and assembly processes. This network is called the value chain. The workflow concept of a DFPS is the following: begin design process with a custom geometric form; decompose it into constructible parts; send the part files for fabrication to various locations; transport all parts at the construction site at the right time; finally, assemble the final artifact. Conceptually it means that based on a well structured value chain we could build anything we want, at anyplace, at controllable cost and quality. The goals of a DFPS are the following: custom shapes, controllable lead time, controllable quality, controllable cost, easiness of fabrication, and easiness of assembly. Simply stated this means to build any form, anywhere, accurately, cheap, fast, and easy. Unfortunately, the reality with current Digital Fabrication (DF) projects is rather disappointing: They take more time than what was planned, they get more expensive than what was expected, they involve great risk and uncertainty, and finally they are too complex to plan, understand, and manage. Moreover, most of these problems are discovered during production when it is already late for correction. However, there is currently no systematic approach to evaluate difficulty of production of DF projects in Architecture. Most of current risk assessment methods are based on experience gathered from previous similar cases. But it is the premise of mass customization that projects can be radically different. Assembly incompatibilities are currently addressed by building physical mockups. But physical mockups cause a significant loss in both time and cost. All these problems suggest that an introduction of a DFPS for mass customization in architecture needs first an integrated theory of assembly and management control. Evaluating feasibility of a DF project has two main problems: first, how to evaluate assemblability of the design; second, how to evaluate performance of the value chain. Assemblability is a system’s structure problem, while performance is a system’s dynamics problem. Structure of systems has been studied in the field of Systems Engineering by Network Analysis methods such as the Design Structure Matrix (DSM) (Steward 1981), and the liaison graph (Whitney 2004), while dynamics of systems have been studied by System Dynamics (Forrester 1961). Can we define a formal method to evaluate the difficulty of production of an artifact if we know the artifact’s design and the production system’s structure? This paper formulates Attribute Process Methodology (APM); a method for assessing feasibility of a DFPS project that combines Network Analysis to evaluate assemblability of the design with System Dynamics to evaluate performance of the value chain.
keywords	Digital Fabrication, Production System, System Dynamics, Network Analysis, Assembly
series	SIGRADI
email
last changed	2016/03/10 09:57

_id	2004_404
id	2004_404
authors	Pellitteri, P., Colajanni, B. and Concialdi, S.
year	2004
title	The Architectural Envelope: an Assistant for Components Design Choices
doi	https://doi.org/10.52842/conf.ecaade.2004.404
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 404-409
summary	The global envelope to day focuses on it a lot of attention from architects, progressively replacing the classical concepts of wall and roof. It is a complex component, entrusted with the delicate goal of mediating between exterior and interior space, between a space boundary and a bearing structure. Its main parts are the glass wall, a substructure resisting the loads and transmitting them to the bearing structure, and the connection of the two. The latter, in turn, comprises a fitting and a bracket. The set of relationships between these components and sub-components needs the control of many conditions of consistency. The tool presented is an Assistant performing just this task helping the designer to select in each project situation the best couple of two main envelope components: fitting and bracket. The Assistant structure lends itself to implement an intelligent commercial product catalog. It seems also fit to manage component selections strongly conditioned by consistency constrains between collaborating elements.
keywords	Design Assistant, Envelope, Product Selection
series	eCAADe
email
last changed	2022/06/07 08:00

_id	acadia07_074
id	acadia07_074
authors	Peters, Brady
year	2007
title	The Smithsonian Courtyard Enclosure: A Case-Study of Digital Design Processes
doi	https://doi.org/10.52842/conf.acadia.2007.074
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 74-83
summary	This paper outlines the processes involved in the design of the Smithsonian Institution’s Patent Office Building’s new courtyard enclosure. In 2004, Foster + Partners won an invited international competition to design the new courtyard enclosure in Washington, D.C. Early in the project, the Specialist Modelling Group (SMG), an internal research and design consultancy, was brought in to advise the project team on computer modelling techniques, develop new digital design tools, and help solve the complex geometric issues involved. Throughout the project, computer programming was used as one of the primary tools to explore design options. The design constraints were encoded within a system of associated geometries. This set-out geometry performed as a mechanism to control the parameters of a generative script. The design evolution involved the use of many different media and techniques and there was an intense dialog between a large team and many consultants. The computer script was a synthesis of the design ideas and was constantly modified and adapted during the design process. The close collaboration between architects, consultants, and fabricators was of key importance to the success of the project. This project, now named The Robert and Arlene Kogod Courtyard, will complete in late 2007.
series	ACADIA
email
last changed	2022/06/07 08:00

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