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 sigradi2009_1086
id sigradi2009_1086
authors Abdelhameed, Wael; Yoshiro Kobayashi
year 2009
title Urban Wiki: An online urban design system
source SIGraDi 2009 - Proceedings of the 13th Congress of the Iberoamerican Society of Digital Graphics, Sao Paulo, Brazil, November 16-18, 2009
summary This research involves the framework and design of Urban Wiki, an online urban design system employing Wiki concept. The term Urban Wiki is created by the researchers; its concepts and methodology will be introduced and presented. Urban Wiki aims to creating a networking system of urban designs, enabling the collaborative work between users around the world. The presented system framework is created and tested by the researchers from two different locations in the world. The purpose of the research is to study how the users can share effectively designing/modeling large scale urban projects. An urban project of a village scale is used to demonstrate the potentials of Urban Wiki, presenting its functions and highlighting the possible uses in the urban area. Moreover, using the created models opens up various urban paths of designing, decision-making, and sharing. Techniques employed in the design of Urban Wiki can potentially be used to build up scalable, easily navigable and extensible models of large-scale entities.
keywords Urban design; urban planning; networking; urban wiki; modeling systems
series SIGRADI
last changed 2016/03/10 08:47

_id acadia08_066
id acadia08_066
authors Ahlquist, Sean; Moritz Fleischmann
year 2008
title Material & Space: Synthesis Strategies based on Evolutionary Developmental Biology
source Silicon + Skin: Biological Processes and Computation, [Proceedings of the 28th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) / ISBN 978-0-9789463-4-0] Minneapolis 16-19 October 2008, 66-71
summary A material system can be defined as a set of self-organized materials, defining a certain spatial arrangement. In architecture, this material arrangement acts as a threshold for space, though space often only appears as a by-product of the material organization. Treating space as a resulting, therefore secondary, independent product minimizes the capacity to generate architecture that is astutely aware of concerns of functionality, environment and energy. An effective arrangement of material can only be determined in relation to the spaces that it defines. When proposing a more critical approach, a material system can be seen as an intimate inter-connection and reciprocal exchange between the material construct and the spatial conditions. It is necessary to re-define material system as a system that coevolves spatial and material configurations through analysis of the resultant whole, in a process of integration and evaluation. ¶ With this understanding of material system comes an expansion in the number of criteria that are simultaneously engaged in the evolution of the design. The material characteristics, as well as the spatial components and forces (external and internal), are pressures onto the arrangement of material and space. ¶ This brings a high degree of complexity to the process. Biological systems are built on methods that resolve complex interactions through sets of simple yet extensible rules. Evolutionary Developmental Biology explains how growth is an interconnected process of external forces registering fitness into a fixed catalogue of morphological genetic tools. Translating the specific framework for biological growth into computational processes, allows the pursuit of an architecture that is fully informed by the interaction of space and material.
keywords Biology; Computation; Material; Parametric; System
series ACADIA
last changed 2009/02/26 07:39

_id avocaad_2001_10
id avocaad_2001_10
authors Bige Tunçer, Rudi Stouffs, Sevil Sariyildiz
year 2001
title Facilitating the complexity of architectural analyses
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary It is common practice for architecture students to collect documents on prominent buildings relevant to their design task in the early stage of design. While practitioners can rely on a body of design experience of their own, during the process of a new design, students can only draw from the examples of success and failure from other architects. In the past, such precedent based learning was implicit in the master-apprentice relationship common in the educational system. Nowadays academics commonly no longer have the possibility to maintain an extensive design practice, and instead introduce important outside precedents to the students. Thus, the study of important historical precedents or designs plays an important role in design instruction and in the students’ design processes. While there is no doubt that the most effective outcome of such a study would be achieved when the student does entire the study herself, students also benefit from a collaboration with peers, where they form groups to do an analysis of various aspects of a same building or over a group of buildings. By integrating the respective results into a common, extensible, library, students can draw upon other results for comparisons and relationships between different aspects or buildings. The complexity this introduces is best supported in a computer medium.The Web offers many examples of architectural analyses on a wide variety of subjects. Commonly, these analyses consist of a collection of documents, categorized and hyperlinked to support navigation through the information space. More sophisticated examples rely on a database for storage and management of the data, and offer a more complex categorization of the information entities and their relationships. These studies present effective ways of accessing and browsing information, however, it is precluded within these analyses to distinguish and relate different components within the project documents. If enabled, instead, this would offer a richer information structure presenting new ways of accessing, viewing, and interpreting this information. Hereto, documents can be decomposed by content. This implies both expanding the document structure, replacing document entities by detailed substructures, and augmenting the structure’s relatedness with content information. The relationships between the resulting components make the documents inherently related by content.We propose a methodology to integrate project documents into a single model, and present an application for the presentation of architectural analyses in an educational setting. This approach provides the students with a simple interface and mechanisms for the presentation of an analysis of design precedents, and possibly their own designs. Since all the information is integrated within a single environment, students will benefit from each others’ studies, and can draw new conclusions across analyses and presentations from their peers.
series AVOCAAD
last changed 2005/09/09 08:48

_id cf08
authors Blaha, Michael R., Premerlani, William J. and Rumbaugh, James E.
year 1988
title Relational Database Design Using An Object- Oriented Methodology
source communications of the ACM. April, 1988. vol. 31: pp. 414-427 : ill. includes a short bibliography
summary Object-oriented concepts provide a useful abstraction for relational database design. In this article the authors present a design technique that has been used for several projects at General Electric. The methodology is intuitive, expressive, and extensible. The new approach to relational database design is based on the work of Loomis, Sha, and Rumbaugh
keywords relational database, design, methods, objects, modeling, representation
series CADline
last changed 2003/06/02 11:58

_id 8802
authors Burry, Mark, Dawson, Tony and Woodbury, Robert
year 1999
title Learning about Architecture with the Computer, and Learning about the Computer in Architecture
source Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 374-382
summary Most students commencing their university studies in architecture must confront and master two new modes of thought. The first, widely known as reflection-in-action, is a continuous cycle of self-criticism and creation that produces both learning and improved work. The second, which we call here design making, is a process which considers building construction as an integral part of architectural designing. Beginning students in Australia tend to do neither very well; their largely analytic secondary education leaves the majority ill-prepared for these new forms of learning and working. Computers have both complicated and offered opportunities to improve this situation. An increasing number of entering students have significant computing skill, yet university architecture programs do little in developing such skill into sound and extensible knowledge. Computing offers new ways to engage both reflection-in-action and design making. The collaboration between two Schools in Australia described in detail here pools computer-based learning resources to provide a wider scope for the education in each institution, which we capture in the phrase: Learn to use computers in architecture (not use computers to learn architecture). The two shared learning resources are Form Making Games (Adelaide University), aimed at reflection-in-action and The Construction Primer (Deakin University and Victoria University of Wellington), aimed at design making. Through contributing to and customising the resources themselves, students learn how designing and computing relate. This paper outlines the collaborative project in detail and locates the initiative at a time when the computer seems to have become less self-consciously assimilated within the wider architectural program.
keywords Reflection-In-Action, Design Making, Customising Computers
series eCAADe
last changed 1999/10/10 12:52

_id 2e56
authors Coyne, Robert Francis
year 1991
title ABLOOS : an evolving hierarchical design framework
source Carnegie Mellon University, Department of Architecture
summary The research reported in this thesis develops an approach toward a more effective use of hierarchical decomposition in computational design systems. The approach is based on providing designers a convenient interactive means to specify and experiment with the decompositional structure of design problems, rather than having decompositions pre-specified and encoded in the design system. Following this approach, a flexible decomposition capability is combined with an underlying design method to form the basis for an extensible and evolving framework for cooperative (humdcomputer) design. As a testbed for this approach, the ABLOOS framework for layout design is designed and constructed as a hierarchical extension of LOOS.’The framework enables a layout task to be hierarchically decomposed, and for the LOOS methodology to be applied recursively to layout subtasks at appropriate levels of abstraction within the hierarchy; layout solutions for the subtasks are then recomposed to achieve an overall solution, Research results thus far are promising: ABLOOS has produced high quality solutions for a class of industrial layout design tasks (an analog power board layout with 60 components that have multiple complex constraints on their placement); the adaptability of the framework across domains and disciplines has been demonstrated; and, further development of ABLOOS is underway including its extension to layouts in 2 1/2D space and truly 3D arrangements. The contribution of this work is in demonstrating an effective, flexible and extensible capability for hierarchical decomposition in design. It has also produced a more comprehensive layout system that can serve as a foundation for the further investigation of hierarchical decomposition in a variety of design domains.
series thesis:PhD
last changed 2003/02/12 21:37

_id cf2005_1_21_74
id cf2005_1_21_74
authors DAVE Bharat
year 2005
title Labyrinthine Digital Histories
source Computer Aided Architectural Design Futures 2005 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-3460-1] Vienna (Austria) 20–22 June 2005, pp. 53-62
summary Interactive and media-rich digital representations are being increasingly used to offer passages through time and space, a role that was traditionally supported by travels and travelogues, maps, sketches, books and oral histories. In the last two decades, a number of projects have been implemented using digital media with the aim of recording past and extant artefacts and environments. However, the future of such digital past remains as fragile as the memories and moments it tries to capture. There is a need to go beyond creating introverted and closed historical reconstruction projects. This paper surveys significant issues and describes our ongoing work in developing an interpretive, extensible and referential framework toward virtual reconstruction projects.
keywords historic reconstruction, relativism, data reuse, semantic representation
series CAAD Futures
last changed 2006/11/07 06:27

_id 6915
authors Dorninger, Peter
year 2003
title XML Technologies and Geodata
source CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary Photogrammetry and Remote Sensing are very important methods for acquisition of geodata. During the previous decade, severalrevolutionary changes occurred in this area. Until the appearance of automated image analysis tools, it was necessary to measureselected points in the images given. At that time, it was much faster and even cheaper to get images of real world objects compared tothe time and money consuming process of manual analyses. So one tried to minimize this effort by measuring only characteristicpoints such as edges, break-lines, peaks and valleys and, for sure, a grid with a given grid step which was selected to meet the efforts.Lots of information in the images was neglected.Digital point matching algorithms and airborne laser scanning provide many new possibilities. The only restriction on spatialresolution is the one of the used sensors. Given a more precise image sensor, the matching algorithm will be able to match moresurface points; given a higher frequency laser scanner, more points can be measured of the same area. And those sensors get moreand more precise every day. Besides, those techniques allow for fast repetition which is necessary to create time series as a basis for4D modeling! However, this fact is accompanied by several problems concerning the capability of available computers. Some years ago, as the first ideas of 3D city models arose, it was very difficult to acquire the necessary data. Today the new sensors and methods have thenecessary capability, but we are not able to handle the available datasets efficiently, because of shortcomings in the past. In a time ofworld wide data exchange through the internet and global datasets, it is necessary to have efficient methods and algorithms tomanage the available data. There is a need for international, vendor independent data exchange and management standards that haveto be accepted and supported by the industry. This article is going to present several methods of data encoding using standardized data formats based on eXtensible Markup Language (XML). After an introduction to this kind of data encoding, two derived applications for management, storage and presentation of geodata are described. As XML data is written in text format, the datasets have the ability to become rather long.Therefore some promising methods to reduce the amount of data are introduced afterwards. XML documents are mainly used fordata exchange between databases. Therefore the capabilities of commonly used database systems for storage of geodata are describedin the end and current implementation results of the Institute of Photogrammetry and Remote Sensing (I.P.F.) are presented.
series other
last changed 2003/03/11 19:39

_id 6ea4
authors Eastman, C.M.
year 1992
title A Data Model Analysis of Modularity and Extensibility in Building Databases
source Building and Environment, Vol 27, No: 2, pp. 135-148
summary This paper uses data modeling techniques to define how database schemas for an intelligent integrated architectural CAD system can be made extensible. It reviews the product data modeling language EDM, then applies it to define a part of an architectural data model. Extensions are then investigated, regarding how users could integrate various design-specific packages into a uniquely configured system. Both, extension by substituting one technology for another and by adding a new evaluation application, are considered. Data modeling allows specification of a CAD database and identification of the kind of modularization that will work and what problems may arise.''
series journal paper
last changed 2003/04/23 13:14

_id 6890
authors Eastman, Charles M. and Weiler, Kevin
year 1979
title Geometric Modeling Using the Euler Operators
source 12 p. : ill. Pittsburgh: Institute of Physical Planning, Carnegie Mellon University, February, 1979. includes bibliography
summary A recent advance in the modeling of three-dimensional shapes is the joint development of bounded shape models, capable of representing complete and well-formed arbitrary polyhedra, and operators for manipulating them. Two approaches have been developed thus far in forming bounded shape models: to combine a given fixed set of primitive shapes into other possibly more complex ones using the spatial set operators, and/or to apply lower level operators that define and combine faces, edges, loops and vertices to directly construct a shape. The name that has come to be applied to these latter operators is the Euler operators. This paper offers a description of the Euler operators, in a form expected to be useful for prospective implementers and others wishing to better understand their function and behavior. It includes considerations regarding their specification in terms of being able to completely describe different classes of shapes, how to properly specify them and the extent of their well-formedness, especially in terms of their interaction with geometric operations. Example specifications are provided as well as some useful applications. The Euler operators provide different capabilities from the spatial set operators. An extensible CAD/CAM facility needs them both
keywords Euler operators, boolean operations, CSG, geometric modeling, CAD, CAM, B-rep, solid modeling, theory
series CADline
last changed 2003/05/17 08:15

_id 467d
authors Eastman, Charles M.
year 1991
title A Data Model Analysis of Modularity and Extensibility in Building Databases
source February, 1991. Report No. 16: This paper uses data modeling techniques to define how database schemas for an intelligent integrated architectural CAD system can be made extensible. It reviews the product data modeling language EDM, then applies it to define a part of an architectural data model. Extensions are then investigated, regarding how users could integrate various design-specific packages into a uniquely configured system
summary Both extension by substituting one technology for another and by adding a new evaluation application, are considered. Data modeling allows specification of a CAD database and identification of the kind of modularization that will work and what problems may arise
keywords database, building, modeling, CAD, integration, systems, architecture, design
series CADline
last changed 2003/05/17 08:15

_id caadria2011_057
id caadria2011_057
authors Fraser, Matthew and Michael Donn
year 2011
title Thinking through digital simulation tasks in architectural education
source Proceedings of the 16th International Conference on Computer Aided Architectural Design Research in Asia / The University of Newcastle, Australia 27-29 April 2011, pp. 599-608
summary This study reports the activities of 80 second year architecture students at Victoria University, Wellington, New Zealand for the duration of a single trimester. A central theme in this studio is the framing of day-lighting problems into a quantifiable investigation and then addressing these through the use of digital modelling and simulation tools. This study offers an insight to undergraduate architecture students’ negotiation of digital design spaces and asks the question of how the knowledge of skill-based specialist tasks are extensible to core design studio.The mass education within a University environment of such specialist skill based techniques allows for an insight to the negotiation of quantitative and qualitative design criteria. The issue of learning skill based tasks at university level is a pertinent topic of study as the critique of such techniques is implicit to the holistic education of Architects but the level of this critique can vary greatly. This question also highlights the challenges faced to improving the design education approaches to computational thinking and applications.
keywords Design analysis; daylight simulation; education
series CAADRIA
last changed 2012/05/30 19:29

_id 8cb8
authors H. Ping Tserng, Pao H. Lin
year 2002
title An accelerated subcontracting and procuring model for construction projects
source Automation in Construction 11 (1) (2002) pp. 105-125
summary Considering the characteristics of highly specialized corporation in the construction industry, it's crucial to select appropriate subcontractors to implement specific subprojects. In this research, the overall subcontracting supply chain of a construction project is considered as a global procurement system and an optimal combination of subcontractors can be obtained within this system. Combining the quick response mechanism of information technology with portfolio theory in financial management, an integrated XML (eXtensible Markup Language) of Accelerated Subcontracting And Procuring (ASAP) model was proposed. The ultimate goal of this study is not only to develop a web-based decision support system for general contractors to accurately decide an appropriate trade-off between risk and profit for different combinations of subcontractors, but to take the subcontracting and procuring process into re-engineering through omnipresent Internet. Author Keywords: Procurement; Subcontracting;
series journal paper
last changed 2003/05/15 19:22

_id acadia10_203
id acadia10_203
authors Jaskiewicz, Tomasz
year 2010
title (In:)forming Interactive Architectural Systems, Case of the xMAiA Meta-model
source ACADIA 10: LIFE in:formation, On Responsive Information and Variations in Architecture [Proceedings of the 30th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-4507-3471-4] New York 21-24 October, 2010), pp. 203-210
summary This paper positions the domain of interactive architecture (iA) and searches for an appropriate model for structure and processing of information in the design and operation of such architecture. It is shown that there are different approaches to ways in which iA system models can be defined, each with numerous advantages and disadvantages. However, due to complexity of encountered problems, application of such models can be only partially validated by simulation and hence their design is inherently dependent on creation of operational and experiential full-scale prototypes of the systems these models represent. Another observation is the lack of correspondence between existing iA models and other contemporary models of computation for architectural geometry, fabrication and engineering. A meta-model for extensible multi-agent interactive architecture (xMAiA) is consequently proposed as a remedy to this situation. xMAiA meta-model is aimed to provide an open framework for integrated evolution, development and operation of interactive architectural systems. It delivers an extensible platform, in which diverse, project-specific models and approaches can be implemented, tested, and further evolved. Such a platform has the potential to empower agile development and operation of interactive architectural ecologies, as well as to substantially facilitate integration of creative design and experiential prototyping from day-1 of project design and development cycle. An example application conforming to the xMAiA meta-model is consequently presented and illustrated with a case study project performed in the university education context.
keywords multi agent systems, interactive architecture, responsive architecture, design tools
series ACADIA
type normal paper
last changed 2010/11/10 06:27

_id avocaad_2001_22
id avocaad_2001_22
authors Jos van Leeuwen, Joran Jessurun
year 2001
title XML for Flexibility an Extensibility of Design Information Models
source AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary The VR-DIS research programme aims at the development of a Virtual Reality – Design Information System. This is a design and decision support system for collaborative design that provides a VR interface for the interaction with both the geometric representation of a design and the non-geometric information concerning the design throughout the design process. The major part of the research programme focuses on early stages of design. The programme is carried out by a large number of researchers from a variety of disciplines in the domain of construction and architecture, including architectural design, building physics, structural design, construction management, etc.Management of design information is at the core of this design and decision support system. Much effort in the development of the system has been and still is dedicated to the underlying theory for information management and its implementation in an Application Programming Interface (API) that the various modules of the system use. The theory is based on a so-called Feature-based modelling approach and is described in the PhD thesis by [first author, 1999] and in [first author et al., 2000a]. This information modelling approach provides three major capabilities: (1) it allows for extensibility of conceptual schemas, which is used to enable a designer to define new typologies to model with; (2) it supports sharing of conceptual schemas, called type-libraries; and (3) it provides a high level of flexibility that offers the designer the opportunity to easily reuse design information and to model information constructs that are not foreseen in any existing typologies. The latter aspect involves the capability to expand information entities in a model with relationships and properties that are not typologically defined but applicable to a particular design situation only; this helps the designer to represent the actual design concepts more accurately.The functional design of the information modelling system is based on a three-layered framework. In the bottom layer, the actual design data is stored in so-called Feature Instances. The middle layer defines the typologies of these instances in so-called Feature Types. The top layer is called the meta-layer because it provides the class definitions for both the Types layer and the Instances layer; both Feature Types and Feature Instances are objects of the classes defined in the top layer. This top layer ensures that types can be defined on the fly and that instances can be created from these types, as well as expanded with non-typological properties and relationships while still conforming to the information structures laid out in the meta-layer.The VR-DIS system consists of a growing number of modules for different kinds of functionality in relation with the design task. These modules access the design information through the API that implements the meta-layer of the framework. This API has previously been implemented using an Object-Oriented Database (OODB), but this implementation had a number of disadvantages. The dependency of the OODB, a commercial software library, was considered the most problematic. Not only are licenses of the OODB library rather expensive, also the fact that this library is not common technology that can easily be shared among a wide range of applications, including existing applications, reduces its suitability for a system with the aforementioned specifications. In addition, the OODB approach required a relatively large effort to implement the desired functionality. It lacked adequate support to generate unique identifications for worldwide information sources that were understandable for human interpretation. This strongly limited the capabilities of the system to share conceptual schemas.The approach that is currently being implemented for the core of the VR-DIS system is based on eXtensible Markup Language (XML). Rather than implementing the meta-layer of the framework into classes of Feature Types and Feature Instances, this level of meta-definitions is provided in a document type definition (DTD). The DTD is complemented with a set of rules that are implemented into a parser API, based on the Document Object Model (DOM). The advantages of the XML approach for the modelling framework are immediate. Type-libraries distributed through Internet are now supported through the mechanisms of namespaces and XLink. The implementation of the API is no longer dependent of a particular database system. This provides much more flexibility in the implementation of the various modules of the VR-DIS system. Being based on the (supposed to become) standard of XML the implementation is much more versatile in its future usage, specifically in a distributed, Internet-based environment.These immediate advantages of the XML approach opened the door to a wide range of applications that are and will be developed on top of the VR-DIS core. Examples of these are the VR-based 3D sketching module [VR-DIS ref., 2000]; the VR-based information-modelling tool that allows the management and manipulation of information models for design in a VR environment [VR-DIS ref., 2000]; and a design-knowledge capturing module that is now under development [first author et al., 2000a and 2000b]. The latter module aims to assist the designer in the recognition and utilisation of existing and new typologies in a design situation. The replacement of the OODB implementation of the API by the XML implementation enables these modules to use distributed Feature databases through Internet, without many changes to their own code, and without the loss of the flexibility and extensibility of conceptual schemas that are implemented as part of the API. Research in the near future will result in Internet-based applications that support designers in the utilisation of distributed libraries of product-information, design-knowledge, case-bases, etc.The paper roughly follows the outline of the abstract, starting with an introduction to the VR-DIS project, its objectives, and the developed theory of the Feature-modelling framework that forms the core of it. It briefly discusses the necessity of schema evolution, flexibility and extensibility of conceptual schemas, and how these capabilities have been addressed in the framework. The major part of the paper describes how the previously mentioned aspects of the framework are implemented in the XML-based approach, providing details on the so-called meta-layer, its definition in the DTD, and the parser rules that complement it. The impact of the XML approach on the functionality of the VR-DIS modules and the system as a whole is demonstrated by a discussion of these modules and scenarios of their usage for design tasks. The paper is concluded with an overview of future work on the sharing of Internet-based design information and design knowledge.
series AVOCAAD
last changed 2005/09/09 08:48

_id e892
authors Kacmar, Charles John
year 1990
title PROXHY: a Process -Oriented Extensible Hypertext Architecture
source Texas A&M University
summary This research describes a new architecture for hypertext environments. The architecture merges the process, object-oriented, and hypertext models to provide hypertext services to object-based, distributed, application components. Through this architecture, applications are integrated to form a comprehensive hypertext computing environment, allowing links to connect applications or objects in different applications. The architecture separates hypertext and application functionality so that multiple applications can use the facilities of a common hypertext layer. The design of the architecture is such that components can be extended or tailored in order to support future applications, multimedia objects, or the needs of specific applications or users. The process-based, object-oriented framework allows objects of arbitrary complexity to live and interact in a hypertext world. Additionally, the protocol and facilities which support component interaction provide location transparency, arbitrary object granularity, and parallel computation over a network. This dissertation provides a conceptual model of hypertext and a general architecture for hypertext system construction. Related literature from object-oriented programming, operating systems, multimedia applications, and database is discussed in terms of the architecture. A hypertext data model, computational model, and hypertext system taxonomy are used to discuss the capabilities of current hypertext systems. Interaction scenarios are provided in order to illustrate object interaction and the distribution of work among the components of the architecture. A prototype system, implemented to demonstrate the feasibility of the architecture, is discussed. The prototype illustrates all aspects of the architecture including distributed application and hypertext components, cross-application linking, and anchors acting as proxy objects for applications. Application scenarios, problems and limitations, and future research issues provide an understanding of the power of the architecture and its potential for impacting the design of next-generation hypertext systems.  
series thesis:PhD
last changed 2003/02/12 21:37

_id ecaade2008_158
id ecaade2008_158
authors Kaga, Atsuko; Sugawara, Shihomi
year 2008
title Research on the Visualization for Analyzing City Changes
source Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 939-944
summary To perceive such changes of city space visually, a three-dimensional (3D) city space model is effective. The use of buildings in a city space is complex, reflecting the number of stories, and the number of stories in many cases. Furthermore, environmental parameters, such as opening a shop developed for conditions of the location, the existence of a building which is easy to divert to some other purpose, a managerial layer, and the whole country, is closely related to city change. A city change can be analyzed from various perspectives if such information can also be accumulated and displayed. If it is expressed in two dimensions, it will be restricted, but if expressed in 3D, the use situation of city space can be grasped quickly. Commercial 3D GIS software is useful for visualizing such a 3D city space model while referring to attribute information. However, such software is expensive and its use is restricted. For this study, highly extensible 3D modeling software is used to develop a technique for visualizing city spaces using its attribute information. Then the developed script is applied to an actual city model in Japan.
keywords City Analysis, Urban design, 3D-model, City Visualization
series eCAADe
last changed 2008/09/09 13:55

_id ecaade2015_336
id ecaade2015_336
authors Koenig, Reinhard
year 2015
title CPlan - An Open Source Library for Computational Analysis and Synthesis
source Martens, B, Wurzer, G, Grasl T, Lorenz, WE and Schaffranek, R (eds.), Real Time - Proceedings of the 33rd eCAADe Conference - Volume 1, Vienna University of Technology, Vienna, Austria, 16-18 September 2015, pp. 245-250
summary Some caad packages offer additional support for the optimization of spatial configurations, but the possibilities for applying optimization are usually limited either by the complexity of the data model or by the constraints of the underlying caad system. Since we missed a system that allows to experiment with optimization techniques for the synthesis of spatial configurations, we developed a collection of methods over the past years. This collection is now combined in the presented open source library for computational planning synthesis, called CPlan. The aim of the library is to provide an easy to use programming framework with a flat learning curve for people with basic programming knowledge. It offers an extensible structure that allows to add new customized parts for various purposes. In this paper the existing functionality of the CPlan library is described.
wos WOS:000372317300026
series eCAADe
last changed 2016/05/16 09:08

_id 2b3a
authors Olsen, Dan R. Jr.
year 1986
title MIKE : The Menu Interaction Kontrol Environment
source ACM Transactions on Graphics. October, 1986. vol. 5: pp. 318-344 : ill. includes bibliography
summary User Interface Management System (UIMS) called MIKE that does not use the syntactic specifications found in most UIMSs is described. Instead, MIKE provides a default syntax that is automatically generated from the definition of the semantic commands that the interaction is to support. The default syntax is refined using an interface editor that allows modification of the representation of the interface. It is shown how active pictures can be created by adding action expressions to the viewports of MIKE's windowing system. The implications of MIKE's command based dialogue description are discussed in terms of extensible interfaces, device and dialogue-style independence, and system support functions
keywords design, user interface, management, systems
series CADline
last changed 2003/06/02 11:58

_id ijac20031208
id ijac20031208
authors Ozel, Filiz; Pahle, Robert; Juyal, Manu
year 2003
title An XML Framework for Simulation and Analysis of Buildings
source International Journal of Architectural Computing vol. 1 - no. 2
summary This study focuses on the problem of how to structure spatial and component based building data with the intention to use it in the simulation and analysis of the performance of buildings. Special attention was paid to the interoperability and optimization of the resulting data files.The study builds its investigation onto XML (Extensible Markup Language) data modeling framework.The authors have studied different ways of arranging building information in XML format for effective data storage and have developed a data modeling framework called bmXML for buildings. Initial results are two-fold: a VBA application was developed to create the appropriate building model in AutoCAD with the intention to write building data in bmXML format, and a JAVA application to view the file thus created.This paper primarily focuses on the former, i.e. the AutoCAD application and the bmXML format.
series journal
last changed 2007/03/04 06:08

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