@inproceedings{RenShiXu2004, author = {Ren, Aizhu and Shi, Jianyong and Xu, Yun}, title = {Modeling of Buildings and Roads for Urban Applications based on 2D Digital Maps}, doi = {10.25643/bauhaus-universitaet.179}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1791}, year = {2004}, abstract = {Three-dimensional models of urban objects play an important role in the urban applications such as urban planning, environmental concerning, or urban disaster mitigations. While the modeling of urban objects is time consuming and storage costing. This paper presents solutions for this. Buildings with regular shapes and plane roofs are constructed into computer models by identifying of graphic elements from the digital maps of urban area to get building base plane and building heights. Buildings with irregular shapes and non-plane roofs are constructed into computer models by employment of a specific system developed by the authors. Road objects and topologies are constructed into computer models by employment of specific algorithms. The solutions presented in this paper has been used in the development of urban disaster mitigation system for Shantou, China.}, subject = {Architektur}, language = {en} } @article{SemenovBazhanMorozov2004, author = {Semenov, Vitaly and Bazhan, Andrew and Morozov, Sergey}, title = {Distributed STEP-Compliant Platform for Multimodal Collaboration in Architecture, Engineering, and Construction}, doi = {10.25643/bauhaus-universitaet.261}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2616}, year = {2004}, abstract = {This paper presents an innovative software platform OpenSTEP intended to build advanced distributed integrated systems and to conduct multidisciplinary collaborative projects in both academy and industry. The paper discusses an open system architecture, methodology, component library and CASE toolkit enabling the developers to build a wide range of interoperable applications and systems compliant with STEP and, particularly, with IFC becoming the increasingly important standard for information integration in architecture, engineering and construction.}, subject = {Framework }, language = {en} } @phdthesis{Hauschild2003, author = {Hauschild, Thomas}, title = {Computer Supported Cooperative Work-Applikationen in der Bauwerksplanung auf Basis einer integrierten Bauwerksmodellverwaltung}, doi = {10.25643/bauhaus-universitaet.64}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20040311-672}, school = {Bauhaus-Universit{\"a}t Weimar}, year = {2003}, abstract = {Gegenstand der vorliegenden Arbeit ist die Konzeption und prototypische Umsetzung von Techniken des Computer Supported Cooperative Work (CSCW) im Rahmen einer integrierten objektorientierten und dynamischen Bauwerksmodellverwaltung zur Unterst{\"u}tzung der Bauwerksplanung. Die Planung von Bauwerken ist durch einen hohen Grad an Arbeitsteiligkeit, aber auch durch eine schwache Strukturierung der ablaufenden Prozesse gekennzeichnet. Besonders durch den Unikatcharakter des Planungsgegenstands \'Bauwerk\' ergeben sich signifikante Unterschiede zum Entwurf anderer, durch Serienfertigung produzierter Industrieg{\"u}ter. Zunehmend wird die Planung von Bauwerken in Virtual Enterprises ausgef{\"u}hrt, die sich durch eine dynamische Organisationsstruktur, geographische Verteilung der Partner, schwer normierbare Informationsfl{\"u}sse und eine h{\"a}ufig stark heterogene informationstechnische Infrastruktur auszeichnen. Zur rechnerinternen Repr{\"a}sent! ation des Planungsgegenstands haben sich objektorientierte Bauwerksmodelle bew{\"a}hrt. Aufgrund der Ver{\"a}nderlichkeit der Bauwerke und deren rechnerinterner Repr{\"a}sentation im Laufe des Bauwerkslebenszyklus ist eine dynamische Anpassung der Modelle unumg{\"a}nglich. Derartige in Form von Taxonomien dargestellte dynamische Bauwerksmodellstrukturen k{\"o}nnen gemeinsam mit den in Instanzform vorliegenden konkreten Projektinformationen in entsprechenden Modellverwaltungssystemen (MVS) gehandhabt werden. Dabei wird aufgrund der Spezialisierung und Arbeitsteilung im Planungsprozess von einer inhaltlich verkn{\"u}pften Partialmodellstruktur, die r{\"a}umlich verteilt sein kann, ausgegangen. Die vorgeschlagenen Methoden zur Koordinierung der Teamarbeit in der Bauwerksplanung beruhen auf der Nutzung von CSCW-Techniken f{\"u}r \'Gemeinsame Informationsr{\"a}ume\' und \'Workgroup Computing\', die im Kontext der als Integrationsbasis fungierenden Modellverwaltungssysteme umgesetzt werden. Dazu werden die zur d! ynamischen Bauwerksmodellierung erforderlichen Metaebenenfunk! tionalit{\"a}ten sowie Ans{\"a}tze zur Implementierung von Modellverwaltungskernen systematisiert. Ebenso werden notwendige Basistechniken f{\"u}r die Realisierung von MVS untersucht und eine Architektur zur rollenspezifischen Pr{\"a}sentation dynamischer Modellinhalte vorgestellt. Da klassische Schichtenmodelle nicht auf die Verh{\"a}ltnisse in Virtual Enterprises angewendet werden k{\"o}nnen, wird eine physische Systemarchitektur mit einem zentralen Projektserver, Dom{\"a}nenservern und Dom{\"a}nenclients vorgestellt. Ebenso werden Techniken zur Sicherung des autorisierten Zugriffs sowie des Dokumentencharakters beschrieben. Zur Unterst{\"u}tzung der asynchronen Phasen der Kooperation wird der gemeinsame Informationsraum durch Mappingtechniken zur Propagation und Notifikation von {\"A}nderungsdaten bez{\"u}glich relevanter Modellinformationen erg{\"a}nzt. Zur Unterst{\"u}tzung synchroner Phasen werden Techniken zur Schaffung eines gemeinsamen Kontexts durch relaxierte WYSIWIS-Pr{\"a}sentationen auf Basis der Modellinformationen! verbunden mit Telepresence-Techniken vorgestellt. Weiterhin werden Methoden zur Sicherung der Group-Awareness f{\"u}r alle Kooperationsphasen betrachtet.}, subject = {Computer Supported Cooperative Work}, language = {de} } @inproceedings{LaehrBletzinger2004, author = {L{\"a}hr, Andr{\´e} and Bletzinger, Kai-Uwe}, title = {Design of an Analysis Environment for Planning Decision Support}, doi = {10.25643/bauhaus-universitaet.1370}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1370}, year = {2004}, abstract = {In this contribution, the design of an analysis environment is presented, that supports an analyst to come to a decision within a gradual collaborative planning process. An analyst represents a project manager, planner or any other person, involved in the planning process. Today, planning processes are managed by several geographically distributed planners and project managers. Thus, complexity of such a process rises even more. Prediction of consequences of many planning decisions is not possible, in particular since assessment of a planning advance is not trivial. There have to be considered several viewpoints, that depend on individual perceptions. In the following, methods are presented to realize planning decision support.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{PetzoldBartelsDonath2004, author = {Petzold, Frank and Bartels, Heiko and Donath, Dirk}, title = {New techniques in Building Surveying}, doi = {10.25643/bauhaus-universitaet.180}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1803}, year = {2004}, abstract = {Building activities in the construction industry in Germany increasingly concentrate on building measures in or involving the existing built environment. Before planning can begin, buildings must be surveyed in whole or in part with the surveying of geometric data playing a dominant role. The geometric survey is typically undertaken using geodetic or photogrammetric measuring techniques and equipment that have been adapted for use in building surveying. Accordingly appropriate technical knowledge is required in order to be able to operate them as well as a considerable financial investment. Such equipment and surveying methods are usually adaptations from other disciplines. The paper discusses and presents approaches to developing "new" equipment for building surveying, devised with the needs of building surveying in mind - redesigns or new designs for surveying tools. The designs are the result of an inter-disciplinary project between the Faculty of Architecture and the Faculty of Product Design at the Bauhaus Universit{\"a}t Weimar.}, subject = {Architektur}, language = {en} } @inproceedings{HartmannMeissnerRueppel2004, author = {Hartmann, Dietrich and Meißner, Udo F. and Rueppel, Uwe}, title = {Integration of Productmodel Databases into Multi-Agent Systems}, doi = {10.25643/bauhaus-universitaet.141}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1410}, year = {2004}, abstract = {This paper deals with two different agent-based approaches aimed at the incorporation of complex design information into multi-agent planning systems. The first system facilitates collaborative structural design processes, the second one supports fire engineering in buildings. Both approaches are part of two different research projects that belong to the DFG1 priority program 1103 entitled "Network-based Co-operative Planning Processes in Structural Engineering" (DFG 2000). The two approaches provide similar database wrapper agents to integrate relevant design information into two multi-agent systems: Database wrapper agents make the relevant product model data usable for further agents in the multi-agent system, independent on their physical location. Thus, database wrapper agents act as an interface between multi-agent system and heterogeneous database systems. The communication between the database wrapper agents and other requesting agents presumes a common vocabulary: a specific database ontology that maps database related message contents into database objects. Hereby, the software-wrapping technology enables the various design experts to plug in existing database systems and data resources into a specific multi-agent system easily. As a consequence, dynamic changes in the design information of large collaborative engineering projects are adequately supported. The flexible architecture of the database wrapper agent concept is demonstrated by the integration of an XML and a relational database system.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{MeissnerRueppelTheiss2004, author = {Meißner, Udo F. and Rueppel, Uwe and Theiss, Mirko}, title = {Network-Based Fire Engineering Supported by Agents}, doi = {10.25643/bauhaus-universitaet.144}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1447}, year = {2004}, abstract = {Building design in Civil Engineering is characterized by the cooperation of experts in multiple disciplines. Close cooperation of engineers in different fields is the basis of high product quality, short development periods and a minimum of investment costs. For each building the engineers have to create a new fire engineering model. The consistent realization of the fire engineering model in all details has high demands on communication, collaboration and building models. Thereby, to preserve the related design models consistent to each other and compatible with the rules of fire engineering is a complex task. In addition, regulations and guidelines vary according to the building location, so the knowledge base must be integrated dynamically into the planning process. This contribution covers the integration of engineers and design models into a cooperation network on the basis of mobile agents. The distributed models of architectural design, structural planning and fire engineering are supported. These models are implemented as XML-based models which can be accessed by mobile agents for information retrieval and for processing tasks. Agents are provided to all planners, they are enabled to check up the distributed design models with the knowledge base of the fire protection regulations,. With the use of such an agent each planner is supported to check up his planning for accordance with the fire protection requirements. The fire-engineering-agent analyzes the design and detects inconsistencies by processing fire protection requirements and design model facts in a rule-based expert system. The possibility to check the planning information at an early state in the sense of compatibility to the fire protection regulations enables a comprehensive diagnosis of the design and the reduction of planning errors.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{RueppelMeissnerGreb2004, author = {Rueppel, Uwe and Meißner, Udo F. and Greb, Steffen}, title = {A Petri Net based Method for Distributed Process Modelling in Structural Engineering}, doi = {10.25643/bauhaus-universitaet.133}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1338}, year = {2004}, abstract = {The contribution introduces a method for the distributed process modelling in order to support the process orientation in Structural Engineering, i.e., the modelling, analysis and management of planning processes. The approach is based on the Petri Net theory for the modelling of planning processes and workflows in Structural Engineering. Firstly, a central and coarse process model serves as a pre-structuring system for the detailed modelling of the technical planning activities. Secondly, the involved planning participants generate distributed process models with detailed technical workflow information. Finally, these distributed process models will be combined in the central workflow net. The final net is of great importance for the process orientation in Structural Engineering, i.e., the identification, publication, analysis, optimization and finally the management of planning processes.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{PetersenDiaz2004, author = {Petersen, Michael and Diaz, Joaquin}, title = {Integrated planning of buildings based on computer models in project communication systems}, doi = {10.25643/bauhaus-universitaet.176}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1762}, year = {2004}, abstract = {The increasing demands in building and civil engineering - with regard to the growing amount of legal requirements and the needs of a flexible usage of the building - requires an optimisation of all processes during the planning and construction phases. This aim can be only reached by transferring of innovative information and communication technologies in the field of cooperation of all partners in a building project. In this article the enhancement of the existing planning processes based on an improved information management is introduced. Since the late 90ies the availability of hardware and software infrastructures for a networkbased cooperation, e.g. email, in small and middle-sized companies increased the problems of an unstructured communication in the planning and construction processes. These problems have not been solved by the usage of the upcoming project communication systems either, which are often used as a simple medium for data transfer. Because of the easy way of distributing documents to all planning partners a huge amount of files and subsequent versions can be stored so that the planners often have to scope with an information overflow. The underlying hierarchical structures based on simple files stored in tree views are not sufficient for an adequate representation of the different specific views of the planners and the management of relationships between the three information domains building structure, costs and time schedules. ..}, subject = {Architektur}, language = {en} }