@inproceedings{ElRayesKandil2004,
  author    = {El-Rayes, Khaled and Kandil, Amr},
  title     = {Distributed Computing for the Optimization of Large-Scale Construction Projects},
  doi       = {10.25643/bauhaus-universitaet.160},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1601},
  year      = {2004},
  abstract  = {Available construction time-cost trade-off analysis models can be used to generate trade-offs between these two important objectives, however, their application is limited in large-scale construction projects due to their impractical computational requirements. This paper presents the development of a scalable and multi-objective genetic algorithm that provides the capability of simultaneously optimizing construction time and cost large-scale construction projects. The genetic algorithm was implemented in a distributed computing environment that utilizes a recent standard for parallel and distributed programming called the message passing interface (MPI). The performance of the model is evaluated using a set of measures of performance and the results demonstrate the capability of the present model in significantly reducing the computational time required to optimize large-scale construction projects.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{RueppelKlauer2004,
  author    = {Rueppel, Uwe and Klauer, Thomas},
  title     = {Internet-based Workflow-Management for Civil Engineering Projects},
  doi       = {10.25643/bauhaus-universitaet.164},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1647},
  year      = {2004},
  abstract  = {The growing competition pressure in the building industry increases the demands on the design and construction processes in respect to economical, technical and time aspects. These demands require efficient improvements of the value-added chain, which can be realized mainly with the usage of innovative information- and communication-technologies. To support the collaboration of all participants involved in a certain building project the Workflow-Management-System "BauKom-Online" has been developed. In the focus of the system is to support the coordination of the participants and their information exchange. Such a software-method is well suited to ensure a high quality planning process. The modelling of business-processes enables a better self-comprehension of the participants work and helps to enhance the project performance. The system architecture of BauKom-Online contains two basic components: the processmodelling tool and the workflow-engine. The process-model contains of activities and states of the planning and construction processes and their relations. These connected processes compose the workflow. Such a process-model for engineering purposes has to satisfy several needs, e.g., the consideration of planning and building alternatives, dynamic changes of the model during execution of the project and the linkage to further technical objects like costs, building structure, specifications and documentmanagement. Furthermore, the scheduling of the project can be done within the process-model and can be visualized as a Gantt-diagram. ...},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{RueppelGutzke2004,
  author    = {Rueppel, Uwe and Gutzke, Thomas},
  title     = {Groundwater-Monitoring based on dynamic co-operative eGovernment-Processes},
  doi       = {10.25643/bauhaus-universitaet.161},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1611},
  year      = {2004},
  abstract  = {As a result of the pilot-project "Grundwasser-Online" the supervision and the active controlling of large monitoring- and catchment-areas are realised by a co-operative integration of all related institutions, a synchronisation-process to combine all distributed data into one central server database, and a high-level eGovernment-Service to provide evaluated information over the internet. Based on this software system the local authorities are able to supervise the groundwater-levels and to find adequate decisions, which finally result in official permissions for the usage of groundwater-reservoirs by the water supply companies.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{FreundtBeucke2004,
  author    = {Freundt, Martin and Beucke, Karl},
  title     = {A flexible model for scheduling building processes based on graph theory and fuzzy numbers},
  doi       = {10.25643/bauhaus-universitaet.158},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1587},
  year      = {2004},
  abstract  = {The methods currently used for scheduling building processes have some major advantages as well as disadvantages. The main advantages are the arrangement of the tasks of a project in a clear, easily readable form and the calculation of valuable information like critical paths. The main disadvantage on the other hand is the inflexibility of the model caused by the modeling paradigms. Small changes of the modeled information strongly influence the whole model and lead to the need to change many more details in the plan. In this article an approach is introduced allowing the creation of more flexible schedules. It aims towards a more robust model that lowers the need to change more than a few information while being able to calculate the important propositions of the known models and leading to further valuable conclusions.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{PerevalovaPahl2004,
  author    = {Perevalova, Julia and Pahl, Peter Jan},
  title     = {Structural and Functional Dependence of Objects in Data Bases},
  doi       = {10.25643/bauhaus-universitaet.168},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1683},
  year      = {2004},
  abstract  = {Let the information of a civil engineering application be decomposed into objects of a given set of classes. Then the set of objects forms the data base of the application. The objects contain attributes and methods. Properties of the objects are stored in the attributes. Algorithms which the objects perform are implemented in the methods of the objects. If objects are modified by a user, the consistency of data in the base is destroyed. The data base must be modified in an update to restore its consistency. The sequence of the update operations is not arbitrary, but is governed by dependence between the objects. The situation can be described mathematically with graph theory. The available algorithms for the determination of the update sequence are not suitable when the data base is large. A new update algorithm for large data bases has been developed and is presented in this paper.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{ZarliStorerKazi2004,
  author    = {Zarli, Alain and Storer, Graham and Kazi, Abdul Samad (Sami)},
  title     = {Building a Better Future: Major Results from the ICCI Cluster Project},
  doi       = {10.25643/bauhaus-universitaet.199},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1994},
  year      = {2004},
  abstract  = {To support research in the building sector and in order to help it move towards a new digital economy, the European Commission under the 5th Framework initiative, especially the IST programme, funded various RTD projects. The opportunity to bring these IST projects together was acknowledged so that stronger links can be created under a clustering umbrella and that, moreover, links of those projects with their RTD environment could be facilitated. This has been the objective of work carried out within the ICCI (IST-2001-33022) Cluster project. This paper introduces the main aims and objectives of the project, and then presents its principal outcomes. In a second part, it synthesises the underlying concepts, technology and tools that will make ICT-based Construction a reality in a near future, and gives recommended actions for the industry, the EC and the Construction ICT R\&D in Europe, giving some benefit of this project experience to the three communities.},
  subject      = {Forschung},
  language  = {en}
}
@article{BargstaedtBlickling2004,
  author    = {Bargst{\"a}dt, Hans-Joachim and Blickling, Arno},
  title     = {Effective cost estimate and construction processes with 3D interactive technologies: Towards a virtual world of construction sites},
  doi       = {10.25643/bauhaus-universitaet.232},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2320},
  year      = {2004},
  abstract  = {The development of 3D technologies during the last decades in many different areas, leads us towards the complete 3D representation of planet earth on a high level of detail. On the lowest level we have geographical information systems (GIS) representing the outer layer of our planet as a 3D model. In the meantime these systems do not only give a geographical model but also present additional information like ownership, infrastructure and others that might be of interest for the construction business. In future these systems will serve as basis for virtual environments for planning and simulation of construction sites. In addition to this work is done on the integration of GIS systems with 3D city models in the area of urban planning and thus integration of different levels of detail. This article presents research work on the use of 3D models in construction on the next level of detail below the level of urban planning. The 3D city model is taken as basis for the 3D model of the construction site. In this virtual nD-world a contractor can organize and plan his resources, simulate different variants of construction processes and thus find out the most effective solution for the consideration of costs and time. On the basis of former researches the authors present a new approach for cost estimation and simulation using development technologies from game software.},
  subject      = {Produktmodell},
  language  = {en}
}
@article{BargstaedtBlicklingKath2004,
  author    = {Bargst{\"a}dt, Hans-Joachim and Blickling, Arno and Kath, Thilo},
  title     = {Optimierung der Planung von Baustelleneinrichtungen mit 3-D-Technologien},
  series = {Hoch- und Tiefbau 1/2-2004, S. 24-27},
  journal   = {Hoch- und Tiefbau 1/2-2004, S. 24-27},
  doi       = {10.25643/bauhaus-universitaet.559},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5599},
  year      = {2004},
  abstract  = {Der Einsatz von CAD-Applikationen hat die Planungsarbeit im Bauwesen entscheidend ver{\"a}ndert. In der Entwurfsplanung sind die {\"A}nderungen bereits deutlich erkennbar. Seit der Anwendung von dreidimensionalen Planungswerkzeugen kann der Bauherr das Bauwerk in seiner virtuellen Gesamtheit am Computer betrachten und bewerten. Dies bietet viele Vorteile. So ist der Planer gezwungen alle wesentlichen Details a priori exakt zu planen, wodurch viele Fehler vermieden werden k{\"o}nnen. Dies bietet insbesondere f{\"u}r Planungen in Baubetrieben, z.B. im Rahmen der Arbeitsvorbereitung, neue Einsatzm{\"o}glichkeiten.},
  subject      = {Weimar / Bauhaus-Universit{\"a}t / Professur Baubetrieb und Bauverfahren},
  language  = {de}
}
@inproceedings{KopytoPetersenDiaz2004,
  author    = {Kopyto, Martin and Petersen, Michael and Diaz, Joaquin},
  title     = {Cost and Schedule Controlling in Relation to Liquidity Management during Construction Projects},
  doi       = {10.25643/bauhaus-universitaet.159},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1599},
  year      = {2004},
  abstract  = {The present paper describes a software application which can be used for relating the scheduled events of a construction project with the respective financial parameters, leading to an overall improvement in general controlling and liquidity management. For this purpose, existing construction schedules are taken and details of the assignment are recorded. Thus it becomes possible to assess a future payment status should changes in the designated schedule occur.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{MuellerKirschkeKoecheretal.2003,
  author    = {M{\"u}ller, Jens and Kirschke, Heiko and K{\"o}cher, J{\"u}rgen and Petter, Steffen},
  title     = {Untersuchung und Erarbeitung eines Leitfadens zum Dokumentenmanagement in KMU des Bauwesens},
  doi       = {10.25643/bauhaus-universitaet.336},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3367},
  year      = {2003},
  abstract  = {In der heutigen Informationsgesellschaft sind alle Gesch{\"a}ftsprozesse in einem Unternehmen gepr{\"a}gt durch die Verwendung der vorhandenen Informations- und Kommunikationstechnologien. Diese haben zur Folge, dass Unternehmen mit einer wahren Flut an Informationen konfrontiert werden, die von extern und intern in das Unternehmen eingetragen wurden. Die erfolgreiche Beherrschung dieser Informationsflut bildet die Basis f{\"u}r das effektive Arbeiten im Unternehmen. Grundvoraussetzung hierf{\"u}r ist vor allem ein harmonisches Zusammenspiel zwischen Mensch \&\#8596; Organisation \&\#8596; Technik. Dokumentenmanagementsysteme haben sich zur Aufgabe gemacht, den Anwender bei der technologischen Bew{\"a}ltigung dieser Aufgabenstellung zu unterst{\"u}tzen. Der hier vorgestellte Artikel zeigt die Probleme auf, die w{\"a}hrend der Umsetzung eines Dokumentenmanagementsystems auftreten k{\"o}nnen und konzentriert sich dabei besonders auf Kleinen und Mittleren Unternehmen (KMU) im Bauwesen. Charakteristisch f{\"u}r diese ist die Schw{\"a}che die eigenen Unternehmensstrukturen betriebswirtschaftlich aufzubereiten, woraus sp{\"a}ter bei einer technologischen Umsetzung schwerwiegende Probleme resultieren. Genau an diesem Punkt setzt der vorgestellte Artikel an und versucht den Zusammenhang zwischen Organisation und Technik herauszuarbeiten, um darauf aufsetzend einen allgemeing{\"u}ltigen Ansatz f{\"u}r die Umsetzung eines Dokumentenmanagementsystems zu liefern.},
  subject      = {Baubetrieb},
  language  = {de}
}