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A Kiviniemi & J Haymaker

Integration of Multiple Product Models

Abstract: The development of the Industry Foundation Classes (IFC) started from the vision that an integrated building product model would cover all necessary information for a buildings’ entire lifecycle: from requirements management, through different design processes to construction and maintenance processes. Although the IFC model specification covers a substantial part of the required information, AEC projects still have encountered many problems putting this model into practice. AEC professionals still find it difficult to have dynamic, lossless, truly effective data flow amongst the different participants and applications. It is obvious that file based data exchange alone is not a feasible solution - some other solution for integrating project information is necessary. This workshop discusses some viewpoints and potential solutions to the above issues and problems.

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Series: w78:2005 (browse)
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Permission to reproduce these papers has been graciously provided by the Technische Universität Dresden.


Caroline M. Clevenger, John Haymaker

The Impact Of The Operant On Building Energy Simulations

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Series: w78:2006 (browse)
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Forest Flager, John Haymaker

A comparison of multidisciplinary design, analysis and optimization processes in the building construction and aerospace industries

Abstract: Advancement in computer-based product modeling and analysis tools now allows diverse disciplines to simulate product performance in the early stages of Architecture, Engineering and Construction (AEC) projects. How-ever, the capability of this technology to permit AEC professionals to quickly create, represent and rigorously analyze design options from the perspective of multiple disciplines has not been fully realized compared to other industries such as Aerospace. This paper compares Multidisciplinary Design, Analysis (MDA) and Optimization (MDO) processes in the AEC and aerospace industries based upon case data gathered on recent projects in each industry. Case study re-sults are then generalized by industry to highlight the respective strengths and limitations of current practice in each industry to support effective MDA and MDO. Finally, the appropriateness of adapting methods and technology devel-oped in the aerospace on AEC projects is discussed.

Keywords: product modeling, design options analysis

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Series: w78:2007 (browse)
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J Haymaker, C Kam & M Fischer

A methodology to plan, communicate and control multidisciplinary design processes

Abstract: Architecture, Engineering, and Construction (AEC) projects require multidisciplinary solutions. To develop these solutions, AEC professionals need to construct their discipline specific information, but they also need to interrelate and make trade-offs with the information of other disciplines. Today AEC professionals have formal methods to construct much of their single discipline information: however, they lack formal methodologies to plan, communicate and control their multidisciplinary processes. As a result, AEC professionals struggle to design and execute good multidisciplinary solutions. By leveraging existing industry and our own methods and technology, we are designing and implementing such a formal methodology. Using this methodology, AEC professionals will collaboratively and iteratively define their objectives using our POP (Product, Organization, Process) method. They will develop options and analyze them using our Narrative method. They will decide upon options using our Decision Dashboard method. To develop this methodology, we are gathering test cases from ongoing AEC projects, implementing our methodology in the CIFE iRoom, re-enacting these test cases and conducting live charettes with our implemented methodology, and validating the extent to which this methodology enables AEC professionals to better communicate and control their multidisciplinary design processes. The scientific purpose of this research is to better formalize and manage design processes among many AEC professionals and their information. The practical purpose of this methodology is to enable AEC professionals to improve their multidisciplinary designs.

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J Haymaker, M Fischer, K Burke & William McDonough

Tools to Signal C2C Design Intention

Abstract: In this paper, we present a vision and requirements for how IT can support sustainable design and construction in the AEC Industry. We illustrate our vision with examples from a project designed by William McDonough Partners, a leader in the field of the design of sustainable building. As part of the design process, designers develop a multi-disciplinary design narrative that captures the essence of the design and the designers' intentions. However, today's IT does not support designers in developing and maintaining this narrative with the flexibility and integration required. We discuss the extent to which existing IT approaches address the requirements for design tools, and introduce the Perspective Approach as a way forward to address these requirements, applying the Perspective Approach to the examples. The Perspective Approach builds on project modeling approaches to enable engineers to establish the relationships of their information to the information produced by other engineers. In this way, an integrated project model is not prescribed by an a priori defined project modeling schema that has been implemented by software programmers, but emerges as the design evolves in response to project-specific challenges and opportunities. The Perspective Approach is our first attempt at developing a method to enable engineers to document, communicate, and explore the multi-disciplinary design narratives necessary for the design of sustainable buildings.

Keywords: Design Requirements, Sustainable design

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Series: w78:2004 (browse)
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J Haymaker

Formalizing and managing the dependencies between models

Abstract: AEC professionals need information models that are structured for their specific tasks. They also need to be able to control the integration of these models with the models of other professionals. In this paper I propose methods for formalizing and managing the dependencies between information models. Using these methods, an AEC professional constructs an information model, called a Perspective, and specifies the sources and nature of its dependency on other Perspectives. He specifies the nature of the dependency using a reasoning algorithm called a Perspector that describes the automated or manual reasoning needed to construct the dependent Perspective from its source Perspectives. He uses Management Processes to control the integration of the dependent Perspective as its source Perspectives are iteratively modified. AEC professionals apply this method repeatedly and collaboratively to compose and control directed acyclic graphs of Perspectives and their dependencies, called Narratives. Narratives provide a simple, formal, visual, flexible, distributed, yet collaborative way to construct and control the integration of multiple task-specific Perspectives. They are intended to help AEC professionals communicate, integrate, and automate multidisciplinary design processes and the information models used in these processes.

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Mauricio Toledo, Martin Fischer, John Haymaker, John Kunz, Marc Ramsey and Ben Suter

A Case Study In Integrated Product, Process, And Organization Modeling In Early Stages Of Sustainable Design

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R.R. Senescu & J.R. Haymaker

Specifications for a Social and Technical Environment for Improving Design Process Communication

Abstract: The architecture, engineering, and construction (AEC) industry can generate tremendous value by improving design processes. Observed case studies and design literature suggest that processes can improve through collaboration, sharing and understanding (defined here as Design Process Communication). Industry has not widely adopted process communication techniques, though other research fields provide points of departure for promoting better communication. Organization Science studies how institutions exchange information and knowledge. Human Computer Interaction, informed by Cognitive Science, explains how computers can aid and supplement human’s ability to find and manage information. Process Modeling research shows how to best represent design processes. The paper links this research to develop a specification for a social and technological environment - a Design Process Communication Methodology. The environment is computable, distributed, embedded, modular, personalized, scalable, shared, social, transparent, and usable. The Methodology lays the foundation for improving building design process efficiency and effectiveness from concept to construction documentation.

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Series: w78:2009 (browse)
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