Primitive‐Composite Approach for Structural Data Modeling

Howard, H. Craig; Abdalla, Jamal A.; Phan, Doantam

doi:10.1061/(asce)0887-3801(1992)6:1(19)

Cited by 34 publications

(7 citation statements)

References 11 publications

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“…Howard et al 17 use the analogy of human language, defining a methodology for creating and applying a data "vocabulary" for a domain. However, words are often ambiguous; it is only when words are formed into complete sentences and put into a context that clear communication can be established.…”

Section: Data Exchange or Information Representation?mentioning

confidence: 99%

“…Howard et al 17 summarize the view held by many reseachers in this domain that the problems of data modeling for construction are due to the facts that 1. Engineering design objects are complex and generally related to each other in different ways through intricate relationships.…”

Section: Data Modeling For Constructionmentioning

confidence: 99%

“…Although many researchers have offered advice on preferred modeling styles, including Augenbroe, 2 Bjork,4,5 Eastman, 13,14 Froese, 15 Howard et al, 17 Luiten,39,40 Turner, 45 and West, 47 we are still lacking a well-established modeling methodology that meets the needs of a team of top-down modelers and bottom-up implementors.…”

Section: Remaining Problemsmentioning

confidence: 99%

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Representing Engineering Information for Constructional Steelwork

Crowley

Watson

1997

Computer aided Civil Eng

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This paper examines the concept of data representation in the construction industry. It is concerned with the formal representation of engineering information to facilitate a more integrated and effective approach to construction. It considers the need for change, describes some of the concepts and methodologies employed in the development of product models, and considers the relevance of ISO/STEP to construction.This paper discusses two techniques in particular-IDEF1X (a graphic modeling language) and EXPRESS (now an International Standard)-emphasizing their relative strengths and weaknesses. The authors suggest approaches to translation between the two languages, highlighting the problems arising from differences in functionality.This paper is based on the authors' experience during the development and implementation of the CIMsteel Logical Product Model (LPM). The LPM is a product model for structural steelwork building frames, currently covering the design stage of the life cycle.

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Section: Data Exchange or Information Representation?mentioning

confidence: 99%

Section: Data Modeling For Constructionmentioning

confidence: 99%

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Representing Engineering Information for Constructional Steelwork

Crowley

Watson

1997

Computer aided Civil Eng

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“…The large number of and variation in computer environments, however, is a significant problem (Howard et al 1992). There is no common language for the exchange of messages through computer environments.…”

Section: Introductionmentioning

confidence: 99%

Data flow model for communications between project participants in a highway bridge project

Abou‐Zeid¹,

Russell²,

Hanna³

et al. 1995

Can. J. Civ. Eng.

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The construction industry is highly fragmented. A large number of diverse organizations participate in the planning, design, and construction of each constructed project. Cooperation between project participants necessitates the transfer of large quantities of project information. Communication, in many forms, is the means for data exchange among participants. Availability and timeliness of the data needed to perform different project tasks may decrease the potential for project delay(s) and rework, thus increase productivity. This paper discusses the use of the "structured analysis" methodology to document the communication process. The paper also discusses the use of a shared-data resource to solve some of the communication and standardization problems in the construction industry. An overview of the structured analysis methodology is provided. Data flow diagrams, a data dictionary, and transform descriptions comprise the tools for implementing structured analysis. Each tool is briefly described with emphasis given to data flow diagrams. Portions of the communication process documented for a highway bridge project administered by Wisconsin Department of Transportation are provided as an example to illustrate the use of data flow diagrams for information flow identification. The example also presents the use of the data dictionary as a supplementary document to provide composition and definition of data elements. Selected communication difficulties among project participants as well as potential areas of modifications and (or) automation in the current system are highlighted. This paper provides a framework for tracking and documenting the information flow between project participants. R6sum6 : L'industrie de la construction est trks fragmentCe. Un grand nombre d'organismes participent i la planification, la conception et la realisation de chaque projet. La coopCration entre les participants exige le transfert d'importantes quantitCs d'informations inhCrentes B ces projets. La communication sous de nombreuses formes constitue le moyen d'tchanger des donnCes. L'accessibilitC et le degrC d'actualiti des donnCes ntcessaires B I'exCcution des diverses tdches peuvent rCduire les risques de retard et de reprise des travaux, et par consequent accroi'tre la productivitC. Cet article traite de l'utilisation de la mCthode a d'analyse structurCe pour Ctoffer le processus de communication. I1 est Cgalement question de l'utilisation d'une base de donnCes commune pour rCsoudre certains problkmes de communication et de normalisation propres i I'industrie de la construction. Une vue d'ensemble de la mCthode d'analyse structurCe est presentee. Les organigrammes de donnCes, les repertoires de donnCes et les descriptions de transformations constituent les outils de mise en oeuvre de I'analyse structurCe. Chaque outil est dCcrit brikvement mais une importance particulikre est accordCe aux organigrammes de donnCes. Des parties du processus de communication ClaborC dans le cadre d'un projet de pont routier administre par le Wisconsin...

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“…However, it is not clear who produces this initial model and how the elements of that model can always form part of other disciplines' models. Howard et al 20 put forward a data model using the primitive-composite approach. Multiple abstractions are formed much in the same way as views are formed in database management systems.…”

Section: Representing Multiple Modelsmentioning

confidence: 99%