Knowledge-based interpretation of architectural drawings

Cherneff, J M (1990) Knowledge-based interpretation of architectural drawings. PhD thesis, Massachusetts Institute of Technology, USA.

Abstract

Architectural schematic drawings have been used to communicate building designs for centuries. The symbolic language used in these drawings efficiently represents much of the intricacy of the building process (e. g. implied business relationships, common building practice, and properties of construction materials). The drawing language is an accepted standard representation for building design, something that modern data languages have failed to achieve. In fact, the lack of an accepted standard electronic representation has hampered efforts at computer intergration and perhaps worsened industry fragmentation. In general, drawings must be interpreted, by a professional, and then reentered in order to transfer them from one CAD system to another. This work develops a method for machine interpretation of architectural (or other) schematic drawings. The central problem is to build an efficient drawing parser (i. e. a program that identifies the semantic entitites, characteristics, and relationships that are represented in the drawing). The parser is built from specifications of the drawing grammar and an underlying spatial model. The grammar describes what to look for, and the spatial model enables the parser to find it quickly. Coupled with existing optical recognition technology, this technique enables the use of drawings directly as: (1) a database to drive various AEC applications, (2) a communication protocol to integrate CAD systems, (3) a traditional user interface.

Item Type: Thesis (Doctoral)
Thesis advisor: Logcher, R D
Uncontrolled Keywords: CAD systems; building design; building process; communication; fragmentation; professional
Index terms: fragmentation, database, building process, program, construction material, building practice, specification, business relationship, user interface, drawing, building design
Subjects: technical documentation, data management, building construction, strategic management, business, software systems, contractual condition, building materials, human-computer interaction, architectural design
Topics: Organizational Design, Business Strategy, Contract Administration, Digital Applications, Site Management, Construction Technology, Engineering Principles, Design Practice
Descriptive scope: 2 PC

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