Abstract
As engineers design, plan, and execute architecture, engineering, and construction (AEC) projects, they construct task-specific views. These views contain information that is structured for their specific tasks. Engineers generally construct these views based on information contained in other engineers' views. Traditionally, engineers have manually constructed these views using pencils and more recently with computational tools like computer-aided drafting (CAD). Manually constructing and integrating views is often difficult, time-consuming, and error-prone. Newer project model approaches attempt to predetermine and automatically construct many useful task-specific views but these approaches are proving difficult to implement due to the multidisciplinary, constructive, iterative, and unique character of AEC projects. Current project modeling approaches lack adequately simple, formal, generic, expressive methods that engineers can use to automatically construct a new dependent view from information in one or many source views. In this paper, we formalize reusable reasoning modules, called Perspectors, which engineers can use to automatically construct a task-specific engineering view, called a Perspective, from other Perspectives. We motivate and retrospectively validate this approach using engineering test cases from the design and construction of the Walt Disney Concert Hall. Through implementation of a prototype, we give empirical evidence that engineers can select from a potentially small number of pre-defined, reusable, geometric Perspectors, or program new Perspectors, and easily compose them into directed graph structures, called Narratives, to construct and control the integration of useful dependent geometric Perspectives more quickly and accurately than current practice and theory allows. Perspectors are intended to enable engineers from multiple disciplines to engage in novel, automated, and integrated design and analysis by easily yet formally constructing and integrating Perspectives from other Perspectives.
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