Hendrickson, C; Martinelli, D and Rehak, D (1987) Hierarchical rule-based activity duration estimation. Journal of Construction Engineering and Management, 113(2), pp. 288-301. ISSN 0733-9364
Abstract
Activity durations are often estimated by modifying standard work productivities for specific site and job characteristics. Modifications are typically developed from engineering judgment and past experience. In this paper, an explicit hierarchical rule-based framework for making such modifications is investigated. By explicitly formulating estimation rules, the factors felt to influence work productivity can be identified and the accuracy of particular modification rules assessed. Alternative estimation methods such as statistical techniques and a hybrid rule-and-statistical framework are discussed. A prototype expert system for masonry construction duration estimation, MASON, is described and used to illustrate the rule-based estimation approach. Facilities in MASON for explanation and productivity improvement analysis are also described.
| Item Type: | Article |
|---|---|
| Index terms: | productivity, estimation, expert system, accuracy, duration, mason, prototype, judgment |
| Subjects: | professional development, management, data management, financial and cost management, dispute resolution, modelling and simulation, practitioner, project controls |
| Topics: | Time Control, Legal Issues, Cost Management, Business Strategy, Information Management, Roles and Professions, Engineering Principles, Digital Applications |
| Descriptive scope: | 2 PC |
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