| 摘要 |
Systems and methods for construction planning, including the take-off process, estimating, specification and merchandising of resources used in construction projects, are disclosed. In one embodiment, an object class for each of a plurality of resources is created. Resources are the materials, equipment and labor that are required to complete a construction project. Each object class represents an absolute property of each resource. One or more specification classes for each resource are also created, wherein the specification classes represent discretionary properties of each resource. Each specification class is associated with a corresponding object class for each resource. A take-off of the plurality of resources is estimated based on the object class of each resource in combination with a selected specification class associated with an object class for each resource. Alternative take-offs of the plurality of resources may be estimated based on alternate specification classes in combination with the object class of each resource.
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