The IfcTaskTypeEnum defines the range of different types of task that can be specified.
HISTORY New type in IFC4
Enumeration definition
| Constant | Description |
|---|---|
| ATTENDANCE | Attendance or waiting on other things happening. |
| CONSTRUCTION | Constructing or building something. |
| DEMOLITION | Demolishing or breaking down something. |
| DISMANTLE | Taking something apart carefully so that it can be recycled or reused. |
| DISPOSAL | Disposing or getting rid of something. |
| INSTALLATION | Installing something (equivalent to construction but more commonly used for engineering tasks). |
| LOGISTIC | Transporation or delivery of something. |
| MAINTENANCE | Keeping something in good working order. |
| MOVE | Moving things from one place to another. |
| OPERATION | A procedure undertaken to start up the operation an artifact. |
| REMOVAL | Removal of an item from use and taking it from its place of use. |
| RENOVATION | Bringing something to an ‘as-new‘ state. |
| USERDEFINED | |
| NOTDEFINED |
原文：https://www.cnblogs.com/herd/p/12656040.html