3 Creating a Project

3.1 Importing an .exf File


There are several different methods for creating and configuring a project in SOT v3. A SOT v3 project can be created by importing an initial schedule and all of its relevant information from either an Enhanced Production Scheduler (EPS) .exf file, a Deswik Scheduler project or a Maptek Vulcan Gantt Scheduler (VGS) project. When SOT v3 projects are created from any of these, the activities, production fields, text fields, dependency links, dependency types, constraint dates and start dates are all imported. SOT v3 stores this information so that it may be used to set up the objectives and constraints required for generating and reporting on optimized long-term mine schedules.

All activities and all dependencies are imported when a SOT v3 project is created. Dependency types ‘Finish-Start’, ‘Finish-Finish’, ‘Start-Start’, ‘Start-Finish’, and ‘Percent Overlap’ are all supported by SOT v3. SOT v3 honours the constraint date type ‘Must Start On’; this is accomplished through pinning the activity. Pinning an activity will lock the activity to its ‘Constraint’ date that was imported when the SOT v3 project was created. Note that when an activity is pinned, all of the activity’s predecessors are also locked to their imported ‘Start’ dates. Pinned activities are handled differently than other activities when constructing schedules in SOT v3 and are permitted to exceed the Capacity Constraints that may have been defined to generate schedules. Using ‘Must Start On’ constraint date types is one of three methods for pinning activities. To set pinned activities in SOT using one of the other two methods, refer to Section 6.3.4. ‘Start No Earlier Than’ constraint types are enforced by SOT v3 according to the Constraint date imported for the activity.

Must Start On’ constraint date types may not be the most convenient method for pinning activities as the setting cannot be turned off or altered from within a SOT v3 project.

SOT has a user-configured feature known as ‘Sliding’ which behaves similar to, and overrides, the imported ‘As Soon As Possible’ and ‘As Late As Possible’ constraint date types.

When an activity has a ‘Finish No Later Than’ constraint date type, this will not necessarily be honoured, but if the ‘Finish No Later Than’ constraint date is violated, a warning will be issued.

Constraint date types ‘Must Finish On’, ‘Start No Later Than’, and ‘Delay Date’ are not honoured by SOT.


3.1 Importing an .exf File

To create a SOT v3 project by importing an .exf file,

  1. In the main SOT window, click the file select button.

  2. Select from the file explorer the desired .exf file; click Open.
  3. Click the Import button.

  4. The import will begin and will be reflected in the Import window status bars.

  5. When the project is fully imported, the Existing Projects window will list the project name, the name of the imported .exf file, the imported schedule start date, and the date the project was imported.

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