Options for an Operation

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mBOM Authoring Options for an Operation

 

 

Figure 1:  mBOM authoring options with an operation selected
Figure 1:  mBOM authoring options with an operation selected

 

 

 

1. Header Tab

 

Allows users to edit Name, Description, Quantity, and Effectivity dates.
Users can also select the line side of the activity as Left, Right, or Either.
The user can map a Boundary to an operation. This can be done by clicking on the Attach button. A form with the a list of plants and their corresponding boundaries will show up. The user then just needs to select the required boundary.

 

 

2. Time Tab

 

The Time tab displays the different times for each activity under the selected operation.
The Time tab provides information about Observed Time, Calculated Time, Estimated Time, Set up Time, % Value addition & frequency.
The user can only specify Estimated Time and Set up Time, the other two are calculated through specific controls.
The user can specify the frequency per cycle of an activity along with the percentage of value addition.
The “RollUp Type” should be set on Graph for most calculations. A detailed explanation of the same is discussed in the activities section.

 

3 Gantt Chart Editor Tab

 

The Gantt chart editor is used to specify the sequence in which the activities are to be performed.
By clicking the default button activities are arranged in sequence.
The sequence can be altered by changing the values of ‘From Node’, ‘To Node’, Delay Type, Delay Time, Add Arc & Delete Arc.

 

       E.g. in the Gantt chart below, the sequence of activities is:

 

Figure 2:  Gantt Chart
Figure 2:  Gantt Chart

Figure 3:  Precedence diagram 1
Figure 3:  Precedence diagram 1

In order to define activity A2 parallel to A3, the user would have to delete arc A2 to A3 and add an arc from A1 to A3.

 

Figure 4:  Precedence diagram 2
Figure 4:  Precedence diagram 2

 

a)Click on the arc A2 to A3.
b) Click on the Delete Arc button.
c)Select activity A1 form the “From Node” drop down menu and activity A3 from the “To Node” drop down.
d) The Arcs list would now have changed.

 

 

Figure 5:  Task list
Figure 5:  Task list

 

               The Gantt chart below now shows the two activities in parallel.

 

 

Figure 6:  Gantt chart with activities in parallel
Figure 6:  Gantt chart with activities in parallel

 

 

 

 

4 History Tab

 

The history tracking feature allows the user to enter details about changes made to the process and maintain a log of all changes and modifications made to the process.