This page provides an overview of key input and output data. Here you can make changes to the data and save a new Scenario for later comparison.
In the other pages under the Analytics heading, you can see more details of both the input and the output.
Active Scenario Resource Control¶
This table lists all available resources in the current model:
Resources marked in the column Remain Open will stay open, and incur fixed costs, regardless of whether they are used by the model solution.
Resources marked in the column Remain Close won’t be included in the model solution.
After you click Optimize (AIMMS icon), a check mark in the column Open indicates if a resource is open based on the model solution.
The menu in the top right corner allows you to easily set Remain Open or Remain Closed:
- Set Remain Open for all: selects all resources to Remain Open
- Set Remain Open for none: deselects all resources to Remain Open
- Set Remain Closed for all: selects all resources to Remain Closed
- Set Remain Closed for none: deselects all resources to Remain Closed
If you select Remain Open, Remain Closed will be turned off and vice versa.
Active Model Control¶
Here you can control settings for the model that needs to be solved by setting some criteria for constraints. You can adjust the Minimum number of DCs/Productions and Maximum number of DCs/Productions to influence the solution.
If you want to solve the model so that it keeps all resources open, you can set the Minimum number of DCs/Productions and Maximum number of DCs/Productions to the actual number of DCs/Production facilities. The solution will keep all resources open.
If you want the optimal solution, without any preference for how many or few resources will be used, set Minimum number of DCs/Productions to 0 and the Maximum number of DCs/Productions to a value larger than the number of resources. This gives the model full freedom to decide which resources to close and which to keep open.
Other controls let you turn off or relax certain constraints, thereby providing more flexibility in the solution.
- Relax DC/Production Capacity: This removes the DC/Production capacity constraints, and allows you to see the solution if all DCs/production facilities had unlimited capacity. The DCs/production facilities that are above their original capacity in this solution, often provide guidance on where there is most room for improvement.
- Relax Lead Time: This removes the lead time constraints from the model. It allows you to see how this constraint impacts your solution, if at all.
- Relax Supply Capacity: This removes the supply capacity constraints. It will not change the products that a supplier can supply, but it will allow the model to provide an unlimited amount of that product. It allows you to see the impact of your suppliers on your network.
- Relax Transport Capacity: This removes transportation capacity constraints. It will not change the lanes that are available, but it will not enforce any capacity on those lanes.
- Disable Resource Expansion: This disallows resources (both DCs and production facilities) to use expanded capacity. It allows you to see whether the model can be solved given the available capacity (without expanding).
- Relax Single Source: This removes the single source constraints. It will allow the model more flexibility in serving the customers.
Of course, the mathematical optimal isn’t always practical, so you will have to make some choices based on your knowledge of your business. However, giving the model a full range can help by giving you insights that you might not otherwise get.
Here you can control the Time limit and see the Optimality Gap. See Time Limit for details.
This widget shows the average speed by Transportation Type. This speed is used in the calculation of the Lead Time as well as the Driving Time distribution. See Customers.
Network Design has the ability to compare two scenarios, to better understand the difference between them. Scenarios used here are created on the Scenario page.
You can show scenarios created by yourself as well as scenarios created by your colleagues (that were made available to you).
Use Select Saved Scenario to select an existing scenario. Then you see the data of that scenario in Reference Scenario Resource Control and Reference Model Control.
These widgets allow for easy comparison between the current solution (top part of the screen) and the reference scenario (bottom part of the screen).