InfoAsset Planner's inference tool is a set inference tools that you can apply in order to fill in missing data.

The Inference tool is located in the Toolbox tab of the Operation Center.  Right-click on  to create a new inference.  After giving your inference a unique ID and description, the Inference interface will open.

When an inference operation is selected, a description of the operation will appear as well as inference parameters unique to each type of inference operation.