Sewall's proprietary Timber Inventory System (TIS) provides for easy upload of processed field data directly into webFRIS. Using the TIS, a user can upload field data, make any changes to the tree or plot level data, process field data into stand level volumes, evaluate the results through customized reports, and the upload those volumes directly into the webFRIS database. The interaction between the TIS and webFRIS ensures timely access to accurate inventory data.

The TIS also allows users to implement sophisticated growth and yield models to project inventory for years into the future. What if scenarios using various parameters can easily be conducted. Desired outcomes can then be uploaded directly into the stand table in webFRIS.

Additionally the TIS becomes the authoritative storage warehouse for tree and plot level data. Adjustments can be made and uploaded directly into webFRIS at any time.