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MobileMap uses Check Cruise Rules to generate a check cruise scores at the tree and plot level. Check cruise rules are maintained in the table called Check Rules. Check cruise rules compare values between original cruise plot, tree, or log attributes and the corresponding check cruise (audit) plot, tree, or log attributes. For more information on Check Cruising in general, please see Inventory Management System: Check Cruising . For more information on how to collect check cruise data in the field with MobileMap, please see MobileMap: Check Cruising . For more information on calculating check cruise scores using the Check Cruise Rules created via instructions on this page, see the relevant section in the InventoryManager export documentation here InventoryManager: Export Inventory Data .
When creating Check Cruise Rules, users define a test and assign a deduction to be applied if the test fails. An example is “if the DBH of the measure tree is off by more than 1 inch, then deduct 3 points”. When Check Cruise Rules are violated, the deduction amount is subtracted from the individual tree’s score. The sum of the tree level deductions is then calculated for the plot on which those trees were measured. Finally, a plot level score is calculated using the following equation
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