An asset class groups assets that are alike in nature and use. In accounting, classes such as "Motor vehicles" or "Computer equipment" typically share a depreciation method and useful life. Operationally, categories decide which fields you capture (a vehicle needs a registration number; a laptop needs a serial and OS) and which rules apply (which zones it may be in, whether it needs calibration).
Why it matters
Setting defaults per class keeps the register consistent and saves re-entering the same values for every asset. It also makes reports meaningful — total NBV of vehicles, audit results for IT.
In Asetavo
Categories carry their own custom fields and depreciation defaults — cost, salvage value, useful life — applied consistently to every asset in the category.