Assets in Portfolio Items
An asset corresponds to a portfolio item whose nature has the management constraint: Unique asset tag ( Management constraint). The Unique-asset-tag management constraint means an asset will be managed individually (individual management).
In the database, an asset is represented by a record in the Assets table and a record in the Portfolio items table.
Other than the General, Portfolio and Project domains of Assets, the Assets table concern different domains of tracking:
3) Fixed assets
2) Maint. (maintenance)