Hi,
There are 3 types of views in IFS Application
Base:
Usually, the base view is the view that fetches all the columns. If we have a table ABC_TAB, then the base view will be ABC. The base view doesn't have any conditions it is just select data from the table.
Report:
These views are connected to reports in the IFS Application. Any view created using a table or joining table and views with the name like _REP will be a report type of view.
Alternative:
Views created by adding new columns, conditions or joining multiple tables/views will put into this category. Custom field views _CVFand other views ending with _UIV, _PUB, _BI, _LOV, _LIST, etc; will be considered as an alternative view. Becuase these views are usually created to achieving specific functionalities.