GauVendi differentiates between 3 types of room products: 

1) RFCs - Detailed Room Inventory

2) ERFCs - Virtual Room Products

3) MRFCs - Standardized Room Products

ERFCs are virtual room products allowing to sell the same physical rooms in various combinations. There are two main types of ERCs. 

a) Allocation Type: "All"; selling a room combination as whole. For example 2 rooms next to each other as a family combination etc.

b) Allocation Type:"Deduct"; selling the assigned rooms individually with assigned features

For each ERFC a set of features can be selected. The pricing of the ERFCs can arrive from the daily feature prices or through automated pricing arrive from the initial RFC pricing.