Product Factory Groups
Product Factory groups are defined here. Generally groups are used in a product factory / rating engine to group values in categories which attract the same rating factor.
Some commercial lines policies insure collections of risk and only summary information is required by the underwriting / rating engine. In this situation questions may only be asked at the group level, e.g. total number of vehicles used for business. In this scenario using group definitions as part of the product definition will mean collection and rating becomes simpler since only aggregated data is caught and passed through to the rating engine.