Sui generis
A similar case that led to the use of the label "sui generis" is the relationship of New Caledonia relative to France, because the legal status of New Caledonia can aptly be said to lie somewhere between a French overseas collectivity and a sovereign nation. Although other examples of such status for other dependent or disputed territories may exist, this arrangement is unique within the French realm.
Professional services networks
Professional service networks are sui generis, and each network is formed for a different reason. Current and potential members are attracted to networks in which they can pursue their own individual objectives. While networks clearly do have things in common, each must be viewed in the context of its uniqueness. A successful network is one that meets the expectations of all of its members.