Practice binds the members with some benefits of collaboration. A ceramic
producer and a financial institution can not join the same community of
ceramic manufacturing. They must be active in their area to get benefit out of
the interaction. This implies that a single domain comprises many practices.
However, the practice depends on the common interest of cluster members.
The practice also guides experts to share the specific knowledge in the right
places, which makes knowledge retrieval easy. An example of CoPs in a
ceramic cluster domain is illustrated in figure II.1.