The NPCL Forms XML Schema provides an alternate XML representation of a set of NPCL types and constraints. This representation has been optimised for generating topic-oriented user interfaces such as forms interfaces for topic editing. The focus of this schema is on the topic types and the information that can be added to a topic of a particular type. A more generalized XML representation is provided by the NPCL XML Schema. This section describes the NPCL Forms XML Schema in detail. The W3C XML Schema representation is also included in the TMCore distribution and can be downloaded from the NetworkedPlanet website.