The namespace used for Topic Map Transaction schema is http://www.networkedplanet.com/schema/transaction. In the examples in the rest of this section, this namespace is assumed to be mapped to the namespace prefix "txn".

The Topic Map Transaction Schema allows elements from the Topic Map Fragment Schema to be included as part of the description of actions to take place inside a transaction. The schema is described in detail in the section called “Topic Map Fragment XML Schema”. The namespace for this schema is http://www.networkedplanet.com/2005/01/topicmap/data/. In the examples in the rest of this section, this namespace is assumed to be mapped to the namespace prefix "tmd".