Medical treatment protocols are text documents, which are typically distributed in pdf format. In order to be able to use the protocol it first needs to be converted from text data to structured data. All actions and conditions described in the protocol are stored in an organised fashion exactly as indicated in the protocol.

A medical treatment protocol is often used in many hospitals, in various countries. During the implementation process in a specific hospital, a protocol is customised for use in that hospital. This customisation process will define details not mentioned in the protocol. The Customiser allows hospitals to set customisation rules which will affect all protocols they use. This rule engine can add new actions to an existing protocol for instance in case of supportive care.

Also new information can be added to existing actions, such as where it needs to take place or more details about the way a specific hospital wants it to be done.The Customiser allows hospitals to easily adapt the use of protocols based on their own policy and logistics.