A guidance request is a request to evaluate a particular knowledge module focused on decision support, providing information relevant to decision support such as workflow and user context.

A reference to a knowledge module involved in an interaction.

The date and time of the request, with respect to the initiator.

Indicates that the evaluation should be performed as though it was the given date and time. The most direct implication of this is that references to "Now" within the evaluation logic of the module should result in this value. In addition, wherever possible, the data accessed by the module should appear as though it was accessed at this time. The evaluateAtDateTime value may be any time in the past or future, enabling both retrospective and prospective scenarios. If no value is provided, the requestDateTime is assumed.

The input parameters for a request, if any. These parameters are used to provide patient-independent information to the evaluation. Patient-specific information is either accessed directly as part of the evaluation (because the evaluation engine and the patient-data are co-located) or provided as part of the operation input in the form of resources.

The organization initiating the request.

The person initiating the request.

The type of user initiating the request, e.g. patient, healthcare provider, or specific type of healthcare provider (physician, nurse, etc.).

Preferred language of the person using the system.

The task the system user is performing, e.g. laboratory results review, medication list review, etc. This information can be used to tailor decision support outputs, such as recommended information resources.

The organization that will receive the response.

The person in the receiving organization that will receive the response.

The type of individual that will consume the response content. This may be different from the requesting user type (e.g. if a clinician is getting disease management guidance for provision to a patient). E.g. patient, healthcare provider or specific type of healthcare provider (physician, nurse, etc.).

Preferred language of the person that will consume the content.

The class of encounter (inpatient, outpatient, etc).

The type of the encounter.