This page is part of the Twiin Workflow (v0.3.0-draft: Release 1 Draft) based on FHIR (HL7® FHIR® Standard) R4. No current official version has been published yet. For a full list of available versions, see the Directory of published versions

Artifacts overview

This page is informative. It lists the artifacts in this guide and the section of TA Workflow each one belongs to. The requirements themselves are in the TA.

Profiles

Artifact	Based on	TA section
Twiin Coordination Task	coordination-task (COW IG 1.0.0-ballot)	Summary of the profiles → Coordination Task; Coordination Task; Status of the Coordination Task; Patient context and readability; Type of work on the Task; Sharing additional content; Search parameters
Twiin Cancellation Request Task	cancellation-request-task (COW IG 1.0.0-ballot)	Summary of the profiles → Cancellation Request Task; Cancellation Request Task
Twiin Authorization Cancellation Request Task	Task (FHIR R4)	Summary of the profiles → Authorization Cancellation Request Task; Cancellation by the Fulfiller
Twiin Workflow ServiceRequest	ServiceRequest (FHIR R4)	Summary of the profiles → ServiceRequest; Request; Patient context and readability
Twiin Workflow Subscription	twiin-subscription (Twiin Notifications 0.2.0-draft)	Subscription

Task.owner and Task.location refer to a HealthcareService and a Location, with the type and a complete identifier (system, value and the identifier of its assigner) required. That they are profiled by GF Addressing is not expressed in the artifacts of this guide (see Requirements not expressed in artifacts). The invariant twiin-aid-1 excludes an assigner identified by a KvK number; the URA system of the assigner is not fixed in this guide.

COW IG defines no profile for the Authorization Cancellation Request Task. Its requester is the Fulfiller as an organization, identified by its URA, as its owner is the Placer: FHIR R4 does not allow Task.requester to refer to a HealthcareService (TA section Summary of the profiles → Authorization Cancellation Request Task).

Some constraints interpret the TA:

• Task.code of the Authorization Cancellation Request Task ("fixed to abort") and Task.input.type are expressed as patterns, as COW IG does for the Cancellation Request Task.
• The entries with type supplemental-resource and supplemental-query on the Coordination Task are optional slices that fix the value type (TA section Sharing additional content).
• twiin-wsub-1 checks the form owner:identifier=[system]|[value] of the filter; it cannot check that the identifier is that of a HealthcareService.
• twiin-task-1 (statusReason.text when statusReason is populated) applies to all three Task profiles, as in the three tables of the TA.

Invariants

Key	Severity	Profile	Rule
twiin-ct-1	error	Coordination Task	The statuses draft, ready and on-hold are not used
twiin-ct-2	error	Coordination Task	statusReason not-selected only when the status is cancelled
twiin-ct-3	error	Coordination Task	businessStatus selected implies code fulfill and for populated
twiin-ct-5	warning	Coordination Task	statusReason when the status is rejected or cancelled
twiin-ct-6	warning	Coordination Task	for.identifier is not populated
twiin-ct-7	error	Coordination Task	status in-progress or completed implies code fulfill
twiin-crt-1	error	Cancellation Request Task	status requested, accepted, rejected, cancelled or entered-in-error
twiin-acrt-1	error	Authorization Cancellation Request Task	status requested, accepted or rejected
twiin-task-1	warning	all Task profiles	statusReason.text when statusReason is populated
twiin-aid-1	error	Coordination Task, Cancellation Request Task	The assigner of the identifier of a HealthcareService or Location is not a KvK number
twiin-sr-1	error	ServiceRequest	subject is not masked with data-absent-reason
twiin-wsub-1	error	Subscription	Filter of the form owner:identifier=[system]|[value]

Terminology

Artifact	TA section
TA Workflow Codes	Codes of this TA
TA Workflow Task Code	Codes of this TA

Capability statement

Artifact	TA section
Twiin Workflow Placer Server	Placer server capabilities; Concurrent writes; Search parameters

The capability statement imports the Twiin Subscription Server of TA Notifications for Subscription. Support for the modifier :identifier, and that create on Task is only for the Authorization Cancellation Request Task, are stated in documentation, because a CapabilityStatement has no element for them.

Examples

Example	TA section
ServiceRequest: transfer of care	Request; Patient context and readability
ServiceRequest: no definition	Request; Routing by the Fulfiller
Patient	Patient context and readability
Coordination Task: candidate invited	Multiple Fulfillers Pattern; Sharing additional content; Patient context and readability
Coordination Task: candidate selected	Multiple Fulfillers Pattern; Bidding
Coordination Task: candidate not selected	Reason for cancelling a non-selected candidate
Coordination Task: single Fulfiller, in progress	Single Fulfiller Pattern; Sharing additional content
Coordination Task: single Fulfiller, awaiting information	Single Fulfiller Pattern; Business status
Cancellation Request Task	Cancellation Request (After in-progress)
Authorization Cancellation Request Task	Cancellation by the Fulfiller
Subscription for a HealthcareService	Subscription

The examples are not taken from the TA, which contains none. Hosts, identifiers, the topic URL and the ActivityDefinition URL are invented; the type of work uses SNOMED CT 308292007, which the TA names as the code of eOverdracht.