GP Connect - Update Record (ITK3)

• dom-2:If the resource is contained in another resource, it SHALL NOT contain nested Resources
  contained.contained.empty()
• dom-1:If the resource is contained in another resource, it SHALL NOT contain any narrative
  contained.text.empty()
• dom-4:If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
  contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
• dom-3:If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource
  contained.where(('#'+id in %resource.descendants().reference).not()).empty()

• rim:Entity. Role, or Act
• v2:PRD (as one example)
• rim:Role
• servd:ServiceSiteProvider
• w5:administrative.individual

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:N/A

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element.

This element is labelled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

A human language.

Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded in formation is added later.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:N/A
• rim:Act.text?

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again.

• rim:Entity. Role, or Act
• rim:N/A

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

Often, specific identities are assigned for the agent.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
• rim:II - see see identifier pattern at http://wiki.hl7.org/index.php?title=Common_Design_Patterns#Identifier_Pattern for relevant discussion. The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
• servd:Identifier
• v2:PRD-7 (or XCN.1)
• rim:.id
• servd:./Identifiers
• w5:id

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

Identifies the purpose for this identifier, if known .

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:N/A
• rim:Role.code or implied by context

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Allows users to make use of identifiers when the identifier system is not known.

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.

Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CE/CNE/CWE
• rim:CD
• orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
• v2:CX.5
• rim:Role.code or implied by context

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

see http://en.wikipedia.org/wiki/Uniform_resource_identifier

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CX.4 / EI-2-4
• rim:II.root or Role.id.root
• servd:./IdentifierType

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CX.1 / EI.1
• rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
• servd:./Value

This is not a duration - that's a measure of time (a separate type), but a duration that occurs at a fixed value of time. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). If duration is required, specify the type as Interval|Duration.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• per-1:If present, start SHALL have a lower value than end
  start.empty() or end.empty() or (start <= end)

• rim:n/a
• v2:DR
• rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
• v2:CX.7 + CX.8
• rim:Role.effectiveTime or implied by context
• servd:./StartDate and ./EndDate

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ref-1:SHALL have a contained resource if a local reference is provided
  reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))

• rim:n/a
• rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
• v2:CX.4 / (CX.4,CX.9,CX.10)
• rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
• servd:./IdentifierIssuingAuthority

Need to be able to mark a practitioner record as not to be used because it was created in error.

Default is true.

If the practitioner is not in use by one organization, then it should mark the period on the PractitonerRole with an end date (even if they are active) as they may be active in another role.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:STF-7
• rim:.statusCode
• w5:status

Even after the agencies is revoked, the fact that it existed must still be recorded.

This is not a duration - that's a measure of time (a separate type), but a duration that occurs at a fixed value of time. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). If duration is required, specify the type as Interval|Duration.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• per-1:If present, start SHALL have a lower value than end
  start.empty() or end.empty() or (start <= end)

• rim:n/a
• v2:DR
• rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
• v2:PRD-8/9 / PRA-5.4
• rim:.performance[@typeCode <= 'PPRF'].ActDefinitionOrEvent.effectiveTime
• servd:(ServD maps Practitioners and Organizations via another entity, so this concept is not available)
• w5:when.done

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ref-1:SHALL have a contained resource if a local reference is provided
  reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))

• rim:n/a
• rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
• rim:.player

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ref-1:SHALL have a contained resource if a local reference is provided
  reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))

• rim:n/a
• rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
• rim:.scoper

The role a person plays representing an organization

Need to know what authority the practitioner has - what can they do?

A person may have more than one role. At least one role is required.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CE/CNE/CWE
• rim:CD
• orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
• v2:PRD-1 / STF-18 / PRA-3 / PRT-4 / ROL-3 / ORC-12 / OBR-16 / PV1-7 / PV1-8 / PV1-9 / PV1-17
• rim:.code
• servd:(ServD maps Practitioners and Organizations via another entity, so this concept is not available)

The role a person plays representing an organization

Need to know what authority the practitioner has - what can they do?

A person may have more than one role. At least one role is required.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CE/CNE/CWE
• rim:CD
• orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
• v2:PRD-1 / STF-18 / PRA-3 / PRT-4 / ROL-3 / ORC-12 / OBR-16 / PV1-7 / PV1-8 / PV1-9 / PV1-17
• rim:.code
• servd:(ServD maps Practitioners and Organizations via another entity, so this concept is not available)

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

Allows for translations and alternate encodings within a code system. Also supports communication of the same instance to systems requiring different encodings.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CE/CNE/CWE subset one of the sets of component 1-3 or 4-6
• rim:CV
• orim:fhir:Coding rdfs:subClassOf dt:CDCoding
• v2:C*E.1-8, C*E.10-22
• rim:union(., ./translation)
• orim:fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

Need to be unambiguous about the source of the definition of the symbol.

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should de-reference to some definition that establish the system clearly and unambiguously.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

https://fhir.hl7.org.uk/STU3/CodeSystem/CareConnect-SDSJobRoleName-1

• rim:n/a
• v2:C*E.3
• rim:./codeSystem
• orim:fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem

Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:C*E.7
• rim:./codeSystemVersion
• orim:fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion

Need to refer to a particular code in the system.

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:C*E.1
• rim:./code
• orim:fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code

Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:C*E.2 - but note this is not well followed
• rim:CV.displayName
• orim:fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName

This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:Sometimes implied by being first
• rim:CD.codingRationale
• orim:fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Very often the text is the same as a displayName of one of the codings.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:C*E.9. But note many systems use C*E.2 for this
• rim:./originalText[mediaType/code="text/plain"]/data
• orim:fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText

Specific specialty associated with the agency

Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• v2:CE/CNE/CWE
• rim:CD
• orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
• v2:PRA-5
• rim:.player.HealthCareProvider[@classCode = 'PROV'].code
• servd:./Specialty

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ref-1:SHALL have a contained resource if a local reference is provided
  reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))

• rim:n/a
• rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
• rim:.performance.ActDefinitionOrEvent.ServiceDeliveryLocation[@classCode = 'SDLOC']
• servd:(ServD maps Practitioners and Organizations via another entity, so this concept is not available)<br/> However these are accessed via the Site.ServiceSite.ServiceSiteProvider record. (The Site has the location)
• w5:where

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ref-1:SHALL have a contained resource if a local reference is provided
  reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))

• rim:n/a
• rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
• v2:EDU-2 / AFF-3
• rim:.player.QualifiedEntity[@classCode = 'QUAL'].code

Often practitioners have a dedicated line for each location (or service) that they work at, and need to be able to define separate contact details for each of these.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• cpt-2:A system is required if a value is provided.
  value.empty() or system.exists()

• rim:n/a
• v2:XTN
• rim:TEL
• servd:ContactPoint
• rim:.telecom

More detailed availability information may be provided in associated Schedule/Slot resources.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

The days of the week.

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

The timezone is expected to be for where this HealthcareService is provided at.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

The timezone is expected to be for where this HealthcareService is provided at.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ext-1:Must have either extensions or value[x], not both
  extension.exists() != value.exists()

• rim:n/a
• rim:N/A

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a

This is not a duration - that's a measure of time (a separate type), but a duration that occurs at a fixed value of time. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). If duration is required, specify the type as Interval|Duration.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• per-1:If present, start SHALL have a lower value than end
  start.empty() or end.empty() or (start <= end)

• rim:n/a
• v2:DR
• rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
• rim:.effectiveTime

Note that FHIR strings may not exceed 1MB in size

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())

• rim:n/a
• rim:.effectiveTime

Organizations have multiple systems that provide various services and ,ay also be different for practitioners too.

So the endpoint satisfies the need to be able to define the technical connection details for how to connect to them, and for what purpose.

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

• ele-1:All FHIR elements must have a @value or children
  hasValue() | (children().count() > id.count())
• ref-1:SHALL have a contained resource if a local reference is provided
  reference.startsWith('#').not() or (reference.substring(1).trace('url') in %resource.contained.id.trace('ids'))

• rim:n/a
• rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)