Frenda Wof-Connect FLC
0.1.3 -

This page is part of the Frenda Flc ig for Wof-Connect (v0.1.3: Pre-Release Update) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Logical Model: GetSlots (Extract Model) - Detailed Descriptions

Draft as of 2026-10-14

Definitions for the get-slots logical model

Guidance on how to interpret the contents of this table can be foundhere

0. get-slots
Definition

Extract model for retrieving available booking slots.

ShortGetSlots (Extract Model)
Control0..*
Is Modifierfalse
Logical ModelInstances of this logical model are not marked to be the target of a Reference
2. get-slots.meta
Definition

Standard metadata captured with each extraction.

ShortStandard metadata captured with each extraction.
Control1..1
TypeBackboneElement
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. get-slots.meta.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
6. get-slots.meta.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

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.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on get-slots.meta.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 8. get-slots.meta.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored even if unrecognized
    Comments

    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.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
    Summarytrue
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content, modifiers
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    10. get-slots.meta.requestId
    Definition

    Unique identifier for the HTTP request

    ShortUnique identifier for the HTTP request
    Control1..1
    Typestring
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    12. get-slots.meta.extractDate
    Definition

    UTC timestamp when data was extracted.

    ShortUTC timestamp when data was extracted.
    Control1..1
    TypedateTime
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    ExampleExtraction timestamp: 2025-10-31T13:42:00Z
    14. get-slots.meta.sourceSystem
    Definition

    Source system identifier (frenda | opus).

    ShortSource system identifier (frenda | opus).
    Control1..1
    Typestring
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    ExampleSource system: frenda
    16. get-slots.meta.sourceSystemVersion
    Definition

    Source system version (database or API version).

    ShortSource system version (database or API version).
    Control1..1
    Typestring
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    ExampleSource system version: 1.7.23
    18. get-slots.meta.FhirQueryParam
    Definition

    FHIR query parameters from the request (name/value pairs).

    ShortFHIR query parameters from the request (name/value pairs).
    Control0..*
    TypeBackboneElement
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    20. get-slots.meta.FhirQueryParam.id
    Definition

    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

    ShortUnique id for inter-element referencing
    Control0..1
    Typestring
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    22. get-slots.meta.FhirQueryParam.extension
    Definition

    Extensions are not allowed on query parameter rows.


    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

    ShortExtensions are not allowed on query parameter rows.Additional content defined by implementations
    Comments

    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.

    Control0..0*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on get-slots.meta.FhirQueryParam.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 24. get-slots.meta.FhirQueryParam.modifierExtension
      Definition

      Modifier extensions are not allowed on query parameter rows.


      May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortModifier extensions are not allowed on query parameter rows.Extensions that cannot be ignored even if unrecognized
      Comments

      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.

      Control0..0*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
      Summarytrue
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content, modifiers
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      26. get-slots.meta.FhirQueryParam.name
      Definition

      Name of the query parameter.

      ShortName of the query parameter.
      Control1..1
      Typestring
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      28. get-slots.meta.FhirQueryParam.value
      Definition

      Value of the query parameter.

      ShortValue of the query parameter.
      Control1..1
      Typestring
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      ExampleIdentifier value for GET /fhir/Patient?identifier=199001072397: 199001072397
      30. get-slots.meta.resourceSubPath
      Definition

      The optional remaining path segment after the FHIR resource type.

      ShortThe optional remaining path segment after the FHIR resource type.
      Control0..1
      Typestring
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      ExampleResource sub-path for GET /fhir/Organization/1234: /1234
      32. get-slots.meta.interactionLevel
      Definition

      The interaction level of the FLC operation (resource | instance).

      ShortThe interaction level of the FLC operation (resource | instance).
      Control0..1
      Typestring
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      ExampleInteraction level: instance
      34. get-slots.data
      Definition

      Wrapper for data.

      ShortWrapper for data.
      Control1..1
      TypeBackboneElement
      36. get-slots.data.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      38. get-slots.data.extension
      Definition

      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortAdditional content defined by implementations
      Comments

      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.

      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on get-slots.data.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 40. get-slots.data.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored even if unrecognized
        Comments

        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.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
        Summarytrue
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content, modifiers
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        42. get-slots.data.getAvailableSlots
        Definition

        List of available booking slots by clinics, treatments, treaters, date, and time.

        ShortList of available booking slots by clinics, treatments, treaters, date, and time.
        Control0..*
        Typehttps://canonical.fhir.link/servicewell/frenda-wof-connect-flc/StructureDefinition/frenda-available-slot

        Guidance on how to interpret the contents of this table can be foundhere

        0. get-slots
        Definition

        Extract model for retrieving available booking slots.

        ShortGetSlots (Extract Model)
        Logical ModelInstances of this logical model are not marked to be the target of a Reference
        2. get-slots.data
        4. get-slots.data.getAvailableSlots
        Definition

        List of available booking slots by clinics, treatments, treaters, date, and time.

        ShortList of available booking slots by clinics, treatments, treaters, date, and time.
        Control0..*
        Typehttps://canonical.fhir.link/servicewell/frenda-wof-connect-flc/StructureDefinition/frenda-available-slot

        Guidance on how to interpret the contents of this table can be foundhere

        0. get-slots
        Definition

        Extract model for retrieving available booking slots.

        ShortGetSlots (Extract Model)
        Control0..*
        Is Modifierfalse
        Logical ModelInstances of this logical model are not marked to be the target of a Reference
        2. get-slots.meta
        Definition

        Standard metadata captured with each extraction.

        ShortStandard metadata captured with each extraction.
        Control1..1
        TypeBackboneElement
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        4. get-slots.meta.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        6. get-slots.meta.extension
        Definition

        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortAdditional content defined by implementations
        Comments

        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.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on get-slots.meta.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 8. get-slots.meta.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          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.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          10. get-slots.meta.requestId
          Definition

          Unique identifier for the HTTP request

          ShortUnique identifier for the HTTP request
          Control1..1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          12. get-slots.meta.extractDate
          Definition

          UTC timestamp when data was extracted.

          ShortUTC timestamp when data was extracted.
          Control1..1
          TypedateTime
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          ExampleExtraction timestamp: 2025-10-31T13:42:00Z
          14. get-slots.meta.sourceSystem
          Definition

          Source system identifier (frenda | opus).

          ShortSource system identifier (frenda | opus).
          Control1..1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          ExampleSource system: frenda
          16. get-slots.meta.sourceSystemVersion
          Definition

          Source system version (database or API version).

          ShortSource system version (database or API version).
          Control1..1
          Typestring
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          ExampleSource system version: 1.7.23
          18. get-slots.meta.FhirQueryParam
          Definition

          FHIR query parameters from the request (name/value pairs).

          ShortFHIR query parameters from the request (name/value pairs).
          Control0..*
          TypeBackboneElement
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          20. get-slots.meta.FhirQueryParam.id
          Definition

          Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

          ShortUnique id for inter-element referencing
          Control0..1
          Typestring
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          22. get-slots.meta.FhirQueryParam.extension
          Definition

          Extensions are not allowed on query parameter rows.

          ShortExtensions are not allowed on query parameter rows.
          Control0..0
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          SlicingThis element introduces a set of slices on get-slots.meta.FhirQueryParam.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 24. get-slots.meta.FhirQueryParam.modifierExtension
            Definition

            Modifier extensions are not allowed on query parameter rows.

            ShortModifier extensions are not allowed on query parameter rows.
            Control0..0
            TypeExtension
            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            26. get-slots.meta.FhirQueryParam.name
            Definition

            Name of the query parameter.

            ShortName of the query parameter.
            Control1..1
            Typestring
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            28. get-slots.meta.FhirQueryParam.value
            Definition

            Value of the query parameter.

            ShortValue of the query parameter.
            Control1..1
            Typestring
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            ExampleIdentifier value for GET /fhir/Patient?identifier=199001072397: 199001072397
            30. get-slots.meta.resourceSubPath
            Definition

            The optional remaining path segment after the FHIR resource type.

            ShortThe optional remaining path segment after the FHIR resource type.
            Control0..1
            Typestring
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            ExampleResource sub-path for GET /fhir/Organization/1234: /1234
            32. get-slots.meta.interactionLevel
            Definition

            The interaction level of the FLC operation (resource | instance).

            ShortThe interaction level of the FLC operation (resource | instance).
            Control0..1
            Typestring
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            ExampleInteraction level: instance
            34. get-slots.data
            Definition

            Wrapper for data.

            ShortWrapper for data.
            Control1..1
            TypeBackboneElement
            36. get-slots.data.id
            Definition

            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

            ShortUnique id for inter-element referencing
            Control0..1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            38. get-slots.data.extension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

            ShortAdditional content defined by implementations
            Comments

            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.

            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            SlicingThis element introduces a set of slices on get-slots.data.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 40. get-slots.data.modifierExtension
              Definition

              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

              ShortExtensions that cannot be ignored even if unrecognized
              Comments

              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.

              Control0..*
              TypeExtension
              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
              Summarytrue
              Requirements

              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

              Alternate Namesextensions, user content, modifiers
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              42. get-slots.data.getAvailableSlots
              Definition

              List of available booking slots by clinics, treatments, treaters, date, and time.

              ShortList of available booking slots by clinics, treatments, treaters, date, and time.
              Control0..*
              Typehttps://canonical.fhir.link/servicewell/frenda-wof-connect-flc/StructureDefinition/frenda-available-slot