Profile Comparison between http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-social-history vs http://hl7.org/fhir/us/ecr/StructureDefinition/us-ph-exposure-contact-information

Left:US Core Observation Social History Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-social-history)
Right:US Public Health Exposure Contact Information (http://hl7.org/fhir/us/ecr/StructureDefinition/us-ph-exposure-contact-information)

Messages

ErrorStructureDefinition.urlValues for url differ: 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-social-history' vs 'http://hl7.org/fhir/us/ecr/StructureDefinition/us-ph-exposure-contact-information'
ErrorStructureDefinition.versionValues for version differ: '5.0.1' vs '2.1.0'
InformationStructureDefinition.nameValues for name differ: 'USCoreObservationSocialHistoryProfile' vs 'USPublicHealthExposureContactInformation'
InformationStructureDefinition.titleValues for title differ: 'US Core Observation Social History Profile' vs 'US Public Health Exposure Contact Information'
InformationStructureDefinition.dateValues for date differ: '2022-04-20' vs '2022-08-31T17:40:18+00:00'
InformationStructureDefinition.publisherValues for publisher differ: 'HL7 International - Cross-Group Projects' vs 'HL7 Public Health Work Group (http://www.hl7.org/Special/committees/pher/index.cfm)'
WarningObservationElements differ in short: 'assessment observation' vs 'US Public Health Exposure Contact Information'
WarningObservationElements differ in definition: '\-' vs 'This profile represents patient exposure information.'
WarningObservationElements differ in comments: '\-' vs 'Used for simple observations such as device measurements, laboratory atomic results, vital signs, height, weight, smoking status, comments, etc. Other resources are used to provide context for observations such as laboratory reports, etc.'
WarningObservation.extensionElements differ in short: 'Additional content defined by implementations' vs 'Exposure/contact address'
WarningObservation.extensionElements differ in definition: 'May be used to represent additional information that is not part of the basic definition of the resource. 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.' vs 'If an address where the exposure/contact took place is known then it can be contained in the address-extension.'
WarningObservation.extensionElements differ in definition for mustSupport: 'false' vs 'true'
InformationObservation.extensionElement maximum cardinalities differ: '2147483647' vs '1'
WarningObservation.statusElements differ in definition for mustSupport: 'true' vs 'false'
WarningObservation.categoryElements differ in short: 'Classification of type of observation' vs 'Use AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown'
WarningObservation.categoryElements differ in definition: 'A code that classifies the general type of observation being made.' vs 'Use AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown'
InformationObservation.categoryElement maximum cardinalities differ: '2147483647' vs '1'
WarningObservation.categoryElements differ in binding.description: 'Codes for high level observation categories.' vs 'ActClassExposure'
WarningObservation.codeElements differ in short: 'Type of observation (code / type)' vs 'The type of exposure/contact (environmental, activity, event, location, person, animal, etc.).'
WarningObservation.codeElements differ in definition: 'Describes what was observed. Sometimes this is called the observation 'name'.' vs 'Suggested value sets: [Exposure Setting (COVID-19)], [Exposure Location], [Social History Type]'
WarningObservation.focusElements differ in short: 'What the observation is about, when it is not about the subject of record' vs 'Contains either the patient's contact with an entity (person, animal, or substance) or presence at a location where exposure to an agent could have occurred or the patient's contact with an entity (person, animal, or substance) or presence at a location where transmission from the patient could have occurred'
WarningObservation.focusElements differ in definition: 'The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.' vs 'Contact with an entity (person, animal) or at a location.'
WarningObservation.focusElements differ in definition for mustSupport: 'false' vs 'true'
WarningObservation.effective[x]Elements differ in short: 'Clinically relevant time/time-period for observation' vs 'Time or period the contact/exposure occurred.'
WarningObservation.effective[x]Elements differ in definition: 'The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the 'physiologically relevant time'.' vs 'The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the 'physiologically relevant time'. This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.'
WarningObservation.effective[x]Elements differ in comments: 'At least a date should be present unless this observation is a historical report.' vs 'At least a date should be present unless this observation is a historical report. For recording imprecise or 'fuzzy' times (For example, a blood glucose measurement taken 'after breakfast') use the [Timing] datatype which allow the measurement to be tied to regular life events.'
WarningObservation.performerElements differ in definition for mustSupport: 'true' vs 'false'
WarningObservation.value[x]Elements differ in short: 'Actual result' vs 'Specific exposure/contact'
WarningObservation.value[x]Elements differ in definition: 'The information determined as a result of making the observation, if the information has a simple value.' vs 'Specific exposure/contact'
WarningObservation.componentElements differ in short: 'Component results' vs 'Possible agent of concern in the exposure'
WarningObservation.componentElements differ in definition for mustSupport: 'false' vs 'true'
WarningObservation.component.codeElements differ in short: 'Type of component observation (code / type)' vs 'ExposureAgent'
WarningObservation.component.codeElements differ in definition: 'Describes what was observed. Sometimes this is called the observation 'code'.' vs ' The physical (including energy), chemical or biological substance that is participating in the exposure. For example in communicable diseases, the disease causing pathogen.'
WarningObservation.component.codeElements differ in definition for mustSupport: 'false' vs 'true'
WarningObservation.component.value[x]Elements differ in short: 'Actual component result' vs 'Possible agent of concern in the exposure'
WarningObservation.component.value[x]Elements differ in definition for mustSupport: 'false' vs 'true'
InformationObservation.component.value[x]Element minimum cardinalities differ: '0' vs '1'

Metadata

NameValueComments
.abstractfalse
    .baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Observation
      .copyrightUsed by permission of HL7 International, all rights reserved Creative Commons License
      • Removed the item 'Used by permission of HL7 International, all rights reserved Creative Commons License'
      .date2022-04-202022-08-31T17:40:18+00:00
      • Values Differ
      .descriptionThe US Core Observation Social History Profile meets the U.S. Core Data for Interoperability (USCDI) v2 ‘SDOH Assessments’ requirements. To promote interoperability and adoption through common implementation, this profile sets minimum expectations for the Observation resource to record, search, and fetch retrieve observations that represent simple observations made by an individual about a patient's social history status such as education, food insecurity, etc. It identifies which core elements, extensions, vocabularies and value sets **SHALL** be present in the resource when using this profile. It provides the floor for standards development for specific uses cases.This Observation profile represents potential patient exposure and contact information and should be used to record information about the patient's exposure to an agent (exposure source) or to record information about those that the patient could have exposed to an agent (exposure target). Recording of this information could assist/support in contact tracing or other control measures.
      • Values Differ
      .experimentalfalse
      • Added the item 'false'
      .fhirVersion4.0.1
        .jurisdiction
          ..jurisdiction[0]urn:iso:std:iso:3166#US
            .kindresource
              .nameUSCoreObservationSocialHistoryProfileUSPublicHealthExposureContactInformation
              • Values Differ
              .publisherHL7 International - Cross-Group ProjectsHL7 Public Health Work Group (http://www.hl7.org/Special/committees/pher/index.cfm)
              • Values Differ
              .purpose
                .statusactive
                  .titleUS Core Observation Social History ProfileUS Public Health Exposure Contact Information
                  • Values Differ
                  .typeObservation
                    .urlhttp://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-social-historyhttp://hl7.org/fhir/us/ecr/StructureDefinition/us-ph-exposure-contact-information
                    • Values Differ
                    .version5.0.12.1.0
                    • Values Differ

                    Structure

                    NameL FlagsL Card.L TypeL Description & ConstraintsR FlagsR Card.L TypeL Description & ConstraintsCommentsdoco
                    .. Observation I0..*Observationassessment observation
                    I0..*ObservationUS Public Health Exposure Contact Information
                    • Elements differ in short: 'assessment observation' vs 'US Public Health Exposure Contact Information'
                    • Elements differ in definition: '\-' vs 'This profile represents patient exposure information.'
                    • Elements differ in comments: '\-' vs 'Used for simple observations such as device measurements, laboratory atomic results, vital signs, height, weight, smoking status, comments, etc. Other resources are used to provide context for observations such as laboratory reports, etc.'
                    ... id Σ0..1stringLogical id of this artifactΣ0..1stringLogical id of this artifact
                      ... meta Σ0..1MetaMetadata about the resourceΣ0..1MetaMetadata about the resource
                        ... implicitRules ?!Σ0..1uriA set of rules under which this content was created?!Σ0..1uriA set of rules under which this content was created
                          ... language 0..1codeLanguage of the resource content
                          Binding: CommonLanguages (preferred): A human language.

                          Additional BindingsPurpose
                          AllLanguagesMax Binding
                          0..1codeLanguage of the resource content
                          Binding: CommonLanguages (preferred): A human language.

                          Additional BindingsPurpose
                          AllLanguagesMax Binding
                            ... text 0..1NarrativeText summary of the resource, for human interpretation0..1NarrativeText summary of the resource, for human interpretation
                              ... contained 0..*ResourceContained, inline Resources
                              0..*ResourceContained, inline Resources
                                ... us-ph-address-extension 0..*ExtensionAdditional content defined by implementations
                                S0..1AddressExposure/contact address
                                URL: http://hl7.org/fhir/us/ecr/StructureDefinition/us-ph-address-extension
                                • Elements differ in short: 'Additional content defined by implementations' vs 'Exposure/contact address'
                                • Elements differ in definition: 'May be used to represent additional information that is not part of the basic definition of the resource. 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.' vs 'If an address where the exposure/contact took place is known then it can be contained in the address-extension.'
                                • Elements differ in definition for mustSupport: 'false' vs 'true'
                                • Element maximum cardinalities differ: '2147483647' vs '1'
                                ... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
                                ?!0..*ExtensionExtensions that cannot be ignored
                                  ... identifier Σ0..*IdentifierBusiness Identifier for observation
                                  Σ0..*IdentifierBusiness Identifier for observation
                                    ... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
                                    Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
                                      ... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)Part of referenced event
                                      Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)Part of referenced event
                                        ... status ?!SΣ1..1coderegistered | preliminary | final | amended +
                                        Binding: ObservationStatus (required): Codes providing the status of an observation.

                                        ?!Σ1..1coderegistered | preliminary | final | amended +
                                        Binding: ObservationStatus (required): Codes providing the status of an observation.

                                        • Elements differ in definition for mustSupport: 'true' vs 'false'
                                        ... Slices for category S1..*CodeableConceptClassification of type of observation
                                        Slice: Unordered, Open by pattern:$this
                                        Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


                                        S1..1CodeableConceptUse AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown
                                        Binding: ActClassExposure (required): ActClassExposure


                                        • Elements differ in short: 'Classification of type of observation' vs 'Use AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown'
                                        • Elements differ in definition: 'A code that classifies the general type of observation being made.' vs 'Use AEXPOS for aquisition exposure, use TEXPOS for transmission exposure, or use EXPOS if the type of exposure is unknown'
                                        • Element maximum cardinalities differ: '2147483647' vs '1'
                                        • Elements differ in binding.description: 'Codes for high level observation categories.' vs 'ActClassExposure'
                                        ... code SΣ1..1CodeableConceptType of observation (code / type)
                                        Binding: LOINCCodes (preferred)
                                        SΣ1..1CodeableConceptThe type of exposure/contact (environmental, activity, event, location, person, animal, etc.).
                                        Binding: LOINCCodes (example): Codes identifying names of simple observations.

                                        • Elements differ in short: 'Type of observation (code / type)' vs 'The type of exposure/contact (environmental, activity, event, location, person, animal, etc.).'
                                        • Elements differ in definition: 'Describes what was observed. Sometimes this is called the observation "name".' vs 'Suggested value sets: [Exposure Setting (COVID-19)], [Exposure Location], [Social History Type]'
                                        ... subject SΣ1..1Reference(US Core Patient Profile)Who and/or what the observation is aboutSΣ1..1Reference(US Public Health Patient)Who and/or what the observation is about
                                          ... focus Σ0..*Reference(Resource)What the observation is about, when it is not about the subject of record
                                          SΣ0..*Reference(US Public Health Patient | RelatedPerson | Group | US Core Location Profile)Contains either the patient's contact with an entity (person, animal, or substance) or presence at a location where exposure to an agent could have occurred or the patient's contact with an entity (person, animal, or substance) or presence at a location where transmission from the patient could have occurred
                                          • Elements differ in short: 'What the observation is about, when it is not about the subject of record' vs 'Contains either the patient's contact with an entity (person, animal, or substance) or presence at a location where exposure to an agent could have occurred or the patient's contact with an entity (person, animal, or substance) or presence at a location where transmission from the patient could have occurred'
                                          • Elements differ in definition: 'The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.' vs 'Contact with an entity (person, animal) or at a location.'
                                          • Elements differ in definition for mustSupport: 'false' vs 'true'
                                          ... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is madeΣ0..1Reference(Encounter)Healthcare event during which this observation is made
                                            ... effective[x] SΣI0..1dateTime S, Period, Timing, instantClinically relevant time/time-period for observation
                                            us-core-1: Datetime must be at least to day.
                                            SΣ0..1dateTime, Period, Timing, instantTime or period the contact/exposure occurred.
                                            • Elements differ in short: 'Clinically relevant time/time-period for observation' vs 'Time or period the contact/exposure occurred.'
                                            • Elements differ in definition: 'The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time".' vs 'The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.'
                                            • Elements differ in comments: 'At least a date should be present unless this observation is a historical report.' vs 'At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the [Timing] datatype which allow the measurement to be tied to regular life events.'
                                            ... issued Σ0..1instantDate/Time this version was made availableΣ0..1instantDate/Time this version was made available
                                              ... performer SΣ0..*Reference(US Core Practitioner Profile S | US Core Organization Profile | US Core Patient Profile | PractitionerRole | US Core CareTeam Profile | US Core RelatedPerson Profile)Who is responsible for the observation
                                              Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
                                              • Elements differ in definition for mustSupport: 'true' vs 'false'
                                              ... value[x] SΣI0..1Quantity S, CodeableConcept S, string S, boolean S, integer, Range, Ratio, SampledData, time, dateTime, PeriodActual resultSΣI0..1CodeableConcept, stringSpecific exposure/contact
                                              • Elements differ in short: 'Actual result' vs 'Specific exposure/contact'
                                              • Elements differ in definition: 'The information determined as a result of making the observation, if the information has a simple value.' vs 'Specific exposure/contact'
                                              ... dataAbsentReason I0..1CodeableConceptWhy the result is missing
                                              Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

                                              I0..1CodeableConceptWhy the result is missing
                                              Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

                                                ... interpretation 0..*CodeableConceptHigh, low, normal, etc.
                                                Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


                                                0..*CodeableConceptHigh, low, normal, etc.
                                                Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


                                                  ... note 0..*AnnotationComments about the observation
                                                  0..*AnnotationComments about the observation
                                                    ... bodySite 0..1CodeableConceptObserved body part
                                                    Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.

                                                    0..1CodeableConceptObserved body part
                                                    Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.

                                                      ... method 0..1CodeableConceptHow it was done
                                                      Binding: ObservationMethods (example): Methods for simple observations.

                                                      0..1CodeableConceptHow it was done
                                                      Binding: ObservationMethods (example): Methods for simple observations.

                                                        ... specimen 0..1Reference(Specimen)Specimen used for this observation0..1Reference(Specimen)Specimen used for this observation
                                                          ... device 0..1Reference(Device | DeviceMetric)(Measurement) Device0..1Reference(Device | DeviceMetric)(Measurement) Device
                                                            ... referenceRange I0..*BackboneElementProvides guide for interpretation
                                                            I0..*BackboneElementProvides guide for interpretation
                                                              .... id 0..1stringUnique id for inter-element referencing0..1stringUnique id for inter-element referencing
                                                                .... extension 0..*ExtensionAdditional content defined by implementations
                                                                0..*ExtensionAdditional content defined by implementations
                                                                  .... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
                                                                  ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
                                                                    .... low I0..1SimpleQuantityLow Range, if relevantI0..1SimpleQuantityLow Range, if relevant
                                                                      .... high I0..1SimpleQuantityHigh Range, if relevantI0..1SimpleQuantityHigh Range, if relevant
                                                                        .... type 0..1CodeableConceptReference range qualifier
                                                                        Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.

                                                                        0..1CodeableConceptReference range qualifier
                                                                        Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.

                                                                          .... appliesTo 0..*CodeableConceptReference range population
                                                                          Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.


                                                                          0..*CodeableConceptReference range population
                                                                          Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.


                                                                            .... age 0..1RangeApplicable age range, if relevant0..1RangeApplicable age range, if relevant
                                                                              .... text 0..1stringText based reference range in an observation0..1stringText based reference range in an observation
                                                                                ... hasMember Σ0..*Reference(Observation | QuestionnaireResponse | MolecularSequence)Related resource that belongs to the Observation group
                                                                                Σ0..*Reference(Observation | QuestionnaireResponse | MolecularSequence)Related resource that belongs to the Observation group
                                                                                  ... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)Related measurements the observation is made from
                                                                                  Σ0..*Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)Related measurements the observation is made from
                                                                                    ... component Σ0..*BackboneElementComponent results
                                                                                    SΣ0..*BackboneElementPossible agent of concern in the exposure
                                                                                    • Elements differ in short: 'Component results' vs 'Possible agent of concern in the exposure'
                                                                                    • Elements differ in definition for mustSupport: 'false' vs 'true'
                                                                                    .... id 0..1stringUnique id for inter-element referencing0..1stringUnique id for inter-element referencing
                                                                                      .... extension 0..*ExtensionAdditional content defined by implementations
                                                                                      0..*ExtensionAdditional content defined by implementations
                                                                                        .... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
                                                                                        ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
                                                                                          .... code Σ1..1CodeableConceptType of component observation (code / type)
                                                                                          Binding: LOINCCodes (example): Codes identifying names of simple observations.

                                                                                          SΣ1..1CodeableConceptExposureAgent
                                                                                          Binding: LOINCCodes (example): Codes identifying names of simple observations.


                                                                                          Required Pattern: {"coding":[{"system":"http://terminology.hl7.org/CodeSystem/v3-ParticipationType","code":"EXPAGNT"}]}
                                                                                          • Elements differ in short: 'Type of component observation (code / type)' vs 'ExposureAgent'
                                                                                          • Elements differ in definition: 'Describes what was observed. Sometimes this is called the observation "code".' vs ' The physical (including energy), chemical or biological substance that is participating in the exposure. For example in communicable diseases, the disease causing pathogen.'
                                                                                          • Elements differ in definition for mustSupport: 'false' vs 'true'
                                                                                          .... value[x] Σ0..1Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, PeriodActual component resultSΣ1..1CodeableConcept, stringPossible agent of concern in the exposure
                                                                                          • Elements differ in short: 'Actual component result' vs 'Possible agent of concern in the exposure'
                                                                                          • Elements differ in definition for mustSupport: 'false' vs 'true'
                                                                                          • Element minimum cardinalities differ: '0' vs '1'
                                                                                          .... dataAbsentReason I0..1CodeableConceptWhy the component result is missing
                                                                                          Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

                                                                                          I0..1CodeableConceptWhy the component result is missing
                                                                                          Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

                                                                                            .... interpretation 0..*CodeableConceptHigh, low, normal, etc.
                                                                                            Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


                                                                                            0..*CodeableConceptHigh, low, normal, etc.
                                                                                            Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


                                                                                              .... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result
                                                                                              0..*See referenceRange (Observation)Provides guide for interpretation of component result

                                                                                                doco Documentation for this format