STR Application Profile (STR-AP)

Abstract

The STR-AP (Short Term Rental Application Profile) is a data model that captures the concepts expressed in the current proposed Regulation on short-term accommodation rental services.

Terminology

An Application Profile is a data specification aimed to facilitate the data exchange in a well-defined application context. It re-uses concepts from one or more semantic data specifications, while adding more specificity, by identifying mandatory, recommended, and optional elements, addressing particular application needs, and providing recommendations for controlled vocabularies to be used. More information can be found on the SEMIC Style Guide.

This specification uses the following prefixes to shorten the URIs for readibility.

Prefix	Namespace IRI
`adms`	`http://www.w3.org/ns/adms#`
`cpsv`	`http://purl.org/vocab/cpsv#`
`cv`	`http://data.europa.eu/m8g/`
`dcat`	`http://www.w3.org/ns/dcat#`
`dct`	`http://purl.org/dc/terms/`
`foaf`	`http://xmlns.com/foaf/0.1/`
`legal`	`http://www.w3.org/ns/legal#`
`locn`	`http://www.w3.org/ns/locn#`
`org`	`http://www.w3.org/ns/org#`
`person`	`http://www.w3.org/ns/person#`
`rdf`	`http://www.w3.org/1999/02/22-rdf-syntax-ns#`
`rdfs`	`http://www.w3.org/2000/01/rdf-schema#`
`schema`	`https://schema.org/`
`skos`	`http://www.w3.org/2004/02/skos/core#`
`str`	`https://w3id.org/str/`
`time`	`http://www.w3.org/2006/time#`
`xsd`	`http://www.w3.org/2001/XMLSchema#`

Main Entities

The main entities are those that form the core of the Core Vocabulary.

Activity Data

Definition: The number of nights for which a unit is rented and the number of guests that the unit was rented to per night, and their country of residence, in accordance with Regulation (EU) 692/2011.
Properties: For this entity the following properties are defined: country of the guests , is about , number of guests , temporal .

Property	Range	Card	Definition	Usage	Use Case
country of the guests	Concept	1..*	The country of residence of the guests.	The recommended values are those from the Country authority table of the Publications Office.	UC 6
is about	Unit	1	The Unit associated to the activity data.		UC 6
number of guests	Integer	1	The number of guest that the unit was rented to per night.		UC 6
temporal	Period of time	1	It indicates the period of time associated.		UC 6

Evidence

Definition: Proof that a Requirement is met.
Usage Note: Evidence can be any resource - document, artefact - anything needed for executing the Public Service. In the context of Public Services, Evidence is usually administrative documents or completed application forms. A specific Public Service may require the presence of certain Evidence or combinations of Evidence in order to be delivered. In some cases, the Output of one service will be Evidence for another service. Such relationships should be described in the associated Rule(s).
Properties: For this entity the following properties are defined: describes , identifier , name , related documentation , submission date , update date , validity period .

Property	Range	Card	Definition	Usage	Use Case
describes	Unit	0..1	It indicates the Unit described.		UC 1
identifier	Literal	1	An Identifier for the piece of Evidence.		UC 1
name	langString	1..*	The official Name of the piece of Evidence.		UC 1
related documentation	Document	0..*	The documentation that contains information.	For instance, a particular template for an administrative document, an application or a guide on formatting the Evidence.	UC 1
submission date	DateTime	1	The date in which the Document has been submitted.		UC 1
update date	DateTime	0..1	The date in which the Document has been updated.		UC 1
validity period	Period of time	0..1	Period of Time during which the Evidence holds true or has force.		UC 1

Legal Entity

Definition: A self-employed person, company, or organization that has legal rights and obligations.
Usage Note: A Legal Entity able to transact business, typically registered with a body able to confer legal status such as a national business register. It is able to trade, is legally liable for its actions, accounts, tax affairs etc. This makes Legal Entities distinct from the concept of organisations or groups. Many organisations exist that are not Legal Entities, yet to the outside world they have staff, hierarchies, locations etc. Other organisations exist that are an umbrella for several Legal Entities (universities are often good examples of this). In STR, a legal person acting as a "host", that provides, or intends to provide, on a professional or non-professional basis, on a regular or on a temporary basis, a short-term accommodation rental service provided for remuneration through an online short-term rental platform.
Properties: For this entity the following properties are defined: has legal representative , is notified by , is referred in , legal identifier , legal name , offers , provides , registered address .

Property	Range	Card	Definition	Usage	Use Case
has legal representative	Person	1..*	It indicates the Person that can represent legally an organization.		UC 1
is notified by	Public Organisation	0..*	It indicates the competent auhority notifying.
is referred in	Order	0..*	It indicates the Order in which the host is referred.		UC 5
legal identifier	Identifier	1	The unambiguous structured reference assigned to the Legal Entity by the legal authority that registered it.		UC 1
legal name	langString	1..*	The name under which the Legal Entity is legally registered.	The legal name is different from the alternative (trade) name which is a pseudonym used by companies that do not operate under their registered company name. A business might have more than one legal name, particularly in countries with more than one official language. In such cases, and where the encoding technology allows, the language of the string should be identified.	UC 1
offers	Short Term Accomodation Rental Service	0..*	It indicates the rental service offered.		UC 4
provides	Evidence	0..*	It indicates the Evidence provided.		UC 1
registered address	Address	1	The address at which the Legal Entity is legally registered.		UC 1

Online Short Term Rental Platform

Definition: An online platform within the meaning of Article 3, point (i), of Regulation (EU) 2022/2065, that allows guests to conclude distance contracts with hosts for the provision of short-term accommodation rental services.
Properties: For this entity the following properties are defined: checks , identifier , provides information to , publishes , requests area , type .

Property	Range	Card	Definition	Usage	Use Case
checks	Single Digital Entry Point	0..*	It indicates the Single Digital Entry Point being checked.
identifier	Literal	1	An Identifier for the OnlineShortTermRentalPlatform
provides information to	Single Digital Entry Point	0..*	It indicates the Single Digital Entry Point receiving information.
publishes	Dataset	1..*	It indicates the Dataset of listings published.
requests area	Geometry	0..*	The area requested by the Online Short Term Rental Platform.		UC 3
type	Concept	1	The type of an Online Short Term Rental Platform.	Values can take small, micro or medium.

Order

Definition: A decision issued by a court or authoritative body.
Properties: For this entity the following properties are defined: concerns , has listing , identifier , reason , sent to .

Property	Range	Card	Definition	Use Case
concerns	Registration Number	1	It indicated the Registration Number concerned.	UC 5
has listing	Unit	1	The reference to a unit offered for short-term accommodation rental services and published on an online short-term rental platforms website.	UC 5
identifier	Literal	1	An Identifier for the Order.	UC 5
reason	langString	1	The statement indicating the reason of the Order.	UC 5
sent to	Online Short Term Rental Platform	1	It indicates the receiver of the Order.	UC 5

Person

Definition: A individual human being who may be dead or alive,but not imaginary.
Usage Note: In STR, a natural person acting as a "host", that provides, or intends to provide, on a professional or non-professional basis, on a regular or on a temporary basis, a short-term accommodation rental service provided for remuneration through an online short-term rental platform. It can also be a person appointed as national coordinator for a Single Digital Entry Point.
Properties: For this entity the following properties are defined: contact point , domicile , family name , given name , identifier , is notified by , is point of contact for , is referred in , offers , provides .

Property	Range	Card	Definition	Usage	Use Case
contact point	Contact Point	1..*	The main contact information of the resource.		UC 1
domicile	Address	1..*	The place that the Person treats as permanent home.		UC 1
family name	langString	1	The hereditary surname of a family.	Usually referring to a group of people related by blood, marriage or adoption. This attribute also carries prefixes or suffixes which are part of the family name, e.g. "de Boer", "van de Putte", "von und zu Orlow". Multiple family names, such as are commonly found in Hispanic countries, are recorded in the single family name property so that, for example, Miguel de Cervantes Saavedra's family name would be recorded as "de Cervantes Saavedra".	UC 1
given name	langString	1	The name(s) that identify the Person within a family with a common surname.	Usually a first name. Given to a person by his or her parents at birth or legally recognised as 'given names' through a formal process. All given names are ordered in one property so that, for example, the given name for Johann Sebastian Bach is "Johann Sebastian".	UC 1
identifier	Identifier	1	The unambiguous structured reference to the Person.	Examples include a national identification number, a student ID, national fiscal number, etc. We also refer to the eIDAS regulation on "electronic identification and trust services" and its mapping to the Core Person Vocabulary.	UC 1
is notified by	Public Organisation	0..*	It indicates the competent auhority notifying.
is point of contact for	Single Digital Entry Point	0..1	The Single Digital Entry point for which the person acts as contact point for all matters related.
is referred in	Order	0..*	It indicates the Order in which the host is referred.		UC 5
offers	Short Term Accomodation Rental Service	0..*	It indicates the rental service offered.		UC 4
provides	Evidence	0..*	It indicates the Evidence provided.		UC 1

Public Organisation

Definition: An Organization that is defined as being part of the public sector by a legal framework at any level.
Usage Note: Organizations which exist to provide services for its citizens and companies are called Public Organizations. The Public Organization class represents the organization. One organization may comprise several sub-organizations and any organization may have one or more organizational units. Each of these is described using the same properties and relationships.

This definition is consistent with the more detailed definition of a "public sector body" as given in the PSI Directive: "the State, regional or local authorities, bodies governed by public law and associations formed by one or several such authorities or one or several such bodies governed by public law". It further defines a body governed by public law as any body "(a) established for the specific purpose of meeting needs in the general interest, not having an industrial or commercial character; and (b) having legal personality; and (c) financed, for the most part by the State, or regional or local authorities, or other bodies governed by public law; or subject to management supervision by those bodies; or having an administrative, managerial or supervisory board, more than half of whose members are appointed by the State, regional or local authorities or by other bodies governed by public law".
Properties: For this entity the following properties are defined: address , alternative label , classification , description , establishes , has national coordinator , issues , preferred label , purpose , verifies .

Property	Range	Card	Definition	Usage
address	Address	1	The Address of a Public Organization.
alternative label	langString	0..*	An alternative or informal name(s) of a Public Organization, irrespective of language.
classification	Concept	0..*	The categorisation of the Public Organization.	As an example, the Publications Office of the European Union provides a Named Authority list of Organization Types which is appropriate for European institutions. Other classification schemes should be used at other levels of Public Organization.
description	langString	0..*	The textual description of the Public Organization.
establishes	Single Digital Entry Point	0..1	It indicates the Single Digital Entry Point being managed.
has national coordinator	Person	0..1	It indicates the Person appointed as national coordinator.
issues	Order	0..*	It indicates ther Order issued.
preferred label	langString	1..*	A preferred label is used to provide the primary, legally recognised name of the Public Organization, as defined in the ORG Ontology.	Refers to the official or legal name of a Public Organization. An organization may only have one such name in any given language. Primary names may be provided in multiple languages with multiple instances of the preferred label property.
purpose	Concept	0..*	This property describes the reasons of existence of an Organization.	The ORG ontology suggests that this property can also be thought of as meaning 'remit' or 'responsibility.' Ideally this will link to a COFOG code but where this isn't possible or appropriate, other controlled vocabularies may be used.
verifies	Evidence	0..*	It indicates the Evidence verified.

Registration Number

Definition: A unique identifier issued by the competent authority which identifies a unit in that Member State.
Subclass of
: Output
Properties: For this entity the following properties are defined: identifies , issue date , status , temporal .

Property	Range	Card	Definition	Usage	Use Case
identifies	Unit	1	The Unit identified by the Registration Number.		UC 1, UC 2, UC 4
issue date	DateTime	1	Date of formal issuance of the resource.		UC 1, UC 2, UC 4
status	Concept	1	The status of the Asset in the context of a particular workflow process.	A registration number can be valid, suspended or withdrawn.	UC 1, UC 2, UC 4
temporal	Period of time	0..1	It indicates the period of time associated.		UC 1

Registration Procedure

Definition: Any procedure by which hosts must provide specific information and documentation to the competent authorities in order to obtain a registration number enabling them to offer short-term accommodation rental services through online short-term rental platforms
Subclass of
: Public Registry Service
Properties: For this entity the following properties are defined: applies to , has cost .

	Property	Range	Card	Definition	Usage	Use Case
	applies to	Geometry	1	The area in which the registration procedure applies.		UC 3
	has cost	Cost	0..*	It indicates the costs related to the execution of a Public Service for the citizen or business related to the execution of the particular Public Service.		UC 1

Short Term Accomodation Rental Service

Definition: The short-term letting of a unit, provided for remuneration, whether on a professional or non-professional basis, on a regular or on a temporary basis, as further defined by national law.
Properties: For this entity the following properties are defined: provides access to .

	Property	Range	Card	Definition	Usage	Use Case
	provides access to	Online Short Term Rental Platform	1..*	It indicates the Online Short Term Rental Platform being accessed by the service.

Single Digital Entry Point

Definition: A gateway for the electronic transmission of data between online short-term rental platforms and competent authorities, ensuring timely, reliable and efficient data sharing processes
Properties: This specification does not impose any additional requirements to properties for this entity.

Unit

Definition

A furnished accommodation located in the Union that is the subject of the provision of a short-term accommodation rental service.

Usage Note

It does not include the following:

(a) hotels and similar accommodation including resort hotels, suite or apartment hotels ¦and motels as described in NACE Rev. 2, group 55.1 ('hotels and similar accommodation') and hostels as described in NACE Rev. 2, group 55.2 ('holiday and other short-stay accommodation') of Annex I to Regulation (EC) No 1893/2006 of the European Parliament and of the Council24;
(b) the provision of accommodation in camping grounds, recreational vehicle parks and trailer parks, as described in NACE Rev. 2 group 55.3 of Annex I to Regulation 1893/2006.

Properties

For this entity the following properties are defined: description , floor level , has authorization , has unit address , is authorization obtained , is offered on , is subject to authorization , number of bedrooms , occupancy , purpose , type , url .

Property	Range	Card	Definition	Usage	Use Case
description	langString	0..1	An account of the resource.	A textual description of the Unit.	UC 1, UC 2, UC 4
floor level	langString	0..1	The level of the floor of the Unit as textual description.		UC 1, UC 2, UC 4
has authorization	Document	0..1	It indicated the document attesting the authorization.		UC 1, UC 2, UC 4
has unit address	Address	1	The specific address of the Unit.		UC 1, UC 2, UC 4
is authorization obtained	Boolean	0..1	it indicates whether the host has obtained an authorisation for the Unit.		UC 1, UC 2, UC 4
is offered on	Online Short Term Rental Platform	0..1	The Online Short Term Rental Platform where the Unit is declared.		UC 2
is subject to authorization	Boolean	0..1	It indicates whether the Unit is subject to authorization.		UC 1, UC 2, UC 4
number of bedrooms	Integer	1	The maximum number of available bed places.		UC 1, UC 2, UC 4
occupancy	Integer	1	The maximum number of guests that the unit accommodates.		UC 1, UC 2, UC 4
purpose	langString	1	It indicates whether the unit is offered as a part or whole of the host's primary or secondary residence, or for other purposes.		UC 1, UC 2, UC 4
type	Concept	1	A classification of the unit.		UC 1, UC 2, UC 4
url	URL	0..1	URL of the item.		UC 4

Supportive Entities

The supportive entities are supporting the main entities in the Core Vocabulary. They are included in the Core Vocabulary because they form the range of properties.

Address

Definition: A spatial object that in a human-readable way identifies a fixed location.
Usage Note: An "address representation" as conceptually defined by the INSPIRE Address Representation data type: "Representation of an address spatial object for use in external application schemas that need to include the basic, address information in a readable way.".

The representation of Addresses varies widely from one country's postal system to another. Even within countries, there are almost always examples of Addresses that do not conform to the stated national standard. However, ISO 19160-1 provides a method through which different Addresses can be converted from one conceptual model to another.

This specification was heavily based on the INSPIRE Address Representation data type. It is noteworthy that if an Address is provided using the detailed breakdown suggested by the properties for this class, then it will be INSPIRE-conformant. To this very granular set of properties, we add two further properties:

- full address (the complete address as a formatted string)
- addressID (a unique identifier for the address). The first of these allows publishers to simply provide the complete Address as one string, with or without formatting. This is analogous to vCard's label property.

The addressID is part of the INSPIRE guidelines and provides a hook that can be used to link the Address to an alternative representation, such as vCard or OASIS xAL.

This class belongs to Core Location Vocabulary
Properties: For this entity the following properties are defined: address area , address ID , administrative unit level 1 , administrative unit level 2 , full address , land register , locator designator , locator name , post code , post name , post office box , thoroughfare .

Property	Range	Card	Definition	Usage
address area	langString	0..1	The name of a geographic area that groups Addresses.	This would typically be part of a city, a neighbourhood or village, e.g. Montmartre. Address area is not an administrative unit.
address ID	Literal	0..1	A globally unique identifier for each instance of an Address.	The concept of adding a globally unique identifier for each instance of an address is a crucial part of the INSPIRE data spec. A number of EU countries have already implemented an ID (a UUID) in their Address Register/gazetteer, among them Denmark. OASIS xAL also includes an address identifier. It is the address Identifier that allows an address to be represented in a format other than INSPIRE whilst remaining conformant to the Core Vocabulary. The INSPIRE method of representing addresses is very detailed, designed primarily for use in databases of addresses. Whilst data that is published in full conformance with the INSPIRE data structure can be made available using the Core Location Vocabulary the reverse is not true since the Core Vocabulary allows much greater flexibility. Many datasets that include address data as one piece of information about something else are likely to have that data in simpler formats. These might be tailored to the specific need of the dataset, follow a national norm, or make use of a standard like vCard. To provide maximum flexibility in the Core Vocabulary, whilst remaining interoperable with INSPIRE Address Guidelines (which EU Member States are obliged to use), the Core Location Vocabulary provides the extra property of full address and makes use of INSPIRE's addressID. The datatype of addressID is indicated as Literal (keeping backward compatibility with the old W3C specification) that can be typed differently, see more.
administrative unit level 1	langString	0..1	The name of the uppermost level of the address, almost always a country.	Best practice is to use the ISO 3166-1 code but if this is inappropriate for the context, country names should be provided in a consistent manner to reduce ambiguity. For example, either write 'France' or 'FRA' consistently throughout the dataset and avoid mixing the two. The Country controlled vocabulary from the Publications Office can be reused for this.
administrative unit level 2	langString	0..1	The name of a secondary level/region of the address, usually a county, state or other such area that typically encompasses several localities.	Values could be a region or province, more granular than level 1.
full address	langString	0..1	The complete address written as a string.	Use of this property is recommended as it will not suffer any misunderstandings that might arise through the breaking up of an address into its component parts. This property is analogous to vCard's label property but with two important differences: (1) formatting is not assumed so that, unlike vCard label, it may not be suitable to print this on an address label, (2) vCard's label property has a domain of vCard Address; the fullAddress property has no such restriction. An example of a full address is "Champ de Mars, 5 Avenue Anatole France, 75007 Paris, France".
land register	Dataset	0..1	The land register in which the Address is registered in.
locator designator	Literal	0..1	A number or sequence of characters that uniquely identifies the locator within the relevant scope.	In simpler terms, this is the building number, apartment number, etc. For an address such as "Flat 3, 17 Bridge Street", the locator is "flat 3, 17". The datatype of locatorDesignator is indicated as Literal (keeping backward compatibility with the old W3C specification) that can be typed differently, see more.
locator name	langString	0..1	Proper noun(s) applied to the real world entity identified by the locator.	The locator name could be the name of the property or complex, of the building or part of the building, or it could be the name of a room inside a building. The key difference between a locator and a locator name is that the latter is a proper name and is unlikely to include digits. For example, "Shumann, Berlaymont" is a meeting room within the European Commission headquarters for which locator name is more appropriate than locator.
post code	Literal	0..1	The code created and maintained for postal purposes to identify a subdivision of addresses and postal delivery points.	Post codes are common elements in many countries' postal address systems. One of the many post codes of Paris is for example "75000". The datatype of addressID is indicated as Literal (keeping backward compatibility with the old W3C specification) that can be typed differently, see more.
post name	langString	0..1	A name created and maintained for postal purposes to identify a subdivision of addresses and postal delivery points.	Usually a city, for example "Paris".
post office box	Literal	0..1	A location designator for a postal delivery point at a post office, usually a number.	INSPIRE's name for this is "postalDeliveryIdentifier" for which it uses the locator designator property with a type attribute of that name. This vocabulary separates out the Post Office Box for greater independence of technology. An example post office box number is "9383". The datatype of poBox is indicated as Literal (keeping backward compatibility with the old W3C specification) that can be typed differently, see more.
thoroughfare	langString	0..1	The name of a passage or way through from one location to another.	A thoroughfare is usually a street, but it might be a waterway or some other feature. For example, "Avenue des Champs-Élysées".

Catalogue

Definition: A catalogue or repository that hosts the Datasets or Data Services being described.
Reference in DCAT: Link
Properties: For this entity the following properties are defined: dataset , record , service .

Property	Range	Card	Definition	Usage
dataset	Dataset	0..*	A Dataset that is part of the Catalogue.	As empty Catalogues are usually indications of problems, this property should be combined with the next property service to implement an empty Catalogue check.
record	Catalogue Record	0..*	A Catalogue Record that is part of the Catalogue.
service	Data Service	0..*	A site or end-point (Data Service) that is listed in the Catalogue.	As empty Catalogues are usually indications of problems, this property should be combined with the previous property dataset to implement an empty Catalogue check.

Catalogue Record

Definition: A description of a Dataset's entry in the Catalogue.
Reference in DCAT: Link
Properties: For this entity the following properties are defined: primary topic .

	Property	Range	Card	Definition	Usage	Use Case
	primary topic	Catalogued Resource	1	A link to the Dataset, Data service or Catalog described in the record.	A catalogue record will refer to one entity in a catalogue. This can be either a Dataset or a Data Service. To ensure an unambigous reading of the cardinality the range is set to Catalogued Resource. However it is not the intend with this range to require the explicit use of the class Catalogued Record. As abstract class, an subclass should be used.

Catalogued Resource

Definition: Resource published or curated by a single agent.
Reference in DCAT: Link
Usage Note: For DCAT-AP, the class is considered an abstract notion.
Properties: This specification does not impose any additional requirements to properties for this entity.

Concept

Definition: A concept can be viewed as an idea or notion; a unit of thought. However, what constitutes a unit of thought is subjective, and this definition is meant to be suggestive, rather than restrictive.
Properties: This specification does not impose any additional requirements to properties for this entity.

Contact Point

Definition: Information (e.g. e-mail address,telephone number) of a person or department through which the user can get in touch with.
Usage Note: The Core Public Organization Vocabulary defines properties for telephone number, e-mail address and opening hours although it is noteworthy that the class is based on schema.org's ContactPoint class that has additional properties that some implementations may find useful.
Properties: For this entity the following properties are defined: has email , has telephone .

	Property	Range	Card	Definition	Usage	Use Case
	has email	Literal	1	An electronic address through which the Contact Point can be contacted.		UC 1
	has telephone	Literal	1	A telephone number through which the Contact Point can be contacted.		UC 1

Coordination Group

Definition: A group composed of the national coordinators of Single Digital Entry Point.
Subclass of
: Group
Properties: For this entity the following properties are defined: member .

	Property	Range	Card	Definition	Usage	Use Case
	member	Person	1..*	Indicates a member of a Group.

Cost

Definition: The Cost class represents any costs related to the execution of a Public Service that the Agent consuming it needs to pay.
Properties: For this entity the following properties are defined: currency , has value , identifier .

Property	Range	Card	Definition	Use Case
currency	Concept	1	The currency in which the Cost needs to be paid and the value of the Cost is expressed.	UC 1
has value	Double	1	A numeric value indicating the amount of the Cost.	UC 1
identifier	Literal	1	An Identifier for the Cost.	UC 1

Data Service

Definition: A collection of operations that provides access to one or more datasets or data processing functions.
Reference in DCAT: Link
Subclass of
: Catalogued Resource
Properties: For this entity the following properties are defined: serves dataset .

	Property	Range	Card	Definition	Usage	Use Case
	serves dataset	Dataset	0..*	This property refers to a collection of data that this data service can distribute.

Dataset

Definition: A conceptual entity that represents the information published.
Reference in DCAT: Link
Subclass of
: Catalogued Resource
Properties: For this entity the following properties are defined: dataset distribution .

	Property	Range	Card	Definition	Usage	Use Case
	dataset distribution	Distribution	0..*	An available Distribution for the Dataset.

Distribution

Definition: A physical embodiment of the Dataset in a particular format.
Reference in DCAT: Link
Usage Note: Bulk downloads should be encoded as a Distribution.
Properties: For this entity the following properties are defined: access service , has listing .

	Property	Range	Card	Definition	Usage	Use Case
	access service	Data Service	0..*	A data service that gives access to the distribution of the dataset.
	has listing	Unit	0..*	The reference to a unit offered for short-term accommodation rental services and published on an online short-term rental platforms website.

Document

Definition: A textual resource intended for human consumption that contains information, e.g. a web page about a Dataset.
Properties: This specification does not impose any additional requirements to properties for this entity.

Geometry

Definition: A shape or form of a Location.
Usage Note: This class defines the notion of "geometry" at the conceptual level, and it shall be encoded by using different formats (see usage note of the locn:geometry property). Can be a point, line or polygon, expressed using coordinates in some coordinate reference system.
Properties: For this entity the following properties are defined: coordinates , geometry type , latitude , longitude .

Property	Range	Card	Definition	Usage	Use Case
coordinates	String	0..1	A list of geographic coordinates that define the extent of the Geometry.	Can be expressed as longitude, latitude, elevation.	UC 3
geometry type	Concept	1	The classification of the Geometry.	Can be a point, line or polygon.	UC 3
latitude	String	0..1	The geographic coordinate that specifies the north / south position of the Geomerty on the Earth's surface.		UC 3
longitude	String	0..1	The geographic coordinate that specifies the east / west position of the Geometry on the Earth's surface.		UC 3

Group

Definition: A class of Agents.
Properties: This specification does not impose any additional requirements to properties for this entity.

Identifier

Definition: A structured reference that identifies an entity.
Usage Note: The Identifier class is based on the UN/CEFACT class of the same name and is defined under the ADMS namespace.
Properties: For this entity the following properties are defined: notation .

	Property	Range	Card	Definition	Usage	Use Case
	notation	Literal	1	A string of characters to uniquely identify a concept.		UC 1

Literal

Definition: A literal value such as a string or integer; Literals may be typed, e.g. as a date according to xsd:date. Literals that contain human-readable text have an optional language tag as defined by BCP 4715.
Properties: This specification does not impose any additional requirements to properties for this entity.

Location

Definition: A spatial region or named place. It can be represented using a controlled vocabulary or with geographic coordinates. In the latter case, the use of the Core Location Vocabulary16 is recommended, following the approach described in the GeoDCAT-AP specification.
Reference in DCAT: Link
Properties: For this entity the following properties are defined: bbox , centroid , geometry .

Property	Range	Card	Definition
bbox	Literal	0..1	The geographic bounding box of a resource.
centroid	Literal	0..1	The geographic center (centroid) of a resource.
geometry	Geometry	0..1	The corresponding geometry for a resource

Output

Definition: An output can be any resource - document, artefact - anything produced by the Public Service. In the context of a Public Service, the output provides an official document or other artefact of the Competent Authority (Public Organization) that permits/authorises/entitles an Agent to (do) something.
Usage Note: In some cases, the Output of one Public Service will be used as evidence to fulfil a requirement of another Public Service. Such relationships should be described in the associated Rule(s)
Properties: For this entity the following properties are defined: identifier , name .

	Property	Range	Card	Definition	Usage	Use Case
	identifier	Literal	1	An Identifier for the Output.		UC 1
	name	langString	1..*	The official Name of the Output.		UC 1

Period of time

Definition: An interval of time that is named or defined by its start and end dates.
Reference in DCAT: Link
Properties: For this entity the following properties are defined: beginning , end , end date , start date .

Property	Range	Card	Definition
beginning	Time instant	0..1	The beginning of a period or interval.
end	Time instant	0..1	The end of a period or interval
end date	Temporal Literal	0..1	The end of the period
start date	Temporal Literal	0..1	The start of the period

Public Registry Service

Definition: A Registry Service is a public service that creates, maintains and/or manages Base Registries or a Registry of Base Registries. This service, provided by public administrations, or by other organisations on their behalf, stores and provides basic information on authoritative data items such as people, companies, vehicles, licences, buildings, locations and roads.
Properties: For this entity the following properties are defined: description , has competent authority , has input , identifier , name , produces , produces .

Property	Range	Card	Definition	Usage	Use Case
description	langString	1..*	A free text Description of the Public Service.
has competent authority	Public Organisation	1	It links a Public Service to a Public Organization, which is the responsible Agent for the delivery of the Public Service.
has input	Evidence	0..*	It links a Public Service to one or more instances of the Evidence class.	In the case of STR, the Evidence is all information and documents provided by the host.	UC 1
identifier	Literal	1	A formally-issued Identifier for the Public Service.
name	langString	1..*	The official Name of the Public Service.
produces	Catalogued Resource	0..*	This property defines the output of the service as a data resource available and managed by a Base Registry Service.	The output must be also described as a dcat:Catalog, a dcat:Dataset or a dcat:DataService.
produces	Output	0..1	It links a Public Service to one or more instances of the Output class, describing the actual result of executing a given Public Service.	Outputs can be any resource, for instance a document, artefact or anything else being produced as a result of executing the Public Service.	UC 1

	Class	Definition
	Boolean	Boolean has the value space required to support the mathematical concept of binary-valued logic: {true, false}
	DateTime	Object with integer-valued year, month, day, hour and minute properties, a decimal-valued second property, and a boolean timezoned property.
	Double	The double datatype is patterned after the IEEE double-precision 64-bit floating point type [IEEE 754-1985].
	Integer	integer is derived from decimal by fixing the value of fractionDigits to be 0 and disallowing the trailing decimal point. This results in the standard mathematical concept of the integer numbers.
	langString	The class rdf:langString is the class of language-tagged string values. rdf:langString is an instance of rdfs:Datatype and a subclass of rdfs:Literal .
	String	The string datatype represents character strings in XML.
	Temporal Literal	rdfs:Literal encoded using the relevant ISO 8601 Date and Time compliant string and typed using the appropriate XML Schema datatype (xsd:gYear, xsd:gYearMonth, xsd:date, or xsd:dateTime).
	Time instant	A temporal entity with zero extent or duration
	URL	A uniform resource locator (URL), colloquially known as an address on the Web,[1] is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it.

Use cases

The below sequence diagram illustrates how the different entities interact between each other. The sequence diagram is then divided in use cases described below.