VOResource xs vr Implementation of an XML Schema describing a resource to be used in the Virtual Observatory Project. Based on "Resource Metadata for the Virtual Observatory", Version 0.8, February 2002 by Bob Hanisch et al. Diff 0.05-0.06: The Topologi tool apparently doesn't like annotations of global elements referenced locally. Although, this does not appear to be in violation of the XML Schema standard, they have been commented out for the time being. Diff 0.06-0.1: Changed target namespace to http://www.ivoa.net/xml/prop/VOResource. Diff 0.8-0.1: Updated for RM v0.8; jumped version # to match RM. Diff 0.8.1-0.8: A proposed structuring of the RM model for v0.9 Diff 0.8.2-0.8.1: "Manager" changed back to "Publisher"; "Subject" contents elevated one level, "Topic" changed back to "Subject"; more documentation; "ResourceKey" made mandatory; added extensible relationships. Diff 0.8.3-0.8.2: fix bug in def of VOResource; set minimum mandatory elements; added LogicalIdentifier; added admin attributes to Resource: created, updated, status; moved Description, ReferenceURL, Source to Summary element; added Source; correct misspelling of categoryType; added "Other" type; make RelatedTo a ResourceReferenceType; dropped ManagedResourceType; dropped Contact/Address,Phone; added role attribute to Date; dropped ProjectRef,DataCollRef,ServiceRef,OrgRef; Interface overhaul: move URL (as AccessURL) up as common child, move ParamHTTPGet to VODataService (as ParamHTTP). Diff 0.9-0.8.3: primarily version update to WD status; more vm tagging. Diff 0.10-0.9: restructured to replace substitution groups with xsi:types. The schema no longer defines any global elements; only global types. (Applications are responsible for defining root elements.) Furthermore, the element names and hierarchy have been modified to more closely match that of the RM document. The use of the generic inclusion layer represented by VOResourceRelType.xsd has been eliminated due to archiving complications; it may be brought back when this schema reaches version 1.0. Any entity that is describable and identifiable by a IVOA Identifier. Title the full name given to the resource a short name or abbreviation given to the resource. This name will be used where brief annotations for the resource name are required. Applications may use to refer to this resource in a compact display. One word or a few letters is recommended. No more than sixteen characters are allowed. Identifier Unambiguous reference to the resource conforming to the IVOA standard for identifiers Information regarding the general curation of the resource Information regarding the general content of the resource The date this resource metadata description was created. The date this resource metadata description was last updated. a tag indicating whether this resource is believed to be still actively maintained. resource is believed to be currently maintained, and its description is up to date (default). resource is apparently not being maintained at the present. resource publisher has explicitly deleted the resource. a short name or abbreviation given to something. This name will be used where brief annotations for the resource name are required. Applications may use to refer to this resource in a compact display. One word or a few letters is recommended. No more than sixteen characters are allowed. Information regarding the general curation of a resource Publisher Entity (e.g. person or organisation) responsible for making the resource available Creator The entity (e.g. person or organisation) primarily responsible for creating the content or constitution of the resource. Contributor Entity responsible for contributions to the content of the resource Date Date associated with an event in the life cycle of the resource. This will typically be associated with the creation or availability (i.e., most recent release or version) of the resource. Use the role attribute to clarify. Label associated with creation or availablilty of a version of a resource. Information that can be used for contacting someone with regard to this resource. the name of a potentially registered resource. That is, the entity referred to may have an associated identifier. The URI form of the IVOA identifier for the resource refered to Information that can be used for contacting someone the name or title of the contact person. This can be a person's name, e.g. "John P. Jones" or a group, "Archive Support Team". the contact mailing address All components of the mailing address are given in one string, e.g. "3700 San Martin Drive, Baltimore, MD 21218 USA". the contact email address the contact telephone number Complete international dialing codes should be given, e.g. "+1-410-338-1234". The entity (e.g. person or organisation) primarily responsible for creating something the name or title of the creating person or organization Users of the creation should use this name in subsequent credits and acknowledgements. URL pointing to a graphical logo, which may be used to help identify the information source A string indicating what the date refers to. While this vocabulary is uncontroled, recognized strings include "creation", indicating the date that the resource itself was created, and "updated", indicating when the resource was updated last. The default value, "representative", means that the date is a rough representation of the time coverage of the resource. Note that this date refers to the resource; dates describing the metadata description of the resource are handled by the "created" and "updated" attributes of the Resource element. Information regarding the general content of a resource Subject List of topics, object types, or other descriptive keywords about the resource. Terms for Subject should be drawn from the IAU Astronomy Thesaurus (http://msowww.anu.edu.au/library/thesaurus/). Description An account of the nature of the resource The description may include but is not limited to an abstract, table of contents, reference to a graphical representation of content or a free-text account of the content. Source a bibliographic reference from which the present resource is derived or extracted. This is intended to point to an article in the published literature. An ADS Bibcode is recommended as a value when available. URL pointing to a human-readable document describing this resource. Type Nature or genre of the content of the resource Subject Subject.ContentLevel Description of the content level or intended audience a description of a relationship to another resource. The reference format. Recognized values include "bibcode", refering to a standard astronomical bibcode bibcode (http://cdsweb.u-strasbg.fr/simbad/refcode.html). resource that does not fall into any of the category names currently defined. Collection of pointed observations Collection of bibliographic reference, abstracts, and publications Collection of derived data, primarily in tabular form Collection of scholarly publications under common editorial policy Collection of published materials (journals, books, etc.) Theoretical simulation or model Collection of observations covering substantial and contiguous areas of the sky A service that transforms data Collection of materials appropriate for educational use, such as teaching resources, curricula, etc. Collection of materials appropriate for public outreach, such as press releases and photo galleries Collection of materials that may be suitable for EPO products but which are not in final product form, as in Type Outreach or Type Education. EPOResource would apply, e.g., to archives with easily accessed preview images or to surveys with easy-to-use images. Animation clips of astronomical phenomena Artists' renderings of astronomical phenomena or objects Background information on astronomical phenomena or objects Compilations of basic astronomical facts about objects, such as approximate distance or membership in constellation. Historical information about astronomical objects Publication-quality photographs of astronomical objects Press releases about astronomical objects An organization that is a publisher or curator of other resources. A project that is a publisher or curator of other resources a query service for which response is a structured description of resources. Resource provides information appropriate for all users Resource provides information appropriate for use in elementary education (e.g. approximate ages 6-11) Resource provides information appropriate for use in middle school education (e.g. approximate ages 11-14) Resource provides information appropriate for use in elementary education (e.g. approximate ages 14-18) Resource provides information appropriate for use in community/junior college or early university education. Resource provides information appropriate for use in university education Resource provides information appropriate for supporting scientific research. Resource provides information of interest to amateur astronomers. Resource provides information appropriate for education at museums, planetariums, and other centers of informal learning. A description of the relationship between one resource and one or more other resources. the named type of relationship the name of resource that this resource is related to. A named group of one or more persons brought together to pursue participation in VO applications. According to the Resource Metadata Recommendation, organisations "can be hierarchical and range in size and scope. At a high level, an organisation could be a university, observatory, or government agency. At a finer level, it could be a specific scientific project, mission, or individual researcher." The main purpose of an organisation as a registered resource is to serve as a publisher of other resources. Subject the observatory or facility used to collect the data contained or managed by this resource. Subject Subject.Instrument the Instrument used to collect the data contain or managed by a resource. a resource that can be invoked by a client to perform some action on its behalf. a description of how a client invokes the service Since the Interface type is abstract, one must describe the interface using a subclass of Interface, denoting it via xsi:type. A description of a service interface. Since this type is abstract, one must use an Interface subclass to describe an actual interface. Additional interface subtypes (beyond WebService and WebBrowser) are defined in the VODataService schema. The URL (or base URL) that a client uses to access the service. How this URL is to be interpreted and used depends on the specific Interface subclass Editor's note: this element assumes that all registered services are inherently web based. A flag indicating whether this should be interpreted as a base URL, a full URL, or a URL to a directory that will produce a listing of files. The default value assumed when one is not given depends on the context. Assume a full URL--that is, one that can be invoked directly without alteration. This usually returns a single document or file. Assume a base URL--that is, one requiring an extra portion to be appended before being invoked. Assume URL points to a directory that will return a listing of files. A (form-based) interface intended to be accesed interactively by a user via a web browser. The accessURL represents the URL of the web form itself. To provide a metadata specific to a particular Service type, this type is usually extended and added as a child of the specific Service subclass. An IVOA identifier for a standard service. This provides a unique way to refer to a service specification standard, such as a Simple Image Access service. It assumes that such standard is registered and accessible. A URL that points to a human-readable document that describes the standard upon which a service is based.