MDG_DI
Table of contents
1. Common Structure
The property gmd:identificationInfo may take either gmd:MD_ServiceIdentification or gmd:MD_DataIdentification. Following properties may appear regardless the choice.
1.1. citation
The
citation
element is a structure of class CI_Citation, which describes how the dataset should be cited. The best-known element is citation/*/title
, which is the title that the dataset, document or service is known or cited by. It should be brief and summarize the contents.Searches of the WIS metadata catalogue include the title by default, and the title is the first information that users see when assessing whether the metadata record contains information of relevance to them.
See MDG_DO for guidelines for writing good text for the title.
1.2. abstract
See MDG_DO for guidelines for writing good text as the abstract.
1.3. status
The
status
element is optional, but the standard says we can use the MD_ProgressCode value completed
to indicate that the update of the resource has completed.1.4. pointOfContact
See MDG_Contact.
1.5. resourceMaintenance
This element is optional, but it can be used to indicate information about the maintenance or update of the resource including frequency of update.
1.6. graphicOverview
This element is optional, but it can be used to point to the thumbnail picture summarizing the content of the dataset.
1.7. resourceFormat
This element is optional. See MDG_DIS for guidance on usage.
1.8. descriptiveKeywords
This element is mandatory in WIS Discovery Metadata. See MDG_Spec1 for WMO_CategoryCode.
1.9. resourceConstraints
This element is mandatory in WIS Discovery Metadata for GTS bulletins. See MDG_Spec1 for data policy and GTS priority.
2. MD_DataIdentification
Following elements are allowed in class MD_DataIdentification. WIS Discovery Metadata standard does not use MD_ServiceIdentification.
2.1. spatialResolution
This element is optional, and can be used to indicate horizontal resolution of the dataset.
2.2. language
This element can be used to indicate language of text content of the dataset.
2.3. characterSet
This element can be used to indicate character encoding of text content of the dataset.
2.4. topicCategory
This element is mandatory for WIS Discovery Metadata. More than one code can be chosen.
2.5. extent
This element is mandatory for WIS Discovery Metadata describing geographical dataset. Typically the bounding box is described to give smallest range of latitude and longitude to cotain the dataset.