Ruisdael Data Catalog - PoC - presentation 2024.09.06: Difference between revisions
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[https://tud365-my.sharepoint.com/:v:/r/personal/cvannoord_tudelft_nl/Documents/Opnamen/Presentation%20proof%20of%20concept%20Ruisdael%20data%20catalog-20240906_100307-Meeting%20Recording.mp4?csf=1&web=1&e=IzqEaR PoC presentation recording - 2024.09.06] | |||
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'''suitable to build and maintain a data catalog''' | '''suitable to build and maintain a data catalog''' | ||
* out-of-the-box content management system - Wiki | |||
* anyone with an account can enter and edit content | * anyone with an account can enter and edit content | ||
* anyone with or without an account the view the content | * anyone with or without an account the view the content | ||
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=Displaying / Searching data= | =Displaying / Searching data= | ||
'''Via query based, dynamic tables. Or other outputs formats, ie. [[Datasets Map]]''' | '''Via query based, dynamic tables''' ie. [[Main Page]]. Or other outputs formats, ie. [[Datasets Map]]''' | ||
Latest revision as of 12:27, 6 September 2024
https://ruisdael-catalog.citg.tudelft.nl/
PoC presentation recording - 2024.09.06
Goals of Data Catalog
- index and describe every dataset produced within Ruisdael Observatory, independently from where it is stored or published
- discover where each dataset is published/stored (via Property:servedBy which points to Category:DataService instances)
- identify the contact-point of each dataset, special relevant for unpublished datasets (via Property:contactPoint which points to Category:Foaf:Person instances)
Wiki: collaborative editing content management system
suitable to build and maintain a data catalog
- out-of-the-box content management system - Wiki
- anyone with an account can enter and edit content
- anyone with or without an account the view the content
- forms and templates help guiding users' edits
- semantic properties and categories organize and describe content in machine-readable ways, allowing for structured queries and dynamic content aggregation
- edit-history function allows reverting pages' content to previous versions
The software: Mediawiki (MW)
- Open Source Software
- Powers all Wikipedia instances and Wikidata
- Markup language - easily converted to/from Markdown, HTML, ...
- API
- ecosystem of extensions: ie Page Forms VisualEditor SMW
The extension: Semantic Mediawiki (SMW)
- Semantic annotations via property::value pairs and classes (categories)
- User defined semantic properties, classes (categories), queries, controlled-vocabularies
- RDF export
Data Catalog structure (schema)
The wiki (Data Catalog) contents are structure loosely around DCAT-AP [1]
It uses of terms from the following vocabularies:
- Data Catalogue vocabulary (DCAT)[2]: MediaWiki:Smw_import_dcat
- Dublin Core Metadata Terms(DCMI-Terms)[3]: MediaWiki:Smw_import_dcterms
- Friend of a Friend (FOAF)[4]: MediaWiki:Smw_import_foaf
Organized, around the following categories:
More details in Help:Data_Catalog_Schema
Entering Data
From Main_Page#Ruisdael_Datasets
Create Dataset page with Form:Dataset
Or "Edit with Form" an existing page, ie Micro_Rain_Radar_(Metek)_at_Cabauw
Displaying / Searching data
Via query based, dynamic tables ie. Main Page. Or other outputs formats, ie. Datasets Map
Via search forms: Search Datasets
References
- ↑ "DCAT Application profile for data portals in Europe (DCAT-AP) is a specification based on the Data Catalogue vocabulary (DCAT) for describing public sector datasets in Europe." https://op.europa.eu/nl/web/eu-vocabularies/dcat-ap
- ↑ https://www.w3.org/TR/vocab-dcat-3/
- ↑ https://www.dublincore.org/specifications/dublin-core/dcmi-terms/
- ↑ http://xmlns.com/foaf/spec/