README.md

Awesome Component Metadata Infrastructure (CMDI)

A curated list of services, tools and documentation for CLARIN's Component Metadata Infrastructure

Contents

• Web pages
• Guides and tutorials
• CMDI services
• Tools
• Specification Documents
• Publications
• Contribute

Web pages

Web pages about CMDI:

• CMDI home page - An introduction to CMDI and usage description for metadata modellers, authors and repository managers.
• FAQs - Frequently asked questions about metadata in CLARIN.

Guides and tutorials

• Video lecture: "CMDI explained" - Ten minute introduction to CMDI by Henk van den Heuvel.
  • Slides
• CMDI best practices guide - PDF with best practices for both modellers and authors, and a section on common approaches and problems.
  • Best practices schematron rules - For automated best practice compliance in records and component definitions.
• CMDI and granularity - PDF with guidelines with respect to metadata hierarchies and levels of description.

CMDI services

Core services

Essential services that form the operational core of the Component Metadata Infrastructure:

• Component Registry - Registry and editor for CMD components and profiles.
  • Documentation
• CLAVAS - CLARIN's vocabulary service used in CMDI.
• CCR - CLARIN's concept registry used in CMDI.

Central services

CMDI based services that are maintained and hosted centrally by CLARIN ERIC:

• VLO - The Virtual Language Observatory offers metadata based search and discovery for language resources and tools.
• Curation dashboard - Metadata quality control with up-to-date link checking.
• OAI-PMH harvest viewer - Latest harvest results for the VLO.

Tools

General

• CMD Toolkit - Contains the schemata, stylesheets and scripts that form the basis of CMDI.

Validation

• Component validator - A library ("CMDValidate") for validating CMD component specifications using XSD and Schematron.
• Instance validator - Java based utility for validating CMDI records.

Editing

• COMEDI - A web-based editor for CMDI records with storage and distribution facilities.
• CLARIAH CMDI Forms - A tweakable, web based editor for CMDI records (sources, runnable via Docker).

Conversion

• CLARIN metadata conversion stylesheets - A repository with stylesheets for conversion from various metadata formats to CMDI.

Distribution

• OAI harvest manager - Solution for harvesting a predefined set of endpoints, with support for flexible XSLT based processing pipelines and integration with the CLARIN centre registry.
• CLARIN OAI-PMH providers - List of endpoints of registered CLARIN centres that provide metadata.

Repository systems

• CLARIN DSpace - Adaptation of DSpace that supports CMDI and other CLARIN requirements and conventions, developed at the Institute of Formal and Applied Linguistics of the Charles University.
• TLA FLAT - Repository solution based on Islandora, developed at the Max Planck Institute for Psycholinguistics.

Specification Documents

CMDI 1.1

• XSD Schemas - Common schemas for CMDI 1.1.
  • General component schema
  • Minimal CMD validation

CMDI 1.2

• CMDI specification - Complete specification for CMDI 1.2.
  • Summary of changes - Executive summary of changes in CMDI 1.2 compared to CMDI 1.1.
• ISO 24622 - Language resource management. Component Metadata Infrastructure (CMDI)
  • ISO 24622-1:2015 - Part 1: The Component Metadata Model.
  • ISO 24622-2:2019 - Part 2: Component metadata specification language.
• XSD Schemas - Common schemas for CMDI 1.2.
  • Schema for the component specification
  • Schema for the record envelope

Publications

• Component Metadata Infrastructure - Book chapter (Windhouwer, M., & Goosen, T. (2022). Component metadata infrastructure. CLARIN: The infrastructure for language resources, 191-222).
  • Free digital copy - PDF version of the chapter (CC-BY).
• CMDI first aid kit - A printable booklet with helpful links for CMDI users.

Contribute

Contributions welcome! Read the contribution guidelines first.