.. _typesOfResources:

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What can I find in the CLARIN:EL central inventory?
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The `CLARIN:EL <https://inventory.clarin.gr/>`_ infrastructure includes Language Resources and Technologies (LRTs), which can be further classified according to their content into:
   
* **corpora** a.k.a datasets: collections of text documents, audio transcripts, audio and video recordings, etc. (for the corpora which can be used for processing see :ref:`here<Processable>`), 

* **lexical/conceptual resources**, comprising computational lexica, gazetteers, ontologies, term lists, etc. 

* **tools & services**: any type of software used for LT processing (for the services integrated in the infrastructure see :ref:`here<Process>`), and 

* models & computational grammars, collectively referred to as **language descriptions**.
   
The following image depicts the taxonomy of resources in relation with other entities, such as the actor -i.e. the creator, contributor or annotator- who can be a person, a group of people, or an organization. 

.. image:: elgSchemaOverview.png
    :width: 1200px

.. _resourceCategories:

Typically a resource consists of a description (the metadata record) and content files (e.g. the dataset for a corpus, the software for a tool etc.). A **description** is a sine qua non condition for a resource to be in the central inventory. However, a description may or may not be accompanied by content files. Therefore, the following combinations exist: 

1. Resource descriptions along **with** content files, 

   1.1 available through `CLARIN:EL <https://inventory.clarin.gr/>`_, or
   
   1.2 available via an external link directing to another website or via an interface needed to access the resource.

2. Resource descriptions **without** content files, which are

   2.1 **for information purposes only** (the content files will be uploaded later), or

   2.2 `metaresources <https://inventory.clarin.gr/search/?meta_resources_initial_page__term=Metaresources>`_ (there are no content files to be uploaded); these include bibliographies, conference proceedings, etc. 

As concerns resources **with** content files, you can find out :ref:`here<Accessible>` the conditions under which they are accessible. 

.. tip:: See :ref:`here<HowTo>` some important information on creating and sharing resources via the CLARIN:EL infrastructure.