• Table of contents
• Common Data Model
  • Scope
  • Model Details
    • CDM Version 1.0
    • Current Working Verion - towards CDM Version 2.0
  • Feedback
    • To Do Notes
    • Modelling Guidelines
  • Partner
  • Background Information

Common Data Model¶

The Common Data Model (CDM) is the domain model for the core EDIT components. The CDM is primarily based on the TDWG Ontology But other models and standards (see TaxonomicDataStandards, BibliographicalDataStandards, SpecimenOrObservationStandards) have influenced the modelling too.

Scope¶

Basically the CDM covers all the data exchanged in the platform. As most applications require additional data, options to extend the model need to be provided.

The CDM v1.0 covers the following object types (classes), grouped by packages:

[!Model|Overview.gif!]

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Model Details¶

CDM Version 1.0¶

The first version of the CDM has been completed and CDM UML 1.0 reached. The modelling was done with Enterprise Architect and resulted in annotated UML class diagrams. The model is also available for download: edit_cdm.eap.

Additionally to the UML and Java documentation we maintain a CdmFaq.

Current Working Verion - towards CDM Version 2.0¶

Since the first version of the CDM was purely modelled in UML with implementation in mind, but no real world use yet, implementing the model in Java code will require minor changes all over. A stable second version of the CDM is expected for 4Q/2008.

Since the freeze of version 1.0 we are primarily maintaining the model in the source:trunk/cdmlib/cdmlib-model/src/main/java/eu/etaxonomy/cdm/model and derive the UML documentation from Enterprise Architect from there using EA's import source-code feature that synchronizes classes by namespace (in EA7 project browser "Common Data Model"-"Java Model" -> right click ->Code Engineering->Import Source Directory).

The latest documentation of the post-version1 model can be found in JavaDocs:cdmlib-model. We also keep track of the major CdmChanges.

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Feedback¶

This wiki describes the latest stage of the modelling efforts. Discussions are being held on a mailing list dedicated only to the CDM:

cdm-edit@mnhn.fr

The list has a public online archive that stores the discussions so decisions can be tracked back in time. We invite anyone to participate in the discussion, you can subscribe to the mailing list through the webinterface of the archive:

https://webmail.mnhn.fr/wws/arc/cdm-edit

We like to ask people posting to the list to stick to the following common rules to keep the discussion organised and create threads about a single subject in the archive later:

• write a separate post for every major subject you like to discuss

• Reply to previous posts without changing the subject line

• start a new post if the subject of a thread changes

To Do Notes¶

All notes regarding changes or additions to the CDM are managed with tickets in TRAC or through CDM UML 2.0.

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Modelling Guidelines¶

• BestPractices - best practices for the EDIT UML modelling and coding conventions for developers

• OntologyModelling - general remarks and links to OWL

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Partner¶

We try to collaborate with other projects outside of EDIT to base its development on a stable long-term perspective. Our main collaborators so far are:

• CATE project

• PESI

  • Euro+Med
  • Fauna Europaea
  • ERMS

• Key2Nature

Background Information¶

• TaxonomicGlossary - general taxonomic & nomenclatural glossary

• ZoologicalAdaptation - changes required for the BerlinModel to deal with zoological data

• ZooCode - the difference of the zoological code compared to the botanical code

• NomenclaturalStatus - descriptions of the different nomenclatural status codes both for botany and zoology

• TaxonomicDataStandards - other taxonomic models and standards

• BibliographicalDataStandards - bibliographical models and standards