B.5.2. Architecture of the system: an overview

The IUCLID data model consists of two distinct parts:

B.5.2.1. Static sections

The static part of the data model is used to store data on the following IUCLID data sections:

  • Legal entities

  • Sites

  • Reference substances

  • Substances (section 0.1 - 3.9)

  • Mixtures ( section 0.1-3.10)

  • Templates (header only)

  • Dossiers ( header only)

  • Categories

  • Annotations

The data structure of this part of the data model is considered static because it cannot be adapted by a simple configuration step (to be executed centrally by the IUCLID Management Group). Any change to the data model (new fields, new data types etc.) would necessitate a new roll-out of IUCLID.

Note

The static part was introduced because the simplification in terms of performance and management clearly offset the more complicated business of one day updating the relatively stable data model.

B.5.2.2. Configurable sections

The configurable part of the data model is used to store data on the following IUCLID data sections:

  • Endpoint study records (i.e. section 4 - 10)

  • Endpoint summary records (i.e. section 4 - 10)

  • Additional information (i.e. section 11 - 13)

The advantage of the configurable sections is that data model modifications like the following are simple configuration steps (to be executed by the IUCLID Management Group):

  • Adding data entry fields

  • Adding new sections

  • Extending picklists

  • Adding new Dossier templates

Note

Such data model modifications can be published and distributed by the IUCLID Management Group as Plug-ins. Once a new configuration plug-has been activated in a IUCLID installation, the extended data structure is available. No full-scale new deployment and roll-out is needed.