TASK 2. Browsing and making changes to ONS locally
In this page we will briefly explain how to browse and edit ONS using the software Protégé.
Protégé is one of the most widely used free and open-source ontology editor programs. It is supported by a wide and active community providing abundant sources for information on its usage (i.e. video tutorial, wiki pages, proper courses).
The first starting resource is the Protégé wiki pages ("home" and "getting started")) but there are also some video tutorial on Youtube, visually illustrating the basic functionality and usage.
Installation: Protégé can be installed locally following information and instruction here
Online version: Protégé can also be used as its online version, Web Protégé
To edit ONS locally using Protégé, the user first need to download the ontology raw file. This can be done in various ways:
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From the Github repository: the latest release version will always be located in enpadasi/Ontology-for-Nutritional-Studies/src/ontology/ (here). Only the .owl file is needed for importing ONS in Protégé, and this can be simply downloaded from here by right click -> save as
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From the Github repository: alternatively, you can download the whole master branch of ONS repository from the main page
- From Bioportal: Upon opening, the Bioportal summary page for ONS is shown, reporting download link for the OWL format
The downloaded OWL file can be directly opened in Protégé (from the main window of the program select File -> Open... and browse to the location of the .owl file). Protégé will open the main ontology file, and automatically fetch from the GitHub repository the external ontology imports.