The Blue Obelisk mantra ODOSOS, Open Data, Open Source, Open Standards, is well known, and much cited too. Jean-Claude Bradley popularized the Open Notebook Science (ONS). This has always been nagging me a bit, because the CDK, Jmol, JChemPaint and other chemistry projects have done that for much longer, though we did not use notebooks as much, so called it just an open source project. It really is no different, IMO, though surely, there are differences.
Anyway, the key thing which ONS and CDK and Jmol share, is that they use an Open Notebook. Not every Open Source or Open Data project does. Actually, many scientific Open Source are not open Projects! They are more like the Cathedral than the wished-for Bazaar (see The Cathedral and the Bazaar). So, Open Source (science) projects are certainly not ONS projects by default!