There are a lot of tools available for characterisation. There are native NeXus tools, Apache Tika and Jhove2. As Nexus is a scientific data format, the issue here is which one of these tools is best at format identification and validation.
Other interested parties
Possible Solution approaches
- comparing native NeXus tools with Jhove2 and Apache Tika
The Nexus datasets from ISIS are not publicly accessible, so it is hard for developers to work/test with these particular datasets.
Native NeXus tools already provide characterisation functions, so there isn't really the need to use Jhove2 or Apache Tika unless more complex functions are required.
Free sample datasets available online herer
Reference to the appropriate Solution page(s), by hyperlink.