If you apply the principles of the Agile Manifesto [1] inside the TOGAF [2] framework you have the start of a foundation for an Open Enterprise. Over time this site will expound on this concept and many others to fill in the gaps of this broad statement.
You never know what could be possible for your enterprise unless you speak openly at all levels.
You never know what could be possible for your enterprise unless your systems move data openly at all levels.
You never know what could be possible for your enterprise unless you stay OPEN!
References:
[1] https://www.scrumalliance.org/resources/agile-manifesto
[2] https://www.opengroup.org/togaf