Hi: Recently, the representatives of the main Invenio 2 development teams get together to discuss the road map to Invenio 3. The following diagram summarises our common vision:
http://simko.home.cern.ch/simko/tmp/invenio-3-roadmap-2015-04-01/invenio-3-vision.png You can see the big topics outlined in the map: the move towards (1) new data model and (2) elasticsearch; continued (3) separation of Invenio into a set of independent packages; and (4) progressive renaissance of legacy modules by fully reinventing them in the new ecosystem. Another part of the map focuses on processes inherent in the move: nice defaults to drive easy adoption, better documentation and rich test suite to empower people, promoting cross-team sprints for topics of general interest, etc. To borrow a chess terminology, the above "strategic" map will be completed by several "tactical" maps discussing how do we get there concretely. As an example, the data model topic is described in detail here: (WIP) http://simko.home.cern.ch/simko/tmp/invenio-3-roadmap-2015-04-01/invenio-3-data-model.png More to follow in the coming weeks. Best regards -- Tibor Simko