Proposals should:

• Research and propose innovative approaches that utilise DBL features and functionalities, User eXperience, interoperability, data governance and the connection with other initiatives;
• Demonstrate the benefits of DBL in terms of e.g. productivity, collaboration across the construction ecosystem, resource efficiency, decarbonisation, safety and health, climate resilience;
• Consider both current and future opportunities to collect data from new technologies (e.g. sensors, real-time energy use, drones, 3D scanning) or existing and upcoming platforms (e.g. Sustainable product passports for construction materials) enabling additional data platforms. The DBL could link as well to those new data platforms, which will come with new possibilities and responsibilities in terms of data privacy and security;
• Research and develop common ‘languages’ – interfaces and protocols – to enable interoperability, data consistency (as for example through common European data spaces for the manufacturing sector to ensure enhanced access to privately held data, via industrial data platforms) and information exchange; introduce a Common Information Model for next generation DBL capitalizing on existing standards and proposing extensions for missing features;
• Address the problem of “data matching” and data verification. There is also a high potential for advanced technologies, such as blockchain, to support the alleviation of these issues and the application of such technologies should be explored;
• Consider developing or making use of data quality marking schemes.

The DBL “features” (e.g. digital interface, data syncing, etc.) and “functionalities” (services built around the DBL) should prioritise user-friendliness and a smart interface for end-users.
Proposals may address the DBL to any or all types of buildings and infrastructures as appropriate. Proposals should take into account User eXperience (UX) principles in order to stimulate the update of the building logbook and its use by construction professionals and building owners. Proposals should ensure that the functionalities offered by DBL and the corresponding benefits are easily understood by construction and building professionals as well as building owners.