The on-boarding efforts in the depicted process and architecture are rather minimal compared to the set-up of current solutions. They might also need to be knowledgeable about their specific requirements regarding data protection if they decide to host their nodes using third party providers. As many companies already use various systems to draft contracts and share versions with each other, it is most feasible to integrate existing DMS with an underlying blockchain layer through suitable APIs. The user interface needs to be intuitive and easy-to-use, as a wide range of users from business to legal departments of infrastructure project initiators, contractors and sub-contractors will need to use the system in order to review, accept or modify contractual agreements.