CDL is an approach to lending in which libraries lend a digital copy of a physical resource in a “lend like print” manner. The Controlled Digital Lending by Libraries group, has set out three "core principles" of CDL on their website:
Ex Libris' goal is to enable libraries to incorporate CDL into their workflows if they choose to do so. CDL allows libraries to cater to patrons with differing needs and gives them the option to borrow books in a way which suits them.
In addition to CDL functionalities already existing within our solutions, Ex Libris is also planning to implement CDL within more of our products and has instituted a community based advisory panel of experts to help guide us in that process.