From Science Europe Data Glossary
Definition: digital sustainability encompasses a range of issues and concerns that contribute to the longevity of digital information.
Explanation: unlike traditional, temporary strategies, and more permanent solutions, digital sustainability implies a more active and continuous process. Digital sustainability concentrates less on the solution and technology and more on building an infrastructure and approach that is flexible with an emphasis on interoperability, continued maintenance and continuous development. Digital sustainability incorporates activities in the present that will facilitate access and availability of digital resources in the future.
See also: digital preservation; software sustainability; data archiving