Purpose The aim of this report is to define the IT architecture that will be needed to support the management, discovery and delivery of the National Library of Australia’s collections over the next three years. The current architecture has enabled the Library to develop a significant digital library capability over the last decade. Now the burden of maintaining and supporting existing systems and services is increasingly hindering us from bringing new services online, improving the user experience, exploring new ideas or responding to technological change. In the meantime, enormous changes are occurring in the broader environment.