"At HDIF, we want to share learning from our own experience to assist players in ICT4D to ensure we are not creating more stacks of unused hardware and limited viability which combine to create a larger wasteland of well-intended development projects. A broad set of donors and partners have combined to develop the Principles for Digital Development, which form a simple set of values that have helped HDIF understand our impact and establish whether we are setting partners on the best path for success. This White Paper is HDIF’s first formal publication sharing our initial insights and learning around the application of the Principles for Digital Development in Tanzania. We hope our learning will provide practice insights for the ICT4D community in Tanzania and abroad. By applying the principles to our work, we and our partners can assess their validity through 'learning by doing' and anticipate the challenges in scaling our innovations." (Foreword, page 2)