In the face of growing programmatic responsibilities and budgetary pressures, the immunization information systems (IIS) community is looking for new ways to cost-effectively improve system functionality. By engaging in joint development—i.e., collaborative efforts that result in a shared solution or other resource—the IIS community can collectively develop common solutions to common problems. This report seeks to provide a roadmap for standardizing methods, harmonizing best practices and reducing costs using strategies that allow all stakeholders to benefit from the collective wisdom of the IIS community. Though this report focuses specifically on joint development in relation to IIS, the concepts and best practices laid out in the report could easily be applied to other public health program areas.