[Developing, Evaluating and Implementing Digital Health Interventions Part II - Discussion Paper of the Digital Health Working Group of the German Network for Health Services Research (DNVF)].

The methodological challenges of evaluating digital interventions (DI) for health services research are omnipresent. The Digital Health Working Group of the German Network for Health Services Research (DNVF) presented and discussed these challenges in a two-part discussion paper. The first part addressed challenges in definition, development and evaluation of DI. In this paper, which represents the second part, the definition of outcomes, reporting of results, synthesis of evidence, and implementation are addressed as methodological challenges of DI. Potential solutions are presented and the need to address these challenges in future research are discussed.