1. Subgroup Costs Models and Policies WDS Working group Data Publication

2. Scientific credits for data sharing Scientific credits are needed as a carrot for researchers to stimulate data sharing Data publication at different levels: Citability of deposited data (persistent identifier, conditions of use) Basic data publication within the deposit workflow of a repository (reviews by users) Full swing publication in a data journal Different cost models and players involved Basic prerequisite for all is long-term data storage in TDRs

3. Questions to be answered What are the basic costs long-term storage? What are the extra costs of the different levels of data publication? How and by whom should these costs be funded?

4. Approach Gaps analysis (lot of information is already available) Best practices at the different levels Recommendations aimed at the different stakeholders (business model)