The OpenCost project - Using repositories to achieve transparency in the transformation process to open access as part of the science economy

The "openCost" project introduces a standardized metadata schema developed in collaboration with libraries and international experts on publication costs. The schema contains metadata on payments and contracts related to publication, enabling the identification of hidden costs and providing a detailed breakdown of publication costs. The use of well-connected interfaces such as OAI-PMH enables efficient data exchange and harvesting by service providers. This approach not only increases the transparency of publication costs, but also promotes cross-institutional comparisons at national and international level, benefiting both the institutions involved and the funders.