The posps web service defines an interface between a point of sale (POS) and the pharmacy IT system (PS) backend, with the PS as server. The aim of the web service is to reuse the business logic and data storage which already exist in the pharmacy IT systems for new kinds of POSs. A POS which is newly integrated into the pharmacy can thus present the full functionality and knowledge of the already installed pharmacy system for the pharmacist. There is no need to redundantly store and update data across systems and no danger of miscalculations due to different business rules implemented in the systems.
The interface includes the following functions:
To fully integrate the visavia into the pharmacy, it needs to interface with its IT system just like the conventional points of sale do. None of the existing interfaces (to the pharmacy robot or web shops) fit all aspects of the interaction between the visavia and a PS. Therefore, Rowa has proposed the posps web service as the standard for an interface between a POS such as the visavia and the pharmacy IT systems.