patient administration system. patient portal. lot1: the ive is the implementation of software solutions including all necessary (communication) interfaces around patients in order to further relieve the referring practices and employees in the clinic. the solution will be introduced gradually. starting in one department and then rolling out across the entire clinic. it administrators, referrers and hospital staff are trained separately and application-specifically to ensure patients maximum support in the application. in the course of implementing one of the admission and treatment management systems, a patient diary app must be implemented at the same time, which supports the patients both before and during their stay, but also after their stay in the clinic. lot 2: a digitized and systematic transfer of the patients to the follow-up or further care providers should be set up. the systematization of the transfer enables a smoother and faster transfer to the patient's follow-up and further care providers. in addition to avoiding unnecessary idle times, data protection requirements are also systematically observed. from the point of view of the employees in the social service, the communication effort that has arisen so far is significantly reduced by the improved communication. in addition, the quality of care for patients is improved. lot 3: a hospital information system (his) is the class of the entirety of all information processing systems of information technology for the collection, processing and transfer of medical and administrative data in the hospital. the his includes server functions, workplace functions and mobile data provision functions. in a broader sense, his also includes conventional methods of paper-d documentation and voice communication. at the latest with the use of the digital patient file, high availability of the it systems is absolutely necessary. medical facilities have to arm themselves against complex disruptions (e.g. his failure, failure of the subsystems, etc.), in addition, patient lists (e.g. gate, admission and discharge lists, etc.) as well as patient-related forms and findings can be printed out locally.