To provide high quality healthcare service, all relevant information of a
patient is paramount. Most of the patient healthcare information is stored in disparate
electronic medical record (EMR) systems of healthcare providers such as general
practitioners (GP), specialists, hospitals etc. Integrating the existing heterogeneous
EMRs for data sharing is crucial. All existing integration solutions need the numerous
EMR software vendors to update their software to follow ever-changing messaging
standards, provided interfaces or other criterions. The cost and efforts of the enormous
amount of time required to negotiate with the large number of project participants for
upgrading existing systems is extremely high. Almost exclusively, software today
provides a graphical user interface (GUI) as the only method for users to access the
functionality of the software. In this chapter, we propose a model for automating
the procedure of operating the GUI based EMR and exchange information with
them without the need of updating the existing EMR systems. The model is called
parameterized GUI state model (PGUISM) which depicts the intrinsic logic of GUIs
and enables the automated process of writing and reading information to and from
EMR systems. --presented at the 19th International Conference on Information Systems Development, Prague, 25-27 August, 2010.