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P Pharow

Publications and source records attributed to P Pharow.

7 recordsLinked to original sources
PubMed2006

Semantic interoperability--HL7 Version 3 compared to advanced architecture standards.

OBJECTIVES: To meet the challenge for high quality and efficient care, highly specialized and distributed healthcare establishments have to communicate and co-operate in a semantically interoperable way. Information and communication technology must be open, flexible, scalable, knowledge-based and service-oriented as well as secure and safe. METHODS: For enabling semantic interoperability, a unified process for defining and implementing the architecture, i.e. structure and functions of the cooperating systems' components, as well as the approach for knowledge representation, i.e. the used information and its interpretation, algorithms, etc. have to be defined in a harmonized way. Deploying the Generic Component Model, systems and their components, underlying concepts and applied constraints must be formally modeled, strictly separating platform-independent from platform-specific models. RESULTS: As HL7 Version 3 claims to represent the most successful standard for semantic interoperability, HL7 has been analyzed regarding the requirements for model-driven, service-oriented design of semantic interoperable information systems, thereby moving from a communication to an architecture paradigm. The approach is compared with advanced architectural approaches for information systems such as OMG's CORBA 3 or EHR systems such as GEHR/openEHR and CEN EN 13606 Electronic Health Record Communication. CONCLUSION: HL7 Version 3 is maturing towards an architectural approach for semantic interoperability. Despite current differences, there is a close collaboration between the teams involved guaranteeing a convergence between competing approaches.

Computer Communication Networks↗
PubMed2001

Securing interoperability between chip card based medical information systems and health networks.

Health information systems supporting shared care are going to be distributed and interoperable. Dealing with sensitive personal medical information, such information systems have to provide appropriate security services, allowing only authorised users restricted access rights to the patients' data according to the 'need to know' principle. Especially in healthcare, chip card based information systems occur in the shape of patient data cards providing informational self determination and mobility of the users as well as quality, integrity, accountability, and availability of the data stored on the card, thus improving the shared care of patients. The DIABCARD project aims at the implementation and evaluation of a chip card based medical information system (CCMIS) for facilitating communication and co-operation between health professionals in different organisations or departments caring the same patient with diabetes as an example. In co-operation with the EC-funded TrustHealth(2) project, communication and application security services needed are provided like strong authentication as well as the derived services such as authorisation, access control, accountability, confidentiality, etc. The solution is based on Health Professional Cards and Trusted Third Party services. In addition to the secure handling of the patient's chip card and data in DIABCARD workstations, the secure communication between these workstations and related departmental systems has been implemented. Based on the results of this feasibility study, an enhanced security services specification for the DIABCARD example of a CCMIS is provided which will be implemented in the framework of a health network being established in the German federal state Bavaria. Beside the preferred solution of a combination of Patient Identification Card and Patient Data Card, lower level alternatives using card-verifiable certificates are explained in some details. Finally, a few legal issues, future trends like the XML standard set and their implications for the solution presented as well as for distributed health information systems in general are shortly discussed.

Computer Security↗
PubMed2001

Enhanced security services for enabling pan-European healthcare networks.

Establishing the Shared Care environment, communication and co-operation between healthcare establishments involved must be provided in a trustworthy way. This challenge is even more important for health networks using the Internet. In that context, services assuring both communication security and application security must be provided. Especially in the e-health environment, additionally to identity-related services certifying data or properties of principals, trustworthiness or authorisation for objects, components and functions must be established by Trusted Third Parties (TTP). Within the European Commission's Information Society Technologies (IST) Programme, the HARP project provides the "HARP Cross-Security Platform (HCSP)" needed in the open Web environment of pan-European networks. The solutions are under implementation and evaluation in the German ONCONET enabling a trustworthy framework for both health professionals and patients as well as supporting clinical studies.

Computer Security↗
PubMed2000

Secure interoperability of patient data cards in health networks.

In the healthcare area, chip card based information systems occur in the shape of patient data cards providing informational self determination and mobility of the users as well as quality, integrity, accountability, and availability of the data stored on the card, thus improving the shared care of patients. Dealing with sensitive personal medical information, shared care information systems have to provide appropriate security services, only authorized users allowing restricted rights to the patients' data according to the "need to know" principle. The DIABCARD project aims the implementation and evaluation of a chip card based medical information system (CCMIS) for facilitating communication and co-operation between health professionals in different organisations or departments caring the same patient with Diabetes as an example. In co-operation with the EC-funded TrustHealth project, the communication and application security services needed are provided as strong authentication and the derived services like authorization, access control, accountability, confidentiality etc. The solution is based on Health Professional Cards and Trusted Third Party services. Besides the secure handling of the patient's chip cart in DIABCARD workstations, also the secure communication between these workstations and related departmental systems has been implemented. Finally, a few legal issues, future trends like the XML standard set and their implications for the solution presented as well as for distributed health information systems in general are shortly discussed.

Computer Communication Networks↗
PubMed1999

Communication security in open health care networks.

Fulfilling the shared care paradigm, health care networks providing open systems' interoperability in health care are needed. Such communicating and co-operating health information systems, dealing with sensitive personal medical information across organisational, regional, national or even international boundaries, require appropriate security solutions. Based on the generic security model, within the European MEDSEC project an open approach for secure EDI like HL7, EDIFACT, XDT or XML has been developed. The consideration includes both securing the message in an unsecure network and the transport of the unprotected information via secure channels (SSL, TLS etc.). Regarding EDI, an open and widely usable security solution has been specified and practically implemented for the examples of secure mailing and secure file transfer (FTP) via wrapping the sensitive information expressed by the corresponding protocols. The results are currently prepared for standardisation.

Computer Communication Networks↗
PubMed1998

Results of European projects improving security of distributed health information systems.

The challenge for improvement of quality and efficiency of health care systems causes the development and promotion of "Shared Care" in all developed countries. Distribution, decentralisation, and specialisation of health care must be joint with an extended communication and co-operation between the different care providers. Fulfilling the shared care paradigm, care supporting health information systems has to be distributed, interoperable, and scaleable too. Communication and co-operation across organisational, regional, and even national boundaries is bearing high threats and risks regarding security and privacy of medical and personal information of both patients and health professionals. Involved in several security projects funded by the European Union, the Medical Informatics Department and the regional Clinical Cancer Registry at the University of Magdeburg are piloting a secure regional distributed medical record system for cancer diseases. Requirements, solutions, and experiences are presented and discussed.

Computer Communication Networks↗