E-health and healthcare enterprise information system leveraging service-oriented architecture.
ABSTRACT To present the successful experiences of an integrated, collaborative, distributed, large-scale enterprise healthcare information system over a wired and wireless infrastructure in National Taiwan University Hospital (NTUH). In order to smoothly and sequentially transfer from the complex relations among the old (legacy) systems to the new-generation enterprise healthcare information system, we adopted the multitier framework based on service-oriented architecture to integrate the heterogeneous systems as well as to interoperate among many other components and multiple databases. We also present mechanisms of a logical layer reusability approach and data (message) exchange flow via Health Level 7 (HL7) middleware, DICOM standard, and the Integrating the Healthcare Enterprise workflow. The architecture and protocols of the NTUH enterprise healthcare information system, especially in the Inpatient Information System (IIS), are discussed in detail.
The NTUH Inpatient Healthcare Information System is designed and deployed on service-oriented architecture middleware frameworks. The mechanisms of integration as well as interoperability among the components and the multiple databases apply the HL7 standards for data exchanges, which are embedded in XML formats, and Microsoft .NET Web services to integrate heterogeneous platforms.
The preliminary performance of the current operation IIS is evaluated and analyzed to verify the efficiency and effectiveness of the designed architecture; it shows reliability and robustness in the highly demanding traffic environment of NTUH.
The newly developed NTUH IIS provides an open and flexible environment not only to share medical information easily among other branch hospitals, but also to reduce the cost of maintenance. The HL7 message standard is widely adopted to cover all data exchanges in the system. All services are independent modules that enable the system to be deployed and configured to the highest degree of flexibility. Furthermore, we can conclude that the multitier Inpatient Healthcare Information System has been designed successfully and in a collaborative manner, based on the index of performance evaluations, central processing unit, and memory utilizations.
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ABSTRACT: This paper presents major challenges and lessons learned during the process of including and adapting modern medical informatics concepts in challenging circumstances of a health care organization in the Republic of Serbia. The processes of choosing the overall software architecture, application development and later software deployment are examined, and the most critical places (slow network, slow workstations, repetitive data entry, wrong data entered, inappropriate and complex GUI, and low IT knowledge of an end-user) are pointed out, and the general solving strategies are defined. The mentioned strategies are joined together as a general approach for maintaining a complete medical information system life-cycle. Eventually, this approach provides shorter training, efficient support during deployment, more comfortable and efficient work, and makes positive impact on adoption process. In a view of this, our main objective is to specify development and deployment guidelines that can be applied for the information systems developed in different developing countries facing similar problems.Computer Science and Information Systems 06/2013; 10(3):1429-1454. DOI:10.2298/CSIS120523056R · 0.58 Impact Factor
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ABSTRACT: In a globalised networked economy, collaborative networks (CNs) are formed to take advantage of new business opportunities. Collaboration involves shared resources and capabilities, such as e-Services that can be dynamically composed to automate CN participants’ business processes. Quality is essential for the success of business process automation. Current approaches mostly focus on quality of service (QoS)-based service selection and ranking algorithms, overlooking the process of service composition which requires interoperable, adaptable and secure e-Services to ensure seamless collaboration, data confidentiality and integrity. Lack of assessment of these quality attributes can result in e-Service composition failure. The quality of e-Service composition relies on the quality of each e-Service and on the quality of the composition process. Therefore, there is the need for a framework that addresses quality from both views: product and process. We propose a quality of e-Service composition (QoESC) framework for quality assessment of e-Service composition for CNs which comprises of a quality model for e-Service evaluation and guidelines for quality of e-Service composition process. We implemented a prototype considering a simplified telemedicine use case which involves a CN in e-Healthcare domain. To validate the proposed quality-driven framework, we analysed service composition reliability with and without using the proposed framework.Enterprise Information Systems 01/2014; DOI:10.1080/17517575.2013.879213 · 9.26 Impact Factor
Conference Paper: e-Health AON (Application-Oriented Networks)[Show abstract] [Hide abstract]
ABSTRACT: As the world is gearing up towards implementation of digital healthcare networking solutions, the solution roadmap for a national e-Health interconnection network infrastructure is in great demand. This paper first identifies the major benefits in interconnection services that are critical to universal deployment. Then it provides an overview of our e-Health AON (Application Oriented Network) approach that offers direct support to the aspects of interconnection services, operational management services, and security control services. To further achieve the desired effects, this paper presents performance validation plans to assist the realization of a universal e-Health application interconnection network.Computer Communications and Networks (ICCCN), 2013 22nd International Conference on; 01/2013