Chapter 7 Web Services
1. What are the major issues with existing HIMIS? Discuss why system interoperability is becoming a major concern for HMIS.
The major issue that the existing HIMIS faces is interoperability. The aim of making healthcare organizations nationwide as well as global has turned out to be an extremely regular talking point. Starting the ending of the year 2003, the British administration began to build up an automated healthcare organization on a nationwide level, entitled, the National Program for IT (NPFIT). NPFIT focuses on incorporate majority of the healthcare organizations and services founded in England and Wales. On the other hand, HIMIS was strictly postponed for years since a variety of issues; including data broadcasting, network restriction, data safety, and the hindrances for medicinal personnel to assist each other. At present, the issue of organization interoperability looks forward to having turned out to be gradually more important since there are an extensive amount of clinics in England and Wales that carry on various healthcares IT servicing representations. Numerous of these clinics have also constructed their individual HMIS and DBMS.
2. Discuss main components or protocols of Web services. Discuss how Web services could be fitted into or applied to HMIS.
The Web services technology is founded under certain components which include the establishment of disclosed standards and widespread infrastructure. These standards operate under three areas which are communication protocols, tune-up descriptions, and service detection. Each area of is specific by a disclosed standard. Generally, Web services comprise of two main technologies that are XML (extensible Markup Language) and SOAP (Simple Object Access Protocol), and two supporting technologies, namely WSDL (Web Services Description Language) and UDDI (Universal Description, Discovery, and Integration). Aiming at the foundation expertise of Web Services, SOAP is a platform self reliant protocol that employs XML to create remote process calls above HTTP. The web services could be installed and implemented into the activities of HIMIS through the SOAP message. It is normally put down in a clear and platform self reliant XML. HTTP was selected to broadcast SOAP since HTTP is an average protocol for transmitting information throughout the Internet. Another method to implement the web services in HIMIS is employing a thorough design of Web Service. Through the design, HIMIS can make their services official in UDDI. In this means, requests or service clients are then capable of finding or spotting the services that are of importance to them through UDDI. UDDI leads these service clients to applicable services consistent with the account of Web services in HIMIS.
3. Research potential advantages and disadvantages of Web services to HMIS. Discuss if there are any other effects or beneficial uses of Web services to HMIS besides as a solution for the HMIS interoperability issue.
Some of the advantages of web services to HIMIS include the developing of the planned system. Web services would be additionally appropriate than J2EE in the sense that certain characteristics from the NHS viewpoint, as well as general development, interoperability, scalability, and expenses would be decreased. In addition, more than a few HIMIS developers have articulated benefits in employing Microsoft .NET for health information technology expansion even ahead of Microsoft .NET packages were brought into the market. As a result, Microsoft .NET has been chosen as the stand for constructing the planned organization. The Web service idea also foresees a production of services that consecutively call for the accessibility of civic directories that could be employed in the registration and location of services. UDDI, through the web services, has other benefits to HIMIS that include supplying a device for service givers to promote their services in an average appearance and for service clients to question services of importance; in this manner they allow interoperability among services. The effect of assessment displayed that Web services allowed HIMIS to operate on cross-system stands, take advantage of roles and implementations developed by various programming languages, and swap the information across catalog schemes.
4. Discuss how feasible the Web services solution is for HMIS.
Web services can be advertized by HIMIS to deal with the interoperability issues. In comparison to other healthcare institutions, Web services can decrease progress and consumption time, reduce system completion expenses, lessen the upholding complication, and decrease HMIS development collapse risk. These characteristics formulate Web services appropriate for major schemes like NPFIT. Plainly put, Web service, as an innovative delivered middleware expertise, promises to deal with the HIMIS interoperability confrontation. Still, the expertise has not been officially implemented at HIMIS, distinct from recognized triumphant applications in e-business. To demonstrate Web services idea implementation, HIMIS can come up with an osseointegration scheme at a renowned hospital in the local state. It could be created and developed on the basis of the Web service skill, employing flowcharts and object-founded system expansion technique.
5. What are the challenges with the Web services solution? How these challenges could be overcome for future HMIS implementations
One of the challenges that web services solution is confronted with is System interoperability. On the basis of the background account, HIMIS would be needed to connect with different clinically appropriate caregivers like the GP, general practitioner, prosthetic clinician, and therapy clinician, who may be employing various policies on their desktops to have a right of entry to HIMIS for various aims. To put up with the requirements of these caregivers, HIMIS would call for the potential caregivers to inter-operate in the midst of different organizations like Microsoft Windows Systems and Linux. Another confrontation experienced includes Language interoperability. HIMIS will be obliged to put together roles of accessible and potential healthcare organizations. Largely, special organizations are built employing various technologies, mainly the applying of various programming languages. These challenges could be evaded through NHS buildings withholding numerous various patient documentation systems occupied throughout units that were built by self-governing software suppliers.
Reference
Grand Canyon University, Essentials of Health Care Finance, Arizona, 1949
