1.Architecture Design of Healthcare Software-as-a-Service Platform for Cloud-Based Clinical Decision Support Service.
Sungyoung OH ; Jieun CHA ; Myungkyu JI ; Hyekyung KANG ; Seok KIM ; Eunyoung HEO ; Jong Soo HAN ; Hyunggoo KANG ; Hoseok CHAE ; Hee HWANG ; Sooyoung YOO
Healthcare Informatics Research 2015;21(2):102-110
OBJECTIVES: To design a cloud computing-based Healthcare Software-as-a-Service (SaaS) Platform (HSP) for delivering healthcare information services with low cost, high clinical value, and high usability. METHODS: We analyzed the architecture requirements of an HSP, including the interface, business services, cloud SaaS, quality attributes, privacy and security, and multi-lingual capacity. For cloud-based SaaS services, we focused on Clinical Decision Service (CDS) content services, basic functional services, and mobile services. Microsoft's Azure cloud computing for Infrastructure-as-a-Service (IaaS) and Platform-as-a-Service (PaaS) was used. RESULTS: The functional and software views of an HSP were designed in a layered architecture. External systems can be interfaced with the HSP using SOAP and REST/JSON. The multi-tenancy model of the HSP was designed as a shared database, with a separate schema for each tenant through a single application, although healthcare data can be physically located on a cloud or in a hospital, depending on regulations. The CDS services were categorized into rule-based services for medications, alert registration services, and knowledge services. CONCLUSIONS: We expect that cloud-based HSPs will allow small and mid-sized hospitals, in addition to large-sized hospitals, to adopt information infrastructures and health information technology with low system operation and maintenance costs.
Commerce
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Computer Systems
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Decision Support Systems, Clinical
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Delivery of Health Care*
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Electronic Health Records
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Information Services
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Medical Informatics
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Medical Order Entry Systems
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Privacy
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Soaps
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Social Control, Formal