Team for Research in
Ubiquitous Secure Technology

Integration of Clinical Workflows with Privacy Policies on a Common Semantic Platform
Jan Werner, Bradley Malin, Yonghwan Lee, Akos Ledeczi, Janos Sztipanovits

Citation
Jan Werner, Bradley Malin, Yonghwan Lee, Akos Ledeczi, Janos Sztipanovits. "Integration of Clinical Workflows with Privacy Policies on a Common Semantic Platform". 2nd International Workshop on Model-Based Design of Trustworthy Health Information Systems, September, 2008.

Abstract
Abstract. As healthcare organizations (HCOs) migrate to electronic systems, they must ensure compliance with complex data protection legislation, such as the Health Insurance Portability and Accountability Act (HIPAA). Legislation specifies rules that must be enforced, but regulatory language is often imprecise, forcing HCOs to define local policies and procedures, as well as specific enforcement technologies. It is difficult for HCOs to ensure requirements are correctly translated across the enterprise, a problem compounded by the constant growth and evolution of deployed information technology (IT), such as clinical information systems (CISs). The consequence is HCOs frequently rely on ad hoc IT configurations, which are unverified and potentially conflict with an HCO‟s policy. Thus, it is crucial to develop (1) formal and computable representations of rules and requirements in data protection legislations, and (2) CISs that automatically enforce such specifications. This paper introduces a solution to these challenges by integrating HIPAA policy rules with a domain-specific model-integrated computing suite, tailored to the clinical enterprise. We present a detailed description of the policy-modeling process, the enforcement mechanism, and illustrate how to implement several policies, including mandatory access control and emergency access. All policies are formally specified through Prolog, but their enforcement is dependent on when their compliance can be evaluated. Static policies are enforced at design-time by mapping them to the structural constraints of system models. In contrast, dynamic policy rules, enforced at run-time, are loaded into a Prolog-based Policy Decision Point and Policy Enforcement Point, our extension to the standard SOA execution platform, which controls access to all services reliant upon protected health information. All models are sufficiently rich for integrating a CIS on a standard Service Oriented Architecture platform.

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Citation formats  
  • HTML
    Jan Werner, Bradley Malin, Yonghwan Lee, Akos Ledeczi, Janos
    Sztipanovits. <a
    href="http://www.truststc.org/pubs/469.html"
    >Integration of Clinical Workflows with Privacy Policies
    on a Common Semantic Platform</a>, 2nd International
    Workshop on Model-Based Design of Trustworthy Health
    Information Systems, September, 2008.
  • Plain text
    Jan Werner, Bradley Malin, Yonghwan Lee, Akos Ledeczi, Janos
    Sztipanovits. "Integration of Clinical Workflows with
    Privacy Policies on a Common Semantic Platform". 2nd
    International Workshop on Model-Based Design of Trustworthy
    Health Information Systems, September, 2008.
  • BibTeX
    @inproceedings{WernerMalinLeeLedecziSztipanovits08_IntegrationOfClinicalWorkflowsWithPrivacyPoliciesOnCommon,
        author = {Jan Werner and Bradley Malin and Yonghwan Lee and
                  Akos Ledeczi and Janos Sztipanovits},
        title = {Integration of Clinical Workflows with Privacy
                  Policies on a Common Semantic Platform},
        booktitle = {2nd International Workshop on Model-Based Design
                  of Trustworthy Health Information Systems},
        month = {September},
        year = {2008},
        abstract = {Abstract. As healthcare organizations (HCOs)
                  migrate to electronic systems, they must ensure
                  compliance with complex data protection
                  legislation, such as the Health Insurance
                  Portability and Accountability Act (HIPAA).
                  Legislation specifies rules that must be enforced,
                  but regulatory language is often imprecise,
                  forcing HCOs to define local policies and
                  procedures, as well as specific enforcement
                  technologies. It is difficult for HCOs to ensure
                  requirements are correctly translated across the
                  enterprise, a problem compounded by the constant
                  growth and evolution of deployed information
                  technology (IT), such as clinical information
                  systems (CISs). The consequence is HCOs frequently
                  rely on ad hoc IT configurations, which are
                  unverified and potentially conflict with an
                  HCO‟s policy. Thus, it is crucial to develop (1)
                  formal and computable representations of rules and
                  requirements in data protection legislations, and
                  (2) CISs that automatically enforce such
                  specifications. This paper introduces a solution
                  to these challenges by integrating HIPAA policy
                  rules with a domain-specific model-integrated
                  computing suite, tailored to the clinical
                  enterprise. We present a detailed description of
                  the policy-modeling process, the enforcement
                  mechanism, and illustrate how to implement several
                  policies, including mandatory access control and
                  emergency access. All policies are formally
                  specified through Prolog, but their enforcement is
                  dependent on when their compliance can be
                  evaluated. Static policies are enforced at
                  design-time by mapping them to the structural
                  constraints of system models. In contrast, dynamic
                  policy rules, enforced at run-time, are loaded
                  into a Prolog-based Policy Decision Point and
                  Policy Enforcement Point, our extension to the
                  standard SOA execution platform, which controls
                  access to all services reliant upon protected
                  health information. All models are sufficiently
                  rich for integrating a CIS on a standard Service
                  Oriented Architecture platform.},
        URL = {http://www.truststc.org/pubs/469.html}
    }
    

Posted by Jan Werner on 18 Sep 2008.
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