hxrefactored - healthimpact - shahid shah
TRANSCRIPT
Stop dreaming about fluid data interoperability and start focusing on actionable enterprise systems integration
By Shahid N. Shah
www.netspective.com
This and many of my other presentations are available at
www.SpeakerDeck.com/shah
@ShahidNShah [email protected]
www.ShahidShah.com
NETSPECTIVE
www.netspective.com
Who is Shahid? • 20+ years of software engineering and
multi-discipline complex IT implementations (Gov., defense, health, finance, insurance)
• 12+ years of healthcare IT and medical devices experience (blog at http://healthcareguy.com)
• 15+ years of technology management experience (government, non-profit, commercial)
• 10+ years as architect, engineer, and implementation manager on various EMR and EHR initiatives (commercial and non-profit)
Author of Chapter 13, “You’re the CIO of your Own Office”
NETSPECTIVE
www.netspective.com
What’s this talk about? Background • Many enterprise apps are being
built these days, most are designed to work as a stand alone system similar to consumer apps
• Healthcare-specific software engineering and integration tools are going to do more harm than good (industry-neutral is better).
Key takeaways • Any enterprise app which acts like
a consumer app that doesn’t integrate well into hospital or ambulatory systems and workflows is doomed
• There’s nothing unique about health IT data that justifies complex, expensive, or special technology.
• There’s a lot unique about healthcare workflows that require common technologies to be adapted properly.
NETSPECTIVE
www.netspective.com
Application focus is biggest mistake Application-focused IT instead of Data-focused IT is causing business problems.
NETSPECTIVE
www.netspective.com
The Strategy: Modernize Integration Need to get existing applications to share data through modern integration techniques
www.netspective.com
Why do health IT systems integrate poorly?
www.netspective.com
Because customers don’t know how to effectively punish vendors that don’t integrate well. But, that’s changing. Slowly.
www.netspective.com
Because apps developers don’t have a systems engineering culture where we think of data integration as a discipline our customers will buy. But, that’s changing. Slowly.
www.netspective.com
Because we want to wait for others to create a new standard or magical API that makes integration problems disappear. But, that’s changing. Slowly.
NETSPECTIVE
www.netspective.com
The tactical issues • We don't support shared
identities, single sign on (SSO), and industry-neutral authentication and authorization
• We're too focused on "structured data integration" instead of "practical app integration" in our early project phases
• We focus more on "pushing" versus "pulling" data than is warranted early in projects
• We have “Inside out” architecture, not “Outside in”
• We're too focused on heavyweight industry-specific formats instead of lightweight or micro formats
• Data emitted is not tagged using semantic markup, so it's not securable or searchable by default
• When health IT systems produce HTML, CSS, JavaScript, JSON, and other common outputs, it's not done in a security- and integration-friendly manner
So what do we do? And now…
www.netspective.com
Unused data never gets better. Fix broken windows.
Iterate your way to better data by forcing its use.
NETSPECTIVE
www.netspective.com
Legacy integration
Application A
Data Functionality Presentation
Feature Y
Feature X
Application B
Data Functionality Presentation
Feature Y
Feature X
Feature Z
Copy features and enhance (everything is separate)
Application A
Data Functionality Presentation
Feature Z
Feature X
Application B
Data Functionality Presentation
Feature Y
Feature X
Feature Z
Connect directly to existing data, but copy features and enhance
DB
NETSPECTIVE
www.netspective.com
Services
Modern integration
Application A
Data Functionality Presentation
Feature Y
Feature X
Application B
Data Functionality Presentation
Feature Y
Feature X
Feature Z
Create API between applications, integrate data, create new data
Application A
Data Functionality Presentation
Feature Z
Feature X
Application B
Data Functionality Presentation
Feature Y
Feature X
Feature Z
DB
Create common services and have all applications use them
REST SOAP, RMI
SOA
ETL
WOA
APIs
www.netspective.com
Create a formal Enterprise Integration Group (EIG) Even get a cool logo and team mascot.
www.netspective.com
Start cataloging and formalizing use of enterprise integration patterns. You’re not the first (or second) to see these problems.
www.netspective.com
Learn about ESB and ETL. Don’t hand code things.
www.netspective.com
Create a technical profile questionnaire and checklist Don’t hand code things.
www.netspective.com
Lets see what all of this looks like in practice. You can do this in less than 40 manhours of work.
NETSPECTIVE
www.netspective.com
Start with read-centric integration, move to enrichment later
Where users spend time What they’re missing
The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again.
NETSPECTIVE
www.netspective.com
Stop and think about workflows Sexy but wrong: Device-centric closed systems Dull but right: Workflow-centric open solutions
NETSPECTIVE
www.netspective.com
Promote “Outside-in” architecture
Think about clinical and hospital operations and processes as a collection of business capabilities or services that can be delivered across organizations.
NETSPECTIVE
www.netspective.com
Promote “Outside-in” architecture
Patients and
Referral Partners
Clinical Personnel
Admin Personnel
IT Personnel
Unsophisticated and less agile focus
Sophisticated and more agile focus
Inside-out focus Outside-in focus
NETSPECTIVE
www.netspective.com
Proprietary identity is hurting us • Most health IT systems create their own
custom identity, credentialing, and access management (ICAM) in an opaque part of a proprietary database.
• We’re waiting for solutions from health IT vendors but free or commercial industry-neutral solutions are much better and future proof.
Identity exchange is possible • Follow
National Strategy for Trusted Identities in Cyberspace (NSTIC)
• Use open identity exchange protocols such as SAML, OpenID, and Oauth
• Use open roles and permissions-management protocols, such as XACML
• Consider open source tools such as OpenAM, Apache Directory, OpenLDAP, Shibboleth, or commercial vendors.
• Externalize attribute-based access control (ABAC) and role-based access control (RBAC) from clinical systems into enterprise systems like Active Directory or LDAP.
Implement industry-neutral ICAM Implement shared identities, single sign on (SSO), neutral authentication and authorization
NETSPECTIVE
www.netspective.com
Dogma is preventing integration Many think that we shouldn’t integrate until structured data at detailed machine-computable levels is available. The thinking is that because mistakes can be made with semi-structured or hard to map data, we should rely on paper, make users live with missing data, or just make educated guesses instead.
App-centric sharing is possible Instead of waiting for HL7 or other structured data about patients, we can use simple techniques like HTML widgets to share "snippets" of our apps. • Allow applications immediate access to
portions of data they don't already manage. • Widgets are portions of apps that can be
embedded or "mashed up" in other apps without tight coupling.
• Blue Button has demonstrated the power of app integration versus structured data integration. It provides immediate benefit to users while the data geeks figure out what they need for analytics, computations, etc.
App-focused integration is better than nothing Structured data dogma gets in the way of faster decision support real solutions
NETSPECTIVE
www.netspective.com
Old way to architect:“What data can you send me?” (push)
The "push" model, where the system that contains the data is responsible for sending the data to all those that are interested (or to some central provider, such as a health information exchange or HL7 router) shouldn’t be the only model used for data integration.
Better way to architect: “What data can I publish safely?” (pull)
• Implement syndicated Atom-like feeds (which could contain HL7 or other formats).
• Data holders should allow secure authenticated subscriptions to their data and not worry about direct coupling with other apps.
• Consider the Open Data Protocol (oData). • Enable auditing of protected health
information by logging data transfers through use of syslog and other reliable methods.
• Enable proper access control rules expressed in standards like XACML.
Pushing data is more expensive than pulling it We focus more on "pushing" versus "pulling" data than is warranted early in projects
NETSPECTIVE
www.netspective.com
HL7 and X.12 aren’t the only formats
The general assumption is that formats like HL7, CCD, and X.12 are the only ways to do data integration in healthcare but of course that’s not quite true.
Consider industry-neutral protocols • Consider identity exchange
protocols like SAML for integration of user profile data and even for exchange of patient demographics and related profile information.
• Consider iCalendar/ICS publishing and subscribing for schedule data.
• Consider microformats like FOAF and similar formats from schema.org.
• Consider semantic data formats like RDF, RDFa, and related family.
Industry-specific formats aren’t always necessary Reliance on heavyweight industry-specific formats instead of lightweight micro formats is bad
NETSPECTIVE
www.netspective.com
Legacy systems trap valuable data In many existing contracts, the vendors of systems that house the data also ‘own’ the data and it can’t be easily liberated because the vendors of the systems actively prevent it from being shared or are just too busy to liberate the data.
Semantic markup and tagging is easy • One easy way to create
semantically meaningful and easier to share and secure patient data is to have all HTML tags be generated with companion RDFa or HTML5 Data Attributes using industry-neutral schemas and microformats similar to the ones defined at Schema.org.
• Google's recent implementation of its Knowledge Graph is a great example of the utility of this semantic mapping approach.
Tag all app data using semantic markup When data is not tagged using semantic markup, it's not securable or shareable by default
NETSPECTIVE
www.netspective.com
Proprietary data formats limit findability
• Legacy applications only present through text or windowed interfaces that can be “scraped”.
• Web-based applications present HTML, JavaScript, images, and other assets but aren’t search engine friendly.
Search engines are great integrators • Most users need access to
information trapped in existing applications but sometimes they don’t need must more than access that a search engine could easily provide.
• Assume that all pages in an application, especial web applications, will be “ingested” by a securable, protectable, search engine that can act as the first method of integration.
Produce data in search-friendly manner Produce HTML, JavaScript and other data in a security- and integration-friendly approach
NETSPECTIVE
www.netspective.com
Healthcare fears open source • Only the government spends more per
user on antiquated software than we do in healthcare.
• There is a general fear that open source means unsupported software or lower quality solutions or unwanted security breaches.
Open source can save health IT • Other industries save billions by using
open source. • Commercial vendors give better
pricing, service, and support when they know they are competing with open source.
• Open source is sometimes more secure, higher quality, and better supported than commercial equivalents.
• Don’t dismiss open source, consider it the default choice and select commercial alternatives when they are known to be better.
Rely first on open source, then proprietary “Free” is not as important as open source, you should pay for software but require openness
Thank You
Visit http://www.netspective.com http://www.healthcareguy.com E-mail [email protected] Follow @ShahidNShah Call 202-713-5409