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LRI Validation Suite Meeting Prototype Tool Demonstration December 20th, 2011
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Agenda Administrative Validation Suite Products Overview Tool Demonstration – Early Prototype – Joint effort of NIST and LMCO (ONC)
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Timeline Demonstration of “proof of concept” validation tool – Tuesday December 20 th, 2011 – Not for use (review in validation suite meetings) – Ballot 1+ IG version Prototype for trial use – Goal is early February (~2 weeks before HIMSS) – Ballot 1++ IG version (locked for Pilots—Today??) Version 1 – 3 months after publication of IG (after ballot 1) – Limited number of test cases Version for MU testing – Fall 2012 (Dependent on final publication of IG) – 3 Months after final publication
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Validation Suite Products (Drafts) Test Case Management Spreadsheet Test Messages LIS Test Plan EHR Test Plan Testing Methodologies Vocabulary Spreadsheet (value sets for the IG) – Including HL7, UCUM, in-scope LOINC, in-scope SNOMED to come – Categorized in-scope LOINC to support testing XML Conformance Profile – LRI IG MWB HL7 V2.5.1 XML + CP + CS HL7 V2.7.1 LRI IG XML Validation Tool – LIS Mode Context-Free Context-Based (Generated Data Sheets from Test Cases – Scenarios) – EHR Mode Generated Data Sheets and Juror Documents from Test Cases – Scenarios Provide feedback to implementation guide analysis group
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LRI Validation Suite WG Charter Overview Ambulatory EHR ONC S&I Framework Test Data LIS LRI Validation Tool EHR LRI Test Harness NIST LRI Test Tool 1.Suite scope limited to the requirements specified in the LRI IG 2.Develop test data 1.provided & verified by the S&I Framework community 3.LIS LRI Validation Tool 1.Used to validate vendor LIS systems & Test Harness 2.Develop a test plan 3.Capture and validate LIS LRI messages 4.EHR LRI Test Harness 1.Used to validate EHR systems 2.Develop a test plan 3.Simulation of an LIS system 4.Manage, Send, Receive LRI Messages 5.Inherently provides CLIA Testing 6.Targets 1.S & I Framework EHR Pilots 2.Vendor EHR Products 3.MU Certification LRI ORU R01 LRI ACK R01 S & I Framework EHR Pilots Vendor EHR Products Ambulatory EHR Systems 1.EHR Pilots 1.Draft standard trial use (implementation) 2.Verifies LRI IG can be implemented—provide feedback 3.Use LRI test harness to perform conformance testing 4.Function of the S&I Framework LRI Pilots WG 2.Vendor Product EHRs 1.Can use LRI test harness to perform conformance testing 2.LRI Test Harness expected to be used for MU certification Part of validation suite deliverablesAnticipated users of validation suite products
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LRI Validation – High Level Overview LIS Mode – Context-Free – Context-Based (Generated Data Sheets from Test Cases – Scenarios) EHR Mode – Generated Data Sheets and Juror Documents from Test Cases – Scenarios Conformance Profile Browser Vocabulary Browser
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LIS LIS Test Tool Load Cut/paste Send HL7 V2 Lab Results Message Validation Report Context Free Testing: 1.Context free testing will validate a LRI message created by the LIS 2.The context (e.g., the type and results of the lab test) is unknown to the validation tool 3.Therefore not all conformance requirements of the LRI implementation guide can be assessed 4.However, the validation provides a simple and convenient method for testing message structure and most vocabulary Process: 1.An LRI message is created by the vendor’s LIS 2.The message is sent, pasted, or loaded in the test tool 3.A validation is performed LIS Context-Free Testing
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LIS LIS Test Tool select test case Test Data Sheet Manual entry of test data Load Cut/paste Send HL7 V2 Lab Results Message Use Case Test Case Validation Report EHR transmits Hemoglobin blood test order to the LIS for John Doe along with pertinent demographic and order request data Lab Results Data Sheet John Doe DOB: 05/23/1959 Gender: M Result: 13.7 g/dL Range 13.2 – 16.2 Status: Final and more… A lab test is ordered for a patient The specimen is collected, and is received and processed in the lab The lab result is produced and stored in the LIS database The lab result message is created The lab result is transmitted to an ambulatory EHR The lab result is viewed in the ambulatory EHR Process: 1.A technician enters lab results data into LIS based off the data sheet provided 2.The message is sent, pasted, or loaded in the test tool 3.A validation is performed Context-based Testing: 1.Context-based testing will validate a LRI message created by the LIS 2.The context (e.g., the type and results of the lab test) is known to the validation tool 3.Therefore all conformance requirements of the LRI implementation guide can be assessed LIS Context-based Testing
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EHR Lab Message ACK Validation LRI EHR Test Harness Inspection Testing can be performed by: 1.On-site inspection 2.Over a webex like technology 3.Screen-scraper or screen-capture (include clock) 4.Printed Reports Inspection Testing Techniques 1.EHR display screens 2.Database access 3.Configuration files Communication Automated Testing Acknowledgement Message Limited Utility LRI Test Message Validation Report Test Data Test Case Use Case Juror Document ACK LRI EHR Testing – Test Harness
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Conformance Profile Machine processable version of the LRI implementation guide HL7 V2.7.1 Standard Conformance Profile – XML – Chapter 2B – Captures most of the LRI IG requirements Message Structure, usage, cardinality, CP, CS, – Key differences from V2.5.1 (and not handled by the MWB) Min/max length C(a/b) – configurable conditionals – NIST added elements for handling condition predicates and conformance statements (not defined in 2.7.1—NIST will propose for V2.9) Support for min/max shortly LRI IG MWB HL7 V2.5.1 XML + CP + CS + Length HL7 V2.7.1 LRI IG XML +
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Test Case Management Spreadsheet Processor Message Generation Engine Tab Delimited Text File LRI Test Message Generation Context File (XML) Test Data Test Cases Use Case Juror Document (XML) Test Case Management Spreadsheet Validation Context File (XML) EHR Data Sheet (XML) LIS Data Sheet (XML) Message Validation Engine Validation Report LIS Test Plan and LRI Test Tool Message Profile (XML) EHR Test Plan EHR Test Plan and LRI Test Tool LRI Test Tool Message Model Juror Document (HTML Tables) Modifies Message Model Validation Context File (XML) Regenerate Test Case Filter LRI Test Message User Configuration Test Case Management Spreadsheet Processing – Priming the Validation Tool
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LIS LIS Test Tool select test case Test Data Sheet Manual entry of test data Load Cut/paste Send HL7 V2 Lab Results Message Use Case Test Case Validation Report EHR transmits Hemoglobin blood test order to the LIS for John Doe along with pertinent demographic and order request data Lab Results Data Sheet John Doe DOB: 05/23/1959 Gender: M Result: 13.7 g/dL Range 13.2 – 16.2 Status: Final A lab test is ordered for a patient The specimen is collected, and is received and processed in the lab The lab result is produced and stored in the LIS database The lab result is transmitted to an ambulatory EHR The lab result is viewed in the ambulatory EHR 1.Local code 2.No code—text 3.LOINC code No LOINC given for results Test tool inspects OBX.3 for a specific LOINC code Inspect for 718-7 only or inspect for one of 718-7, 20509-6, 30313-1, 30352-9, 30351-1, and 30350-3? For Discussion: 1.No suggested method given (Should we?) 2.With no method given we should expect one from a set of valid LOINC codes for this order (Lab dependent?) 3.If a specific method is given (is this typical/possible?) then should we look for a specific LOINC code in the sent message? For Discussion: 1.Does the LAB expect a local code for the order in a electronic order request? 2.Use Cases to consider: agreement/no agreement between LIS and EHR for local codes It is assumed Lab has capabilities for manual entry Data Entry DB Message
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EHR Lab Message ACK Validation LRI EHR Test Harness Communication LRI Test Message Validation Report Test Data Test Case Use Case Juror Document ACK 718-7 (LN) SNameValueREF Range FHemoglobin13.713.2 – 16.2 g/dL For Discussion: 1.What are the requirements on the EHR with regards to LOINC— given the LRI IG, CLIA, and meaningful use? 2.What are the EHR display (GUI) requirements for the received lab results? 3.What are the EHR storage requirements for the received lab results? 4.Given that the LOINC code is likely to be translated into the EHR internal representation, what lab test names need to be displayed in exact form and what lab test names can be displayed in an equivalence text (same concept)? 5.What qualifies as “equivalence—same concept”? How is that determined? Can it be? Expert inspector only? Should displaying of the LOINC text (only) be the requirement—i.e., no mapping? 6.What is the impact of sending only the LOINC code (i.e., no local code) on testing? Translated into internal representation Displayed as internal display text representation
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