1. © 2014 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Building a Windows Client Brian Postlethwaite Phoenix, AZ - May 2014

2. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Who am I? Name: Brian Postlethwaite Company: DCA eHealth Solutions, Australia Background:  HL7 Patient Administration team  OMG Healthcare DTF: ServD Standard  Solutions Architect Contact:  bpostlethwaite@data.com.au bpostlethwaite@data.com.au 2

3. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Introductions Who is building with.NET? Who is using the fhir API? Who grabs it from Github/NuGet? Which Platform(s) are you targeting? 3

4. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Contents… 4 fhir.NET Model / API Where to get them Building your own API  And contribute! MVVM quick overview Make a View Model Sharing Code “Tweaking” code

5. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. What is the fhir Model/API? Object Model  Validation  Cardinality  Contained Objects  Extensions API  Parsers/Serialization  Utilities  Validators  Simplified Common Operations 5

6. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Why not native? Own code – Must maintain it Need to consider both formats (json/xml) Handle extensions cleanly Both formats have their own “specifics” XML and json are best represented on the wire in different ways The fhir client has been extensively tested, and continues to grow 6

7. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Where can nuGet It? NuGet!  Directly from within Visual Studio 7

8. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Where else can I Git It? GitHub! https://github.com/ewoutkramer/fhir-net-api Location of the API Source Mirror of the HL7 Forge c# model code Which can be downloaded from the fhir site Easier to see the history and change Build and Contribute! Contains.NET 4.0/4.5/PCL 4.5 projects 8

9. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Solution Structure 2 Solutions .NET 4.0 Projects only  All Projects Shared source between projects #define PORTABLE45  async support #define NET45  async support Why? 9

10. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Shared Code/#defines 10

11. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Documentation http://ewoutkramer.github.io/fhir-net-api/ 11

12. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. MVVM Review 12 User Interface No logic! Data Binding View Data-binding “Glue” Commands Simplify Model View Model Data Model Basic logic / Validation Can be layered for abstraction Model

13. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Data-Binding Properties in object INotifyPropertyChanged Events Observable Collections Converters IValueConverter INotifyPropertyChanged was recently added to the basic Model objects 13

14. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Commands For use with Data-binding functionality Class that derives from ICommand Supports enabling/disabling Example Commands  Search  Clear  Save 14

15. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Test Data Create some test data (patient-test-data.xaml) Create “test data in code” Use in the design surface Issues:  The fhir model uses nested classes (Not supported by the test data xaml stuff)  To overcome this, for the properties that you intend to data-bind, create simple properties that encapsulate nested classes 15

16. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. My App Project Structure fhir place Solution  dca.fhir.Model (PCL)  fhir-place-wpf (net 4.0)  fhir-place-win8 (Net 4.5)  fhir-place-Phone8 (Silverlight 8)  fhir-place (univeral app) *new* fhir-place.Windows (Windows 8.1) fhir-place.WindowsPhone (Windows Phone 8.1) fhir-place.Shared 16

17. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. DEMONSTRATION Creating Projects, Models, Commands 17

18. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Design Your Model / View Model What is your app trying to display? What user interactions are planned? What form factors are you covering? What is your navigation model? What are the connectivity issues? Error handling/reporting? User Interface control requirements? Security? 18

19. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Demo App Server textbox Search for Name textbox Search Button Total Results counter Search Command Patient List results Patient Item User Control 19

20. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. DEMONSTRATION Full Search Patient App 20

21. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. My Apps Simple Patient Viewers Wrapped Model Cached Reference Items Recent Viewed List Patient Demographics, Allergies, Conditions, Medication Statements, Observations (with Charts) Aggregates results from multiple servers To be published in the Microsoft App Stores 21

22. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. My Apps Simple Patient Viewer Concept Doctor Viewing Patient Records in the field (well golf course!) 22

23. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. 23

24. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. My Apps Concept Emergency Room App (Bed End or Nurse’s Mobile Device) 24

25. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. 25

26. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. 26

27. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Try it yourself! Repeat my live demonstration app! Do it for a different resource type Point it at your own fhir server! 27

28. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Questions? 28

29. © 2013 HL7 ® International. Licensed under Creative Commons. HL7 & Health Level Seven are registered trademarks of Health Level Seven International. Reg. U.S. TM Office. Thank you 29