1. Theriak Ivar Helgason MD MSc

2. Expectations Speed Safety Simplicity Reduce cost Up to date information Advanced decision support Control Not a drug ordering system Mimicking the paper behavior is easy

4. New types of errors Pick-list errors thiamine -> thalidomide Double medication Drug names [drug name] 50mg/ml 200ml 2ml three times a day “clever” usage Hints for unknown dose

5. Important that the foundation is sound Prescription model Tablets 80% Creams Drops Mixtures Injections / infusions Diabetic treatment schemes Anticoagulation Fluid treatments...

6. Drug model Sign / symptom Drug 1Drug 2Drug 3 TabletMixtureInfusonSup.Capsule 10mg20mg50mg Brand1Brand4Brand3Brand2 Drug model 10 tablets20 tablets50 tablets100 tablets

7. Drug model Maintenance Decision support Tetracycline Age < 9 years

8. System design principles Uptime Redundancy HIS / PAS systems Laboratory systems Emergency module

9. Design principles Safety features Passive safety Consistency Color scheme User fatigue prevention Active safety Pharmacy review Decision support Prescription assistance DAX

10. Passive safety User fatigue prevention Guide the user Eliminate the need to catch errors No popups! Consistency is everything Neutral colors if no warnings Yellow/green for warnings Red for serious warnings Blinking for extreme danger The “no magic” rule

11. Active safety Pharmacy review Various rules prompting a clinical pharmacist to review certain patients Overdosing Subset of drug-drug interactions Specific medicines Specific patients …

12. Decision support Prescription assistance Overdose warnings Drug predictions Dose predictions PRN predictions Default prescription pattern algorithms DAX

13. Drug warnings Drugs and driving Sport Photosensitivity QT interval Addiction Pregnancy Lactation Drug – drug interactions Double medication warnings Allergy engine

19. The laws of simplicity / John Maeda Simplicity is about subtracting the obvious, and adding the meaningful. Interface - Spring cleaning

20. LAW 1: REDUCE The simplest way to achieve simplicity is through thoughtful reduction.

21. LAW 2: ORGANIZE Organization makes a system of many appear fewer.

22. LAW 3: TIME Savings in time feel like simplicity.