A user-centered framework for designing health care interfaces
This paper is a write up of a redesign project undertaken by the authors using evidence based design and evaluation methods for health care human interface design. The authors compare usability scores pre and post redesign. 
Human-computer interface design methods
- User/environmental analysis
- Task analysis
- Representational analysis
- Functional analysis
Human-computer interface evaluation methods
- Inspection methods
- Heuristic evaluation
- Comparison of users' and designers' conceptual model
- Cognitive walkthrough
- Comparative analysis
- Small-scale usability studies
- Comparison of the redesigned application with the original application
The authors present a case study of an acutal redesign project, elaborating on each step in the process. The salient point throughout the case study and paper is that the design and evaluation is user-centric. Each step incorporates user experience or user needs.
Discussion and Conclusion
Redesigning a system isnt the ideal scenario, as it is much more difficult and costly to redesign than to use the user-centric design methods to begin with. However, the authors do show how a redesign project can be successful.
The authors did a great job explaining design methods and evaluation criteria for health care informatics. A little dated, maybe, because the paper is from 2004, but that makes it more interesting in that even considering design and technology advances in the last decade, the content here is still very relevant.
- Johnson, 2004 A user-centered framework for designing health care interfaces http://www.ncbi.nlm.nih.gov/pubmed/15694887