Introduces and demonstrates a new model-based design method that brings greater precision to the design of health IT.

Design method extends workflow modeling with conceptual modeling of work products.

Use of method in a multiple sclerosis clinic produces the Patient-Centered Case Management System.

Usability evaluation indicates P-CMS is efficient and easy to use for case managers.

Simulations of workflow models suggest P-CMS could save 18% of the time required for case management in the clinic studied.