In enacting a workflow process model, it is very important to control and trace each instance's execution as well as to keep it recoverable. Especially, the recoverability issue implies that the underlying workflow management system is able to not only provide the automatic error-detection functionality on its running exceptions but also to equip various autonomous recovery mechanisms to deal w...

This paper analyzes the politics of paying for health care reform. It surveys the political strengths and weaknesses of major options to fund universal coverage and explores obstacles to changing how the United States finances health care. Finding a politically viable means to finance universal coverage remains a central barrier to enacting health reform.

The Medicare Prescription Drug Improvement and Modernization Act of 2003 contains dozens of provisions of interest to radiology. Beyond enacting a new drug benefit, the bill contains hundreds of amendments affecting all aspects of Medicare payment policy. This article identifies those provisions most likely to affect radiological practice, and provides a preliminary assessment of the implicatio...