Effective physical activity interventions do not achieve their full potential if they are not applied beyond their original testing in research studies. Potentially effective interventions can be adopted in community settings through the efforts of numerous agencies, organizations, and individuals. This paper highlights the important roles of public health practitioners and policy makers, who d...

There is much we don't know about information system development and the use of systems development methodologies. Research to date has focused on the development of new methodologies. There has been little evaluation of these methodologies or examination of the selection, development, adaptation, or use of methodologies in practice. This paper discusses this lack of knowledge, its ramification...

The systems approach is arguably the dominant concept within accident analysis research. Viewing accidents as a result of uncontrolled system interactions, it forms the theoretical basis of various systemic accident analysis (SAA) models and methods. Despite the proposed benefits of SAA, such as an improved description of accident causation, evidence within the scientific literature suggests th...