A continuous and regular action or succession of actions, taking place or being carried out in a definite manner, and leading to the accomplishment of some results.
World Health Organization. European Observatory on Health Systems and Policies. Glossary. 2009.
Process is a course of action or series of activities.
Outcomes - the effect the process has had on the people targeted by it. These might include, for example, changes in their self-perceived health status or changes in the distribution of health determinants, or factors which are known to affect their health, well-being and quality of life.
Output - the product or results of the process. These might include, for example, how many people a project has affected, their ages and ethnic groups or the number of meetings held and the ways in which the findings of the project are disseminated.