Modelo procede

The model begins with final consequences and works backward to causes. This forces the planner to begin the planning process from the outcome end and encourages asking why before how.
Please readthis Breast Self Exam article in the Journal of Health Behavior. 
In this case, the final outcome is Breast Self Exam and the model helps to determine what will help the women regularly perform BSE, orwhat must precede the outcome. The factors important to any outcome must be designed before the intervention is designed. If not then intervention is based on guess work.
Social diagnosis -Subjectively define QOL ( problems & priorities ) of target population, individual or community. The best programs have the individuals involved in a self-study of their own needs. This empowers people andgathers needed input in order to determine the soluntion. Indicators include absenteeism, crime, illegitimacy, self-esteem, votes, welfare, unemployment and good things too.
Epidemiological diagnosis -Planners use data to identify and rank health goals or problem of phase 1. Data - morbidity, mortality, functional level, disability, longevity and prevalence.
Have to rank health problems becausethere is not enough money to fix us all.
Behavioral and environmental diagnosis - Determining and prioritizing the behavioral and environmental factors linked to phase
2. Behavioral indicators -compliance, consumption patterns, coping, preventative actions. Expressed as frequency, persistence and quality. Environmental indicators - economic, physical, services and social. Dimensions include -access, affordability and equity. 
Note arrows in 3 also go to 1 & 2, so programs attacking specific risk factors also impact social forces. For example, blood alcohol content for drinking and drivingimpact the number of arrests.Just rank factors by importance and changeability then use the 2x2 matrix.
Prioritization Matrix More Important Less Important
More changeble
Less changeable...