This is done to monitor the progress during programme implementation.
It involves gathering information during early stages of the project, with a focus on determining whether the efforts are being directed as planned. This helps in smooth running of the programme.
Attempts to identify and solve the shortcomings during the developmental stages of a programme (i.e. programme execution) and provides early feedback on programme weaknesses and obstacles that have emerged, to modify the remaining programme stages for gaining success.
Formative evaluation is a structured way to provide feedback on the work conducted by programme staff.
An example of formative evaluation would be a radio programme or any television show which may be evaluated to get a feedback on how well it is received by the target audiance.
What aspects of the programme were most or least successful?
An example of summative evaluation would be – An increase in consumption of iron folic acid tablets by pregnant women from 20% at baseline level to 25% at the end of the programme in two years.