Conceptually define success for S.N.A.P., Affordable Care Act, and D.A.R.E.
Based on the conceptual definition then operationally define success for each of the above programs and provide appropriate variables/measures
Please note that operationally defined success refers to the mission (just as the conceptually definition) not the organization, itself. For example if success is defined as ensuring that children are properly immunized (conceptual definition), then you would not describe the operations of the program (if there were one) but rather define the conceptual definition as something measurable--the number of children that are vaccinated (or not vaccinated)--an operational definition. These would also be the appropriate measures.
HELP INFORMATION
Take a different program--a tougher one
Definition of success (conceptually): Prevention of terrorist attacks on US soil
Operational definition of success that could mean how many terrorist attacks on US soil. It could also mean, how many attacks were thwarted. Both of those are quantifiable variables: the number of attacks on US soil and the number of thwarted attacks on US soil..
That is all that you needed to do. No need for any other commentary, background, etc. You are not writing term papers, so all this other information is unnecessary at least, given how the assignment is written.