title: Introduction.
authors.forename: E M
authors.initials: EM
authors.lastname: Rogers
authors.forename: R
authors.initials: R
authors.lastname: Agarwala-rogers
mesh_terms: D003142:Communication; D005069:Evaluation Studies as Topic; D006040:Goals; D006285:Health Planning; D010684:Philosophy; D013597:Systems Analysis
keywords: Communication; Communication Programs; Evaluation; Evaluation Methodology; Evaluation Research; Goals; Philosophical Overview; Program Design; Systems Analysis