The Student Development and Activities Department (SDAD) of The Student Affairs is tasked to provide opportunities for students to acquire skills, knowledge, and attitude needed in collaborating with people within the campus and in the community. The department also encourages the formation of student organizations whose activities are geared towards sociocultural, religious, recreational, and educational aspects of student development.
The logo has a diamond-shaped centerpiece being surrounded by colorful paper planes. The green diamond symbolizes the commitment of the De La Salle Medical and Health Sciences Institute in transforming students into steadfast leaders. The rays that emanate from one corner of the diamond signifies the mission of spreading the light especially to the underserved. The paper planes that surround the diamond are the colleges that the unit serves. The varying colors and sizes signify the cultural diversity of the colleges and the number of years established.