The admit-and-confer structure functions like a department by admitting students and conferring degrees. These programs are housed in the College of Liberal Arts. The following programs participate in this model: 

• American Studies 
• Comparative Literature 
• Linguistics 

The second model is comprised of concentrations that admit students to the program directly, but the students eventually graduate from the associated graduate department of the major professor.  Degrees at Purdue are awarded only by programs which are approved by the Indiana Commission on Higher Education, which does not include these concentrations. The following programs participate in this model: 

• Interdisciplinary Biomedical Sciences
• Ecological Sciences & Engineering
• Interdisciplinary Information Security
• Interdisciplinary Life Science

The third structure is administered as a concentration. These programs review and admit students, but students must already be admitted by a degree granting department. Students have a concentration added to their transcript upon completing the program requirements. These concentrations include: 

• African American Studies 
• Computational Interdisciplinary Graduate Program
• Food Science
• Human Rights
• Ingestive Behavior
• Nutrition
• Transformational Innovation and Design
• Women’s, Gender, and Sexuality Studies