— In order to see if process assessment drives processes learning, process assessments were performed in the capstone project of a Bachelor in Computer Science. Assessments use an ability model based on a small subset of ISO/IEC 15504 processes, its main Base Practices and Work Products. Students' point of view was also collected through an anonymous questionnaire. Self-assessment using a competency model helps students to recognize knowledge, skills and experience gained over time and in diverse contexts. The capstone project offered a starting point. Students' self-assessment and external assessment are correlated to some point but are not correlated for topics unaddressed in the curriculum or unknown by students.