This study explores postgraduate students' perceptions of the effectiveness of collaborative learning within computer-based environments. The research investigates the distinctions between collaborative learning and group work, examining how students' attitudes and behaviours differ, and the subsequent impact on learning outcomes. Findings reveal that students can clearly distinguish between these two approaches. While both involve peer interactions, group work predominantly fosters employability skills such as teamwork and goal achievement, whereas collaborative learning enhances individual knowledge construction. The study introduces the Effective Learning Triangle (ELT), comprising three key core components: Facilitator, Environment, and Learning. In collaborative learning contexts, the facilitator plays a pivotal role in designing sessions that align intended learning outcomes with the learning environment. For example, flexible computer-based spaces emerge as conducive environments for promoting collaborative learning, particularly in technical disciplines. This paper highlights the significance of tailored facilitation and adaptable environments in fostering meaningful student engagement.