In this paper, we review and reflect on our experience in the teaching of a Systems Analysis (SA) course in Semester 1, 2020, in Victoria, Australia, during COVID-19 lockdown. The SA course is a second-year course for all Bachelor of IT programs in our university, and it ran on three campuses and online. Students work in groups of three to analyse and document the system requirements of Australia Post. This paper describes the design of an SA course, how all students moved to online mode and the design of the final assessment to replace the traditional face-to-face exam in response to COVID-19 lockdown. We also describe the content of the course, method of instruction, assessment tools, the learning outcomes during online, what we have learned from running this course, recommendations for future offerings and how others can adapt and apply the practice.