The　outbreak　of　the　COVID-19　pandemic　in　early　2020　has　brought　tremendous　challenges　to　higher　education　teaching　and　learning.　Much　attention　has　been　put　on　online　course　construction　and　delivery　to　ensure　the　effectiveness　of　online　learning.　However,　higher　education　assessment　deserves　more　attention　as　it　is　also　significantly　impacted　by　the　sudden　switch　from　face-to-face　to　online.　To　examine　how　higher　education　institutions　responded　to　the　challenges　in　higher　education　assessment　during　the　pandemic,　this　chapter　conducted　a　case　study　of　postgraduate　programs　at　Lingnan　University　(LU)　in　Hong　Kong　to　explore　an　appropriate　assessment　framework　for　online　learning　in　a　liberal　arts　education　context.　Through　a　quantitative　approach,　this　study　surveyed　taught　postgraduate　students　to　explore　the　effectiveness,　efficiency,　and　fairness　of　the　assessment　approaches　applied　by　LU　faculty　members　in　the　online　and　hybrid-mode　classes.　This　case　study　aims　to　provide　insights　for　improving　higher　education　assessment　under　the　pandemic　crisis.　©　2023,　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.