重點其實不是在於甚麼時候上課, 而是AAP.
Advanced Academic Programs (AAP) offers part-time graduate degree and certificate programs for adults seeking professional and personal enrichment.
https://advanced.jhu.edu/about-us/
所以將AAP歸類為professional education那邊是很合理的.
P.S. (碩士)
全日制, 偏學術研究 vs 兼讀制/晚上上課, 偏實戰
的比較, 不同國家市場有很不一樣的習慣, 就不用多講了.