The traditional application of an LMS is in educational institutions. Learning management systems have been used for several years to deliver courseware in schools and popularize e-learning.
As verbs the difference between cane and crutch. is that cane is to strike or beat with a cane or similar implement while crutch is to support on crutches; to prop up.
RE: Chamfer vs fillet. Fillets give better flow (less resistance) than chamfers. Fillets will never give a UL/NSF or whatever regulatory inspector a reason to ding you for a sharp edge or burr (unless a machinist really bungles it).