What is the proper spelling — “queueing” or “queuing?”
They are both correct spellings. The vast majority of queueing theory researchers use “queueing.” On the other hand, most American dictionaries and spell checkers prefer the spelling “queuing.” The list of well known researchers who use “queueing” includes P. Brill, J.W. Cohen, R. Cooper, D.R. Cox, D. Gross, F. Haight, C. Harris, B. Hnedenko, L. Kleinrock, M. Neuts, E. Parzen, N. Prabhu, S. Ross, T. Saaty, L. Takacs, R. Wolff. In addition, INFORMS, NSERC (Natural Sciences and Engineering Research Council of Canada), CORS (Canadian Operations Research Society), and the journal Queueing Systems: Theory and Applications, all use “queueing” in their publications. For an interesting set of letters and comments on the two spellings, see OR/MS Today (October, 1992, p. 10 and December, 1992, p. 10). One of the special features of the spelling QUEUEING is that it has five consecutive vowels (the other words with lots of vowels are obscure: like miaoued, iouea, euouae (6), uoiauai (7). See http: