(じゅんじょ) The sequence of steps in a procedure.- the order of books arranged by a certain system, (i.e. Dewey Decimal).
(じゅんばん) Order of people in a line (take a number!) – order of bands on a live show.   $$$
(じょれつ) One’s ranking in the pecking order. More limited than 順番。 序列 is limited to, say, organization hierarchy or social stratification.