Relevant mathematics courses for this area are MATH 3653, MATH 4553, MATH 4583, and MATH 4663. From Statistics you might choose STAT 4203 and STAT 4213; from Computer Science, COMSC 2133.
For Management Science emphasis: ACCTG 2103, ACCTG 2203, ECON 2013, MGMT 3013, MSIS 3223, MSIS 3233, MSIS 3243, MSIS 4223, and MSIS 4253. For Systems Analysis emphasis, try: ACCTG 2103, ACCTG 2203, MSIS 3103, MSIS 3303, MSIS 4113, and MSIS 4523. Refer also to the publication, ``Undergraduate Majors in Mathematical Sciences.''