For people who have problem to install OTM 6.3.1, please download and go through OTM Version 6.3.1 Supplemental Installation Guide from MOS (My Oracle Support).
Metalink NOTE 1564088.1 - Oracle Transportation Management Version 6.3.1 Supplemental Installation Guide
Metalink NOTE 1564088.1 - Oracle Transportation Management Version 6.3.1 Supplemental Installation Guide