Dear Rahaman,
Please refer to the PD 16.5 packaging options below and you can't miss the differences.
DataArchitect\DM includes Shell/Core*, XML, PDM, LDM
DataArchitect\RE includes Shell/Core*, XML, PDM, LDM, Repository
Information Architect includes Shell/Core*, XML, PDM, LDM, Repository, DMM, CDM, BPM
EnterpriseArchitect includes Shell/Core*, XML, PDM, LDM, Repository, DMM, CDM, BPM, OOM, EAM, EA Frameworks
** Shell & Core includes UI, Gap and Impact Analysis Tools, Reporting Tools, RQM, Free Model, and other common components
There exists different modeling features you can use in each of packages in PowerDesigner 16.
If you want to use a repository for storing models and sharing them with other modelers, you should have at least DataArchitect/RE option.
And, If you should use OOM, then it is required that you have the EnterpriseArchitect option.
Best Regards
Jerry