I have to select for our company a shortlist from different portal
solutions such as php/MySQL , SharePoint, ASP.NET, IBM WebSphere Oracle 10g WebLogic.

In our company we are running Oracle DB 9i, We are planning to extract data in proper way in a secure way to give our enterprise customer to view/read/customize ther private Data + an E-payment Gateway

Can any one point me in the correct way to evalute the portal solution?