Project Server 2013 - PDP

Hi All,

We are implementing project server 2013. The below are the scenario.

1. We need retrieve some values from ERP and fill PDP fields

2. We need retrieve some values from AD and fill PDP fields

3. Retrieve some values SharePoint list and fill PDP

4. Based on the selection of the previous field value, the following column value need to be filled

In the above scenarios can we use the enterprise custom fields and default PDP or we use the solutions like InfoPath forms. Please suggest if there is any other way to achieve this.

Thanks in advance, Taj