JDI and EP

Hi Friends,

I have a couple of questions regarding JDI. Hope you can help me...

1. How can JDI be used with EP?

EP content is mostly .EPA or .PAR content. This can be transported easily with System Administration -->Transport --> Export/Import. why should we use JDI here?

2. In real time scenarios, what content is usually transported using JDI, i.e. .EPA or .PAR or both.

3. Let us say, that JDI would be useful for transporting .PAR content, but this can be transported when transporting .epa files using import/export. so why should we use JDI to transport PAR FILES?

I am mainly focussing on EP. ofcourse it plays an important role when developing SAP java applications.

I hope that someone can help me in this regard.

Thank you