What's the right way to start up with Portal's dev?

Hi to all Portals experts,
I am really struggling to start up learning Portals and more specific their development.Here is the problem - I am a bit new in the NetWeaver but not new in J2EE environment. I went trough all WebDynpro tutorials and really the documentation was written nice.Good hands-on approach with lots of examples and that is what I found with WebDynpro - everything well explained step by step.
But when I started the Portals Tutorials I was a bit disappointed.
1.First of all, there is no explanation which tools one needs to start up with Portal Dev?
I only have SAP Netweaver Development Studio SP15 installed on my PC and I dont have any access to R/3, CRM or other system. Is this enough to at least start to learn Portal Development or not?
2. I realize well that at some point I will need real system to play with but , until than what useful practice I can do on my own and how?
- Even within the WebDynpro tutorial , the very first Part : Define a system - (http://help.sap.com/saphelp_nw04/helpdata/en/cb/f4bc3d42f46c33e10000000a11405a/frameset.htm) -In the portal, navigate to System Administration - System Configuration - System Landscape
Which Portal ? I dont have System Administration on my NWDS SP15?Is is something I should install?unclear?
3. My understanding is that NWDS SP15 contains EP , within its J2EE local engine , but is this EP.6.0, is this enough to develop complete Portal Application A-Z or not - unclear ?
4. PDK. Somewhere I read that Portal Application can be developed with either WebDynpro or with PDK. Ive read about PDK but It is not clear if it is Dev Kit as its name says , should it be downloaded , installed or imported into NWDS, again? And bottom line do I need PDK as a Portal Developer, and at which point?
I only need the starting point for Portal Develop. or some guide that should set milestones 1st ,2nd .. I would prefer the hands-on approach. If some of you has already taken this path and can help me with your directions, links, at least how to get started, I will highly appreciate it! Thanks in advance!Regards, Bob

Hi Bob,
The below reply is as per my experience with Development so far:
1> It is not necessary to have access to R/3 or any other SAP/non SAP application unless you are writing an application in connection to them.
Example: An application which is reading data from R/3 and displaying the same in a table. Yes, in this scenario you would require access to R/3.
2> System Administration is a role just like Home, User Administration, etc in Portal itself.
It contains all the configuration related to System Landscape, Knowledge Menegement, etc
If in case you have not been given this role, you may ask your System Administrator to create the required system (PCD Object). You may then use this system from your Profile (Personalize Portal) link directly.
3> NWDS resides over Portal so you may create your own standalone application or application thats talking to the underlying Portal.
WebDynpro is used to create UI & likewise you may build Web applications or EJB applications.
4> PDK stands for Portal Development Kit. YUou may ask your administrator to download and assign the same to you. This would appear as a "Java Developer" named role in your portal. It contains all APIs required for Java development.
If you do nto have this, you may still use the Javadocs provided on SDN itself.
Depending what custom developmetn you do, depending upon the type the .par (portal archieve), .ear (Enterprise archieve), .war (web archieve) needs to be deployed in portal, so that users may access/view the custom created data.
Hope this helps
All the best!
Warm Regards,
Ritu

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