Basic knowledge about Sap Netweaver, Web As, Web Dynpro

Hi guys,
I am a new nut guy trying to understand Sap NetWeaver. Could you guys explain to me just briefly in the most simplest ordinary terms about points below. I tried to read documentations but do not understand completely.
1) What is Sap NetWeaver? Does it comes with several components?
2) What is Web AS?? what does it serve?
3) I heard about Web Dynpro for Java and Web Dynpro for Abap. They are used to develop Web applications in Java language and the other in Abap language. I'm interested just on knowing the Java side.
I just want to understand the hardware systtem achitecture and associated software to be installed.
Now for Java, I heard that we need to install Web Developper Studio, rite?? then which version should I install, Sap Netweaver SP16 or Sap Neweaver 2004 or Sap Netweaver 2004s?? where can i find it?? should it be installed in front end station? do i need Java?
Now for Web AS, where do i install it??
I'm totally new in Sap NetWeaver
Thanks a lot guys

Hi Ralph, I will try to keep it simple.

1) What is Sap NetWeaver? Does it comes with several components?

SAP Netweaver is the platform in which all SAP software runs on top of. For example R/3 ran on the "Basis" layer, this is simular in ECC6.0, where ECC is the R/3 part and Netweaver(ABAP stack) is the "Basis" Layer. With Netweaver you get two stacks, ABAP and Java. SAP components run on one or the other. Netweaver includes, but is not limited to:
Netweaver Application Server(formerly called WebAS)
Netweaver Portal(formerly called EP)
Netweaver XI(I think there is a new name for this)
etc.

2) What is Web AS?? what does it serve?

WebAS is now called Netweaver Application Server, this is the basis for all applications, whether ABAP or java based. For example the ECC(R/3 component) runs on the ABAP stack of Netweaver Application Server, the Netweaver Portal runs on the Java stack of NW Application Server.

3) I heard about Web Dynpro for Java and Web Dynpro for Abap. They are used to develop Web applications in Java language and the other in Abap language. I'm interested just on knowing the Java side.

For the java side, you develop the webdynpro applications locally on your laptop using NWDS(Netweaver Developer Studio) and then deploy this application to the Netweaver Application Server(java stack). You can then implement the application into an iView in the NW Portal.
http://help.sap.com/saphelp_nw2004s/helpdata/en/15/0d4f21c17c8044af4868130e9fea07/frameset.htm

I just want to understand the hardware systtem achitecture and associated software to be installed.
Now for Java, I heard that we need to install Web Developper Studio, rite?? then which version should I install, Sap Netweaver SP16 or Sap Neweaver 2004 or Sap Netweaver 2004s?? where can i find it?? should it be installed in front end station? do i need Java?
Now for Web AS, where do i install it??

Which NWDS to install depends on the version of the java engine in which you are working with. The rule is that you keep the version of NWDS in sync with the version of the Netweaver Application Server(java engine). Usually the NW AS, is intalled on a standalone server(not your laptop), but you can install sneak preview editions on your laptop for testing .
I hope this helps a little.
Regards,
Rich Heilman

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first of all, welcome at SDN.
> I am new to the developing environment of Web Dynpro.
No problem, each one of us has been a newbie at the beginning.
> I just need a confirmation on my understanding.
> Please go through the following abstract and reply
> with a yes or changes if you dont agree.
> Web dynpro is a component of SAP NetWeaver,
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> which also offers many other components such as XI, MI, MDM
> and BI. All put together NetWeaver provides people,
> business as well as information intergration.
Ok so far.
> Web Dynpro in itself offers an easy way to develop highly
> interactive web pages through the MVC architecture.
> The coding or the meta data is in Java and hence a
> JDK needs to be installed on the local machine for
> its compilation.
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> For running it needs to be deployed
> on the J2EE engine on the Web Application server. The
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>
> Am I correct, till here ? If yes, then BSP initially
> used for making such web applications holds
> portability issues unlike Web Dynpro which can be
> used to develop applications in Java or ABAP, hence
> the reason why BSP is running off the road and Web
> DynPro is getting into the picture.
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>
> Thanx for yor patience.
You are welcome.
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