doubts in XI basics..help me with some practical examples
I am new to SAP XI have some basic doubts. Answer my questions with some practical examples.
1. what is meant by "Business System" and what is difference between client,customer,Business partner,3rd party
2.If a small company already using some systems like Oracle or peopleSoft,if it wants to use SAP products then what steps it has to follow.
3. SAP system means a SERVER?
4.SAPWebAs means a server software?
5.R/3 system comes under SAP system?
6.XI is also one of the SAP module..how it relates to other modules.
7.In one organization which is using SAP modules,each module will be load in separate servers?
8.PO(purchase order) means just looks like one HTML file..customer will fill the form and give it.like this,Combination of many files like this is one SAP module.Is it right assumption..?if so,then what is speciality SAP?
I have an theoretical knowledge about IR and ID and SLD.what are general business transactions happens in any business ?(like who will send cotation,PO) give some practical example for what actually happens in business?..who will do what?and what XI will do?