Can anyone explain me why the need for documents and document types came in webMethods services? I am just a beginner in wMs and it will be nice if u can relate it with Java as i had been a Java developer earlier.

Just to clear u on this IS document type contains a set of fields used to define the structure and type of data in a document,

Documents are objects that integration platform uses to encapsulate and exchange data among the resources and systems in an integration solution.

In java u may be aware of objects & classes/interfaces and webmethods document and document type are inspired by them.

thanks Pradip for the help

Document or document type u can relate this with structure in C C++ ,now when u create document u define the structure as u want when u create document type a structure can be created from XSD,XML,DTD..both doc and doc type can be referenced in webMethods flow or java code to reuse the structure.this structure is object of IData in java which webMethods uses to exchange or carry data where u can convert from one form to other(structure)

can u be more clear meena when u said:

"when u create document u define the structure as u want when u create document type a structure can be created from XSD,XML,DTD"

When u know create document type from XSD for example the structure is created in webMethods as it is defined in XSD such as what is the root element what is child element what is the data type of each fields whether they are mandatory or optional whether they are list or single etc.. The same thing you can decide when u create the structure without any external source which defines the structure. Mostly document type is common generic in nature which can be used in multiple places for example employee details which will have common fields such as employee I'd,contact details address etc.

thanks meena

That Is the basic data type in webmethods to hold data.