The web studio is used to manage your web projects when you have multiple programmers as well to keep your SAP systems in synch in terms of transports. Ie. You need to check a file out in order to work with it, thus maintaining integrity of changes. You also need a open transport request in order to makes changes, thus tracking changes from within the SAP system.

"An ITS service consists of a service definition file, HTML templates, resource files, and any graphics needed. These files are all contained in the given service directory.
However, an ITS service can also be sub-divided into themes. Themes are instances of a service that differ only in their look and feel: appearance, graphics, layout or language. Each theme has its own set of templates and other service files, but the functionality of the service is the same for all themes. Themes are organized into sub-directories of the service directory." SAP

Making changes with Web@Studio

• Use transaction SIAC to create a transport for the applicable service

•  Connect to the R/3 source and get the applicable templates. Ie. Create a project and check the service files out.

•  Once completed, you can publish them to the web site.

•  Once you’re happy with the changes check them back into SAP and release the transport.

• It allows you to create service files, templates and language resource files

Process to implement an Internet transaction

Once the SAP transaction is completed perform the following:

• Create a project

• Define an ITS site for publishing

• Create the ITS files:

  • Service file

  • Theme

  • HTML templates. 1 for each dialog screen

  • Language resource files

• Specify the new service as the active service

• Edit files and make required changes

• Test and Publish

• Add the files to R/3 source control

• Create a request and assign the files to it (SIAC)