I would like to know what are the pros and cons of using a wwi server.
Thanks in advance.
You need a WWI Server as soon as you want to generate reports in EH&S.
WWI reports are based on Microsoft Word Templates. The generated WWI reports are stored as Word documents in the SAP DMS.
With WWI you can displays EH&S master data and other SAP master data on your reports. You have a lot of layouting options. You can use almost all formatting options that are available in Microsoft Word.
For WWI layouting you need to learn a special WWI layouting language and you need a good knowledge in MS Word.
If you just want to display Ad-Hoc reports without storing them in DMS you don't need a WWI server, but you will need a local WWI installation on your Frontend PC (can be installed together with SAP GUI installation) anyway.