Hi I need to create a form, so you can insert information about a document however I don't know where can I find information.
You can get started with Help center link for creating Wizards/ forms and processing the information.
You also have a lot of flexibility via the Type and Attribute Manager Layouts.
Let's break it down to the fundamental logical components. What Object type do you want to do this for (e.g. all Document types or something specific) and what kind of information did you want to have users adding when creating/modifying that Document object in the system?
How about creating workflow variables and getting the values from user in the tasks assigned to them and then inserting those to Document IBA's
The problem is that I have to create a Drop Down menu so depends of the value that you select of the drop down menu other drop down appear with other options, and I can't do it this with workflow variables I guess.
wrote this (see attachment, my personal memorize guide) for a maybe similar task/workflow/...
Maybe it helps,
P.S. Windchill FRACAS documentation is a p...I...t..A.. 😉