hi Ninad, all of the information you mention is definitely there in the upgrade guide. Please open the 9.5 upgrade guide now and find the following:
chapter 1 - upgrade overview says you can upgrade from 7.1. Also it says “you can only upgrade a product
from its latest release.” For the 7.1 release, for some products the latest release is 7.1.3 (IS, MWS), and for the rest it is 7.1.2.
Integration server - see chapter 8, page 54, section Run the Integration Server Migration Utility. As you read this section, you will see the prompts that explain clearly what you can migrate.
My webMethods server - see chapter 6, page 46, section Run the MwS Migration Utility. Again you will see the prompts that explain clearly what you can migrate.
Trading networks - see chapter 8, page 57, step 11. This is the prompt in the IS migration utility for TN, and the guide explains clearly what will be migrated. Also you can search on Trading Networks in the pdf.
process engine - again, chapter 8, some parts of business processes are migrated using the IS migration utility. But you can also search on “process” throughout the guide to find all info relating to business processes.
Task engine - see the MwS chapter for everything that is migrated for MwS. Also you can search on “task” in the pdf to find migration of task related info.
I recommend that you read the upgrade guide closely for your products; the guide explains how to upgrade and migrate data. For some products a migration utility is available, but for others no migration utility is available. Either way, you must follow the instructions in the guide to upgrade/migrate.