Use Selective Sharing for Secure Data Gathering and Presentation
You can collect assumptions from collaborators by sharing only the worksheet they need to see and operate on.
Create various worksheets with different assumptions you want to gather from different collaborators:
Invite collaborators as Coworkers and select which worksheets and slides they can see by opening Share Project panel on the top-right:
Here, you can assign different Permission Levels such as Coworker (can edit) and Reader (can view) as well as grant them access to only specific worksheets or interactive slides. You can also enable Public Link – this means that everyone who has the link will be able to view worksheets and slides that you specified for public access (they will not be able to edit unless they log in and you give them edit access).
Alternatively, you can also assign permissions from the worksheet Access menu:
The same approach can be used in reporting: only share certain slides with specific stakeholders.