Yes but I could have many employee who is working on field and they don't use a computer so theese employee fills a timesheet on paper than a secretary make the data entry. Another case is when you have a worker on contract (or subcontract) for short time.. you have to create a system user for this too... generally speaking a timesheet is related to someone is working for me not to an openerp user :)

Perhaps a way to log hours for employees who are not users is to use expenses?

The suggestion is very valid, I agree it is a very likely scenario that many employees are not filling their timesheets online, but rather on paper. Submit a bugreport at https://bugs.launchpad.net/openobject-addons/+filebug

I don't think it will be considered a bug. A better place to log this as a requested feature would be at http://feedback.openerp.com/forums/87923-human-resources

I agree this issue can't be considered a bug but I think is a bad design concept. I found this http://feedback.openerp.com/forums/87919-project/suggestions/1509145-makes-employee-resource-user-creation-more-straigh and this http://www.mail-archive.com/openerp-expert-service@lists.launchpad.net/msg00029.html that enforce my opinion. Unfortunately both are old and without follow-up

I agree with you. Design ... just a weird one

Any ideas to implement it ?

I think that timesheets link should be changed from user to employee...maybe this link is in many dependencies. I hope that current design strategy doesn't depend from $$... because, as you know, OpenERP Enterprise is also paid per user ?!?!