In my opinion, if you seek a daily productivity report from employees in the office, it could be quite monotonous for them. For example, preparation of letters, responding to emails, time spent on telephonic conversations, and time spent with colleagues to discuss official matters, etc. Over a period of time, they will merely fill up formats for the sake of it.
Instead, you can advise the respective department superiors to conduct a Daily Work Management Review, wherein the tasks assigned for the previous day with time frames are reviewed for 10-15 minutes every day at the start of the shift, and the time taken to complete the tasks is assessed.
The superiors can also educate employees on the important tasks and the manner in which they have to be prioritized. In some instances, we observe that the most important tasks are not attended to owing to various factors such as complexity, risks involved, etc. Hence, this approach may be appreciated by the employees as they will see that their performance is reviewed on a daily basis and monitored against mutually accepted target time.
Regards