In Prince2, a Daily Log is essentially a scrap pad for the Project Manager to use as desired. Typically it is used to log personal to-do items, diary events for posterity, and document other things that have no other place to go.
In TCP we have messaging and Action Items available for communications and to create to-do items for people. But we liked the idea of a personal scrap pad, and not only for the Project Manager, so we created My Daily Log for everyone.
My Daily Log is shown and managed in list format and in Kanban scrum board format with customizable categories.
My Daily Log is your own personal list and is not visible to anyone else on the project. If your Daily Log includes items with due dates, these items will appear in your Project Calendar, and those too will be visible only to you.