planing and tracking time of multiple users for a single card

[Dmitri]

Could you suggest a best way to plan and track time of multiple people for a single card? For example we have a Story card to add a feature XYZ. This will involve 3 people: 10 hours of product design, 20 hours of dev time and 5 hours of testing.

We would to be able to see work load of individual team members so we can better visibility of individual work load and better plan development efforts.

Thank you

[Nic Brough]

Break down the story into subtasks?