How long does it take for typical members of the community to learn relevant task? Rate of errors by users: How many and what kinds of errors are made during benchmark tasks?

Using pen and paper, sketch out two different ideas of preliminary designs for your user interface. Consider the particular needs of your target user population. Describe and explain each set of sketches.
Write the user documentation – a brief new user’s guide to getting started. Or, design your interface so it needs no user documentation. If you don’t need user documentation, please indicate this in your write-up.
How long does it take for typical members of the community to learn relevant task?
Rate of errors by users: How many and what kinds of errors are made during benchmark tasks?