Added usability testing tasks, so that usability tests can be reteste…

…d later with same tasks.

usability-testing.md

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+Usability testing
+=================
+
+This document contains use cases given to subject persons in usability testing.
+
+Take this list with you and the test person, then read out loud each task one by one and observer what the user does.
+
+1. Imagine you live in Soukka, a part of Espoo. Your home address is Alakaupinkuja 1A!, 02360 Espoo. What is your home library and what is its address?
+
+2. It says on your library card that you can lend from all Helmet-libraries. How many are there of them? Answer with the amount.
+
+3. There is a book you want that is available only from a library called "Entresse". Where is it? What is its address?
+
+4. What public transportation comes close to Entresse? Does this service inform where the nearest bus stop is?
+
+5. Is Entresse now open? If it is, when will it close today? If not, when will it open next time?
+
+6. Where in Espoo can you find a library that has a microfilm reading device?
+
+7. What is the fax number to the Pasila library in Helsinki?
+