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Tool ecology = group of tools. Example do you use external calendar, pen and paper, Word etc. with Tuubi.
MB: Good start. Now just finish the task one with the tool ecology and the descripyion of the stereotypical user of the segment of your focus, specify the most important usability criteria for the user segment you focus on and move to task 2, where you use the usability criteria to choose your testing method, place, time, tasks etc and then do the pilot test. Please finish the task 1 and 2 this week (i.e., week 47) we do the pilot testing in the week 48.