...
- frequency of task: on average only once, but could vary up to 5 in extreme cases
- preconditions: knowing the url for the web app, having an email account
- sign up:
- provide a unique identifier (email) and password
- confirm the email address
...
- frequency of task: on average once a month, but could vary between a day and 5 years
- precondition: logged in
- change password:
- provide the old password
- enter a new one and confirm it
...