| 摘要 |
<p>A method may associate a user with an account, the account specifying a number of activity units available to an account holder, each activity unit allowing the account holder to temporarily engage in an activity. Thereafter, a graphical user interface may be provided with one or more objects, each object being associated with a task to be accomplished. In response to the graphical user interface, at least one input may be received from the user selecting one or more of the graphical user interface objects, each selected graphical user interface object indicating that a task has been accomplished. Activity units associated with the account holder may thereafter be increased in response to the selected graphical user interface objects. Related apparatus, computer program products, and computer systems are also described.</p> |
