Solution 1:
Have a website that allow user to lock their own screen in order to stay focus. Before one starts working, he will set a quantifiable goal to achieve (e.g complete reading the first three chapter, finish writing the essay’s introduction). Then, they need to select all the websites, documents or apps the are for his work. After selection, other websites, documents or apps besides the ones chosen will be locked and users no longer have access to then. Meanwhile, advertisements or messages are blocked too. After users have confirmed that they have completed their goal, they are set free again. But the websites, documents, apps that they previously set are locked for 10 minutes in order to let users take a break.
Solution 2 :
Put a very obvious clock that shines every hour to remind people about the time.
Solution 3:
Automatically turn off the lights of the desks at the second floor of the library. every 2 hour. Users are allowed to turn it back on by pressing the 9 button “B””R””E””A””K””T””I””M””E” in this order. So that people are promoted to read the notice and take a break.Meanwhile, it also avoids energy loss from somebody left without turning the light off.