Strips are becoming a best practice. But also talk about icons as widgets, etc. Non-interrupting, but visible. Refer to copia stuff a lot on this. It's pretty solid, really.
Problem
Solution
Variations
Row on it's own
Combine with annunciator or similar
Pop-up as needed (smaller screens, older devices and scroll-and-select devices that have no good method to access additional on-screen items).
Interaction Details
Need to be able to deal with notifications, click on a bar and see the notifications.
Presentation Details
F
Antipatterns