When you have lots of information, organizing it into related groups can help users navigate it all. When a group is connected to a specific action, use a tile to make that fact clear to users.
Tile actions can lead users to the next step in a flow, select something on the page or break the flow with a popover or external link. The actions involve the tile as a whole, so make sure to group the information logically. If you want to group static content without any actions, use a card.
Make the action clear
Tiles should be associated with a single action the user can take. You don’t want surprise users by jumping them into a different context without warning.
So if your action is, say, taking users to a different site where they can read more information, provide icons and other cues to make it clear what will happen
Maintain visual hierarchy
Tiles are open to any content you want to put into them. If you’re putting a heading into a tile, we recommend using the title, which was designed for this purpose. Or at least use the same style of heading to keep the overall visual hierarchy.
Using different styles can create conflicting visual messages, especially if you’re using multiple cards on the same screen.
Keep descriptions for extra information
Users sometimes skip descriptions so make sure there’s nothing essential in them. If you need to say something really important, use an informational alert.
Tiles present information with a single action applying to the entire tile. For information without a related action, use a card.