This seems obvious but the level to which its necessary escapes a lot of designers.
You must make the hidden goal visible. A lot of design focuses on whatever the easier form of data to visualize is. Makes it pretty and then calls it a day. You really have to dive down and figure out what people care about.
A few examples of the real metrics:
1. When tracking alcohol intake, it doesn’t matter how many drinks you’ve had. It matters how drunk you are.
2. When tracking calories, it doesn’t matter how many calories you’ve consumed. Its the net calories that matter. Total calories – you resting burn rate – and exercise you’ve done.
3. When trying to stop biting nails, it doesn’t matter whether you bite your nails or not. Its the condition of your nails that matter. the # that are in an ideal state.
4. When trying to stop touching your face, it doesn’t matter whether you touched your face or not. It matter how many red spots are on you face any given day.
Then, to give clear visual feedback, you must do it not just for today, but over time. Show how improvement is or isn’t happening.
^ Day 74/90 221 words