So, what was the solution that you went with?

Well, let's go through some of the options and we'll figure out which one is the best.

We could put up a sign next to the badge reader.

The sign would be descriptive.

It could be a nice laminated sign or even a sticky note

that tells people to use this badge reader to open the door over there.

But that's doesn't help the people who come to the door

and don't see the sign or the badge reader.

There's still a miscommunication here and it's still not usable.

Now, we could put the sign next to the door

that tells people to use the badge reader across the hall;

however, the sign could be lost.

People could have trouble finding the badge reader.

Still, it's not the best solution

and clearly, doing nothing is not going to help this confusing situation.

In this case, the ideal option is to move the badge reader

and put it next to the door that it controls.

The idea here is that the proximity of the 2 objects

will create an association that people will easily understand.

They'll know that one thing controls the other.

So, in this case, that's the solution we want to go with to improve usability.