I have to make a system that allows me to find missing objects in a building. I want to put a tag on the items and with a computer program find out in which room the items is instead of looking into all the rooms for the item.
You put yourself in chains before you even start to get creative. Here is my take on it (since commercial viability was not required):
The system will output a description of the missing object on a piece of paper. The paper gets attached to the blackboard such that anyone can read the description. Whoever finds the object first gets a bounty of $100. This is a system 