|Do you know where your variables are?|
Let's say you had such a repository. And in it you have a bunch of objects that got put there at some point.
Amongst them, there are say 3 lamps with the attributes you listed. Two are identical, and the third is the same as the first two, except for its color.
How will your program tell the repository which one (instance) of the lamp that it wants to deal with?
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.