I am using tables to actually paint screens in a web app. There are key/value pairs attached to the table for certain page labels and icons, as well as key/value pairs for columns (for validation, etc). I know I didn't invent this, but I can't find the source for my original inspiration. The idea is that anytime the data changes (eg add/remove a column for entry, some data must be read-only), the web page changes dynamically without redeployment.

Could anyone more design-pattern-savvy give me an idea on which patterns fit this concept, and where "official documentation" might exist for what I did?

Not the most straightforward request, I know....