Very often we over categorize things, usually at the start of the project, and that is unsustainable. For reasons:
1. Duplicated files: a file, or type of file, falls into two or more categories.
2. Unsearchable: everyone has a different category logic. I see apples in red and green, he sees apples from Japan and United States. Both are correct.
Product files and campaign files are related, but shouldn’t duplicate. Design files and product files are related, but shouldn’t duplicate.
Dynamic filtering is to build the correlation between two different document types.
