For some context, have a look at this meta question, and the comments below it:
Merge the multidimensional-ish tags
Note that the OP is asking for a consolidation. All of the tags that start with the words "Multi-Dimensional" would be merged into a single tag.
But is this the way to go? And if it is, does it apply across-the-board? In other words, is this a unifying principle of tag management?
Or is the unifying principle that all tags should have a single meaning, and therefore we should have a greater number of more-specific tags, as in [multidimensional-array] and [multidimensional-database]?
Or is it some other principle? Or is there no unifying principle at all, and every tag merge/retag request must be handled on a case-by-case basis?