“partitions” tag

The tag is described as follows:

• Questions related to the different ways of expressing an integer as a sum of integers; or, questions related to the subdivision of the edge or vertex set of a (hyper)graph.

Why are those two topics put together? If this is supposed to be about either partitions of a number or partitions of a set, then why only that one narrow instance of partitions of a set?

Later edit: Since writing the above I scanned down the list of questions bearing this tag, and consequently edited the description to read as follows:

• Questions related to the different ways of expressing an integer as a sum of integers; or, questions related to the subdivision of a set into smaller disjoint sets; questions related to the subdivision of an interval into smaller intervals that intersect only at the endpoints.
• My guess would be that the tag description was written after the fact by examining the questions tagged partitions. In other words, most likely that slightly strange tag description was "descriptive" instead of "prescriptive", unlike many of our other tags. – Willie Wong Dec 16 '11 at 9:06
• I'm working on a question concerning compositions (i.e., ordered partitions) of n, and notice that there's not a 'compositions of n' tag. Also, I have previously asked a question regarding cyclic compositions of n. Should I create a 'compositions of n' tag? – Dan Moore Aug 1 '14 at 16:19
• @DanMoore : If there is to be such a tag, I might call it "compositions of an integer". But my guess is it's too narrow a topic for its own tag. How many questions would bear that tag? – Michael Hardy Aug 1 '14 at 16:31
• @MichaelHardy One existing question about the count of cyclic compositions, and one future question featuring the reversal of a composition - i.e., a composition in the reverse order as another. So, both questions relate to ordered partitions rather than unordered partitions. I think there are other questions relating to ordered partitions as well. – Dan Moore Aug 1 '14 at 19:23
• Do you think that it is inappropriate to include compositions and cyclic compositions within the "partitions" tag? ${}\qquad{}$ – Michael Hardy Aug 2 '14 at 0:11
• No, I think the partitions tag is OK for this. – Dan Moore Aug 3 '14 at 3:29
• @DanMoore : In that case it sounds as if everybody lived happily ever after. – Michael Hardy Aug 3 '14 at 3:37