well, to make a reasonable guess; have a look of 漢語多功能字庫, please.
對 (u+5c0d) is a character since 甲骨文 (oracle bone script), which is composed by component "丵" (u+4e35), "土" (u+571f), & "又 - 手" (又 originally means right hand).
3 pictures of 對 in oracle bone script:
then, 丵 in small seal script (i can't find this one in oracle bone script at this moment)
土 in oracle bone script
又 - 手 in oracle bone script
the synopsis in this page is:
the initial meaning of 對 is "using hand (又 - 手) tools (丵) to develop land (土)".
later, in 金文 (bronze script), the form of 對 is slightly changed:
the meaning of 對 at this time is "planting tree along the boundary of the newly developed land"
with nowadays technology, one might think of "building a fence to protect an area" (e.g. set up barbed wire fence to encircle a farm)
對 was "borrowed" to have the meaning of "response", "reply" or "answer"; which matches of the first two explanations in 國語辭典
imo, chopping "對" into "業" & "寸"; errh . . . . "off course" :(
imo, quoting "帝作邦作對" to support the above meaning is appealing.
here's the poem 皇矣 ( with James Legge's english translation)
verses in the second group is, opened up, made clearing in forest, paved the area.
then, in third group:
柞 has the meaning of "chop down trees"
邦 has the meaning of "planting tree as boundary", similar to 對. imo, "作邦作對" is rhetoric, a "writing in pair". in modern chinese, we still have the saying: 作威作福, or, 作福作威
next, 業 is character since bronze script, which is a 象形字 (pictogram) of "rack for hanging bell, musical instruments". here're 2 samples of 業:
imo, 業 is, unlikely, derived from 對 or 丵.