Let me just state couple of facts:
- Urartu and its people are not considered Armenian by any of the leading organisations including UNESCO, there must be a reason for that.
- Urartu language is a Caucasian language and after the fall of Urartu people did not vanish as it was stated by someone earlier, but most of the region was inhabited by Caucasian tribes chiefly Cappadocians and Meskhs.
- 99% of scholars belive that the area from lake Urmia to middle of now is Turkey and all the way north to southern Russia was inhabited by Caucasian tribes, with many settlements further west up to Northern Italy and Spain (Etruscans and Basques)
- From Bible and Assyrian writting we know that region all the way upto lake Van was inhabited by Caucasian tribes Chlaybs (invented metal and steel), Makrons, Mesheks, Nakhs (lived round Sevan and Nakh - ichevan areas) etc etc
- Most scholars ancient and modern including Armenian state that Armenians came to the region from another place, most believe it to be round nothern Syria, Lebanon region, closer to Cilicia sometime between 1500BC-600BC
- Harvard University papers state that Armenian language first appears to be used in the area of Urartu around 600BC.
- There is a theory that Armenians were requested to Urartu as tradesmen, while Urartians were warriors and scholars, then when Urartu dissolved Armenians made up a large proportion especially in the southern regions ie closer to their original homeland. This structure is true for most countries England and Netherlands used Jews to trade, in Malasia and Singapore region Chinese do all the trade, while from more recent history we know that many Armenians were requested by Georgia and parts of Iran even as late as 16th century to improve trade as Georgians for example were mostly scholars or soldiers, and there were no art of trade, there.
- If you read such scholars as REGINALD AUBREY FESSENDEN
(link: http://www.radiocom.net/Deluge/), you can see that word Urartu is from two of the Caucasian tribes Al- and Ur-, which were the orginal tribes of the whole region.