Quote from tradingtechnolo:
From a rates trading perspective for example, say the DV01 of 100m usd 2y rate swap is $19,500 (i.e. the risk of the exposure to a 1bp move), then in eurodollar futures terms, the 'delta' will be 19,500/25 (tick or bp value being $25) = 780 = 780 futs contract equivalent hedge... If you're receiving the 2yrs, can either describe risk as a 19,500 01, or long 780 delta - so yes they are simply different terms to describe the same thing (in the rates market - for the sake of simplicity assuming curve risks in front/red futures packs are equivalent to 2y point on curve etc...)