▁as ▁Microsoft ▁Excel . ▁Since ▁ 2 0 0 1 , ▁the ▁increasing ▁volume ▁( amount ▁of ▁data ), ▁velocity ▁( speed ▁of ▁data ▁in ▁and ▁out ), ▁and ▁variety ▁( range ▁of ▁data ▁types ▁and ▁sources ) ▁has ▁created ▁a ▁vac u um ▁for ▁talent . ▁Harvard ▁Business ▁Review ▁noted : ▁“ M uch ▁of ▁the ▁current ▁enthus ias m ▁for ▁big ▁data ▁focus es ▁on ▁techn ologies ▁that ▁make ▁t aming ▁it ▁possible , ▁including ▁H adoop ▁( the ▁most ▁widely ▁used ▁framework ▁for ▁distributed ▁file ▁system ▁processing ) ▁and ▁related ▁open - source ▁tools , ▁cloud ▁computing , ▁and ▁data ▁visual ization ,” ▁the ▁article ▁says . ▁“ Wh ile ▁those ▁are ▁important ▁break through s , ▁at ▁least ▁as ▁important ▁are ▁the ▁people ▁with ▁the ▁skill ▁set ▁( and ▁the ▁mind - set ) ▁to ▁put ▁them ▁to ▁good ▁use . ▁On ▁this ▁front , ▁demand ▁has ▁rac ed ▁ahead ▁of ▁supply . ▁Indeed , ▁the ▁short age ▁of ▁data ▁scient ists ▁is ▁becoming ▁a ▁serious ▁constraint ▁in ▁some ▁se ctors .” ▁ ▁See ▁also ▁▁ ▁Big ▁Data ▁ ▁Machine ▁Learning ▁ ▁Data ▁M ining ▁ ▁Pred ict ive ▁Anal ytics ▁ ▁Dec ision ▁Theory ▁ ▁E TL ▁ ▁Data ▁Management ▁ ▁Data ▁W are house ▁ ▁Oper ations ▁research ▁ ▁Network ▁science ▁ ▁Ag ile ▁ ▁References ▁▁ ▁Category : Master ' s ▁degrees <0x0A> </s> ▁B ▁Train ▁may ▁refer ▁to ▁the ▁following : ▁The ▁B ▁( New ▁York ▁City ▁Sub way ▁service ) ▁in ▁New ▁York ▁City