▁d ive ▁profile ▁to ▁reduce ▁the ▁risk ▁of ▁decom pression ▁sick ness ▁occurr ing ▁after ▁sur f acing ▁at ▁the ▁end ▁of ▁a ▁d ive . ▁The ▁algorithm ▁can ▁be ▁used ▁to ▁generate ▁decom pression ▁sched ules ▁for ▁a ▁particular ▁d ive ▁profile , ▁decom pression ▁tables ▁for ▁more ▁general ▁use , ▁or ▁be ▁implemented ▁in ▁d ive ▁computer ▁software . ▁Depending ▁on ▁the ▁algorithm ▁chosen ▁the ▁range ▁of ▁no - de com pression ▁limits ▁at ▁a ▁given ▁depth ▁on ▁the ▁same ▁gas ▁can ▁vary ▁consider ably . ▁It ▁is ▁not ▁possible ▁to ▁disc rim inate ▁between ▁" right " ▁and ▁" wr ong " ▁options , ▁but ▁it ▁is ▁considered ▁correct ▁to ▁say ▁that ▁the ▁risk ▁of ▁developing ▁D CS ▁is ▁greater ▁for ▁the ▁longer ▁expos ures ▁and ▁less ▁for ▁the ▁shorter ▁expos ures ▁for ▁a ▁given ▁depth . ▁ ▁D ive ▁tables ▁or ▁decom pression ▁tables ▁are ▁tab ulated ▁data , ▁often ▁in ▁the ▁form ▁of ▁printed ▁cards ▁or ▁book lets , ▁that ▁allow ▁divers ▁to ▁determine ▁a ▁decom pression ▁schedule ▁for ▁a ▁given ▁d ive ▁profile ▁and ▁breath ing ▁gas . ▁In ▁some ▁cases ▁they ▁may ▁also ▁specify ▁an ▁alt itude ▁range . ▁The ▁choice ▁of ▁tables ▁for ▁professional ▁div ing ▁use ▁is ▁generally ▁made ▁by ▁the ▁organization ▁employ ing ▁the ▁divers , ▁and ▁for ▁recre ational ▁training ▁it ▁is ▁usually ▁pres cribed ▁by ▁the ▁cert ifying ▁ag ency , ▁but ▁for ▁recre ational ▁purposes ▁the ▁diver ▁is ▁generally ▁free ▁to ▁make ▁use ▁of ▁any ▁of ▁the ▁range ▁of ▁published