depth ▁assess ments . ▁Within ▁the ▁field ▁of ▁H RA , ▁there ▁is ▁a ▁lack ▁of ▁theoretical ▁foundation ▁for ▁the ▁technique , ▁as ▁is ▁widely ▁acknowled ged ▁throughout . ▁ ▁TE SE O ▁Method ology ▁When ▁putting ▁this ▁technique ▁into ▁practice , ▁it ▁is ▁necessary ▁for ▁the ▁designated ▁H RA ▁ass essor ▁to ▁thoroughly ▁consider ▁the ▁task ▁requiring ▁assess ment ▁and ▁therefore ▁also ▁consider ▁the ▁value ▁for ▁Kn ▁that ▁applies ▁in ▁the ▁context . ▁Once ▁this ▁value ▁has ▁been ▁decided ▁upon , ▁the ▁tables , ▁previously ▁mentioned , ▁are ▁then ▁consult ed ▁from ▁which ▁a ▁related ▁value ▁for ▁each ▁of ▁the ▁identified ▁factors ▁is ▁found ▁to ▁allow ▁the ▁H EP ▁to ▁be ▁calculated . ▁ ▁Work ed ▁Example ▁Prov ided ▁below ▁is ▁an ▁example ▁of ▁how ▁TE SE O ▁method ology ▁can ▁be ▁used ▁in ▁practice ; ▁each ▁of ▁the ▁stages ▁of ▁the ▁process ▁described ▁above ▁are ▁worked ▁through ▁in ▁order . ▁ ▁Context ▁An ▁operator ▁works ▁on ▁a ▁production ▁transfer ▁line ▁that ▁oper ates ▁between ▁two ▁t anks . ▁His ▁role ▁is ▁to ▁ensure ▁the ▁correct ▁product ▁is ▁selected ▁for ▁transfer ▁from ▁one ▁tank er ▁to ▁the ▁other ▁by ▁operating ▁rem ot ely ▁located ▁val ves . ▁The ▁essential ▁val ves ▁must ▁be ▁opened ▁to ▁perform ▁the ▁task . ▁ ▁The ▁operator ▁poss esses ▁average ▁experience ▁for ▁this ▁role . ▁The ▁individual ▁is ▁in ▁a ▁control ▁room ▁that ▁has ▁a ▁relatively ▁no isy ▁environment ▁and ▁poor ▁light ing . ▁There ▁is ▁a ▁time ▁window ▁of ▁five ▁minutes ▁for ▁the ▁required ▁task .