▁implementation ▁sub - process . ▁This ▁picture ▁shows ▁the ▁integration ▁of ▁the ▁meta - process ▁model ▁( left ) ▁and ▁the ▁meta - data ▁model ▁( right ). ▁The ▁d otted ▁ar rows ▁indicate ▁which ▁concepts ▁are ▁created ▁or ▁adjust ed ▁in ▁the ▁activities ▁of ▁the ▁implementation ▁phase . ▁ ▁Figure ▁ 2 . 5 . 1 : ▁Process - data ▁model ▁Main ten ance ▁sub - process ▁ ▁The ▁maintenance ▁sub - process ▁starts ▁with ▁the ▁maintenance ▁of ▁the ▁service ▁level ▁agre ements ▁and ▁the ▁maintenance ▁of ▁the ▁oper ational ▁level ▁agre ements . ▁After ▁these ▁activities ▁take ▁place ▁( in ▁no ▁particular ▁order ) ▁and ▁there ▁is ▁a ▁request ▁for ▁a ▁change ▁the ▁request ▁for ▁change ▁activity ▁will ▁take ▁place ▁and ▁after ▁the ▁request ▁for ▁change ▁activity ▁is ▁concluded ▁the ▁reporting ▁activity ▁starts . ▁If ▁there ▁is ▁no ▁request ▁for ▁a ▁change ▁then ▁the ▁reporting ▁activity ▁will ▁start ▁directly ▁after ▁the ▁first ▁two ▁activities . ▁The ▁concepts ▁in ▁the ▁meta - data ▁model ▁are ▁created / ▁adjust ed ▁during ▁the ▁maintenance ▁phase . ▁For ▁a ▁list ▁of ▁the ▁concepts ▁and ▁their ▁definition ▁take ▁a ▁look ▁at ▁table ▁ 2 . 5 . 2 . ▁ ▁Table ▁ 2 . 5 . 2 : ▁Con cept ▁and ▁definition ▁Plan ▁sub - process ▁Security ▁management ▁ ▁Complete ▁process - data ▁model ▁Figure ▁ 2 . 6 . 1 : ▁Complete ▁process - data ▁model ▁Security ▁Management ▁process ▁ ▁Rel ations ▁with ▁other ▁IT IL ▁processes ▁▁ ▁The ▁Security ▁Management ▁Process , ▁as ▁stated