Figure 5 and 6, show average values of NOM/NOC where it refers to the values of WMC, RFC, and LCOM. On the other hand, since the OO feature of NOC and DIT is inheritance, the values of Average Number of Derived Classes (ANDC) and Average Hierarchy Height (AHH) metric are taken to represent the values of NOC and DIT. In this case, both NOC and DIT have high values. Besides that, the low value of FANOUT/CALLS in Figure 5 and 6 indicate the value of CBO since the Object Oriented feature of CBO is coupling. Table 3 shows the relationship between CK metric, OO software quality concepts, and OO features [23].