(6) Dissimilation and global competition: The temporary group whose score is lower than the score of any mature superior one will be discarded. Likewise, the temporary group whose score is higher than the score of any mature superior one will replace the superior group. And new temporary groups will be produced at random to take place of the discarded groups.The new temporary groups will go through the Similar-taxiand local competition as well. Repeating the above process till the global optimum is found.