Common usages, at the same time, represent foundation stones creating structure of any one of merit system. These System of merits constitute a justification gradually to a special law system or a clause of Law in that system according to situation of the social structure. Common usages incorporate functions arranging and designating relationships, behaviours, attitudes and manners between individual and individual, individual and family, individual and neighbours and relatives, individual and people and nation. Common usages which keep every member of the society continuously under pressure ensure an individual to be in unison with any group, community or society by means of their obligatory enforcing or prohibitive sanctions. On the other hand various common usages that have been defined according to sex, age, class and occupations are vested with also the power to preserve , supervise, reinforce and control connections between them.
Customs are effective in orderly way of social life, in execution of rules.
In a society in addition to customs covering all of society, there are also specific customs concerning various professions, denominations, ethnic group, etc. There are groups of age and sex, religious leaders, managers of associations, heads of play group who ensure gradually that practical application of customs become traditional, assume task knowingly or unknowingly. While some customs are rather stationary and continuous, some of them are of a nature to change in time. In narrower meaning however they are viewpoints of a society on significant matters such as sacred and political affairs throughout generations. Traditions are divided into two, verbal and written.