The institutional process is essentially an outcome and a reflection of political action. It is therefore understandable that political institutions have always interested not only political thinkers and politicians, but also those nations and groups which are struggling to set up, reorganize or abolish any given political institutions.

Their importance lies, too, in the fact that they reflect fundamental political aspirations and relationships. They are more or less the true image of a political system and of the structure of a society at a given epoch. But when seen in a more general perspective, institutions are merely the framework of power, The complexity of and problems inherent in society, its permanent need for further material, cultural and political development have led to an expansion of the institutional structure of political society. This expansion is brought about by political organizations, especially by political parties, as well as by other organizations, such as trade unions, citizens’ associations, pressure groups, etc.