An ideology is literally a structured ideal, systematically created as follows:Premise: The basic concepts of the ideal state or objective of the ideology
Correlatives: The working principles used to achieve the ideal
Rules and laws: The requirements for conformity with the ideal
Ideologies may be based on religious, social, political, or economic grounds. In many cases, they're a combination of these elements. In practice, they tend to expand and become more complex as the practical issues related to the concept, principles, rules and laws become more involved.
Examples of Ideology:
Socialism- Started out as a particularly complex socio economic ideology, and devolved into a series of related but antagonistic ideologies:Marxism
Karl Marx posits that a society's dominant ideology is integral to its superstructure.