Sometimes is considered as synonymous to dogma, or to a set of narrow-minded ideas embraced by fanatics who differentiate themselves from the rest members of a group, ideology and its function in modern societies is the topic of the discussion in this article. According to the mainstream dictionary definitions ideology is a meaningful social system of beliefs where every action derives. Accordingly ideology is closely interrelated to the goals set by interactional units of society, such as persons, minority groups or even the large majority. However ideology is not a system that stands outside society but 
derives from society. In many ways ideology resembles a discourse or text which has many different readings and creates different perceptions depending on the people and their background.
This interrelation of ideology with society poses the problem of the roots of such a system of ideas. In fact this problem cannot be solved just by naming an array of groups of people, furthermore, nothing can define a set o people, but a name, which people assing to a group in order to distinguish it from another group, identifying in this way a difference in group dynamics and in the way groups approach social, moral or other issues. However we will persist on this in order to give some examples of well accepted social entities that produce ideology.
First of all the community as a whole is carrier of the so called oral tradition i.e. a set of beliefs, stories and philosophies that go from generation to generation. Oral tradition carries the standards that pass through stories and other means to the younger generations. The development of writing surely confined oral tradition and turned oral societies to literate ones, without, however success in diminishing peoples’ oral memory.
Plato in his book “Res Puclica” speaks about the foundational myth, a story that members of a nation or state adopt in order to discriminate themselves as a group from other states and nations. Plato considers foundational myth as very important for the success of the state. Examples of foundational myths can be found in modern nations as well defining in this way their origins. Accordingly Plato 
admits that ideology whether it has real bases or not it is crucial for the development of a country.
Liberalism, communism etc. constitute different administrative systems in different countries bearing different kinds of ideologies. It is not unusual at all for people to immediately associate an administrative system with an ideology. Even political parties’ stand is usually related to ideology. For example the major opposition party (Πασόκ) in Greece after an election defeat in 2007 fell in a political crisis which was attributed to an assumed blurred ideology. However it is often difficult to discriminate the different perceptions or the different readings that political parties do to certain situations if we exclude some exceptional occurrences such as the communist party in Greece that holds a clear-cut policy for most of the cases.
The same is true for many other factors considered as ideology producers. To enumerate some: first the church as a vehicle of religious beliefs, produces certain ideological frames; second the approved by the state-country educational philosophy that transfers to student the majority class’s ideology; third economical factors and social position related to these factors were considered by Marx as crucial to the production of the so called class ideology but this is not always the case since people of the same financial standards and social positions may have different ideologies and thus different political views. Just to make an account of all the factors is quite complicated task.
