There are different characteristics of what a profession entails of. Some characteristics, such as full graduate training are based on the more known professional modes such as law, medicine and engineering. The majority of critics have agreed on the similar aspects of an occupational group acquiring: a knowledge base, expertise in their field, a sense of autonomy and responsibility which makes them a profession. In regards to teaching, it has sufficient evidence to produce these requirements which enables them to be recognised as a profession in society.
Professions are known to have the power to maintain society and to be capable of providing the necessary services for people who are unqualified to evaluate situations. To provide service to society, it requires knowledge. With any occupational group known as a profession, they must be able to have a knowledge base which contains technical language and specialised knowledge that is above the norm of people in society. This knowledge base would enhance the power and status of any profession within a society. A knowledge base comprises of having higher education training preferably from a degree level. Through this training, it contributes to a student's knowledge base by building on a subject of a specified field which in turn, would be able to apply this subject content intelligently when he/she becomes professional' in their occupation. Different knowledge bases for different occupations depend on the content being taught in higher education and training. As the content and ideas of each subject are different according to the study being partaken, it shows that the knowledge is unique and is developed for a specific occupation.
Another approach towards an occupation becoming a profession consists of a knowledge base through experiences of practical work.