Typologies are studies or classifications of things that have common traits or characteristics. Typologies encompass of spectrums of fields. In religion for example there are theological typologies that deal with Christian beliefs that have common traits to things symbolized in the Old Testament. In the scientific field you would have typologies of such things as bacterial strains. In the medical field, typologies on such subjects as personality and human physique. However it is always wise to view typologies with an open mindset. For example, I have seen some stock market typologies that quote common cause and effect events that are more coincidence than scientific and leave much room for doubt whether than stand the test of time.
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