Citation metrics are a way of measuring the relative importance or impact of an author, an article or a publication by counting the number of times that author, article, or publication has been cited by other works.
Why consider citation metrics?
Citation metrics analysis may be conducted for following purposes:
To establish the impact that a particular work has had by identifying which other authors based their work upon it or cited it within their own papers.
To learn more about a field or a topic by identifying seminal works in that area.
To determine what impact a particular author has had within his/her own discipline and beyond by looking at his/her total number of citations broken down by discipline and by country.
For promotion and tenure purposes by looking at the quality of sources where a scholar’s work has been published and cited