Justice, in its broadest context, includes both the attainment of that which is just and the philosophical discussion of that which is just. The concept of justice is based on numerous fields, and many differing viewpoints and perspectives including the concepts of moral correctness based on ethics, rationality, law, religion, equity and fairness. Often, the general discussion of justice is divided into the realm of social justice as found in philosophy, theology and religion, and, procedural justice as found in the study and application of the law. The impact factor of the journal provides a quantitative assessment tool for grading, evaluating, sorting, and comparing journals of a similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years