Measuring size of business process from use case description

The purpose of this paper is to present a new size metric for business process measurement. This metric aims to measure size of process from use case description. The metric consists of four series to support four perspectives of business process: functional, behavioral, informational and organizational. In addition, the guidance for pointing to related use case elements is included in each series. In this paper, each size of perspective which measured from the new metric can use for indicating the number of business process elements are represented by UML-activity diagram. Although the example of the metric is only one, it is possible to apply for another modeling method such as BPMN, Petri Net and EPC.