The internet and IS (INFORMATION SYSTEM) has greatly influence the business or e commerce. In this paper we will discuss about what is e-commerce? Measurement of e-commerce, measurement issue of e-commerce and also discuss about the measurement strategy. The (Delone) and (Mclean) information systems success model will also be discussed in this paper. The paper will facilitate the reader with the basic concept of the e-commerce and clear understanding of measurement and measurement issues of e-commerce.