Measuring the performance of SMEs is a complex and challenging job. The main challenges for measuring SME performance are as follows: First, collecting performance information from private SMEs is often difficult due to lack of historical information and accessibility. The information is often imperfect and its accuracy is difficult to verify even if the information can be obtained. For example, traditional financial measures of performance are often not available. This is because SMEs usually have a small starting base, a huge and uneven growth rate, and spotty record keeping. Many measures, such as future profits and survival, require a longitudinal sample design. However, it is not appropriate to use such measures on an SME, due to the short operational history of the group. Most SMEs focus on day-to-day operations. There may not be enough resources to perform a complete PM measurement. Finally, decision-making processes in SMEs are not always formalized and their strategies are often poorly planned, which influences the standard PM system used in SMEs.. ...