Notice of RetractionExtended Class Point Approach of size estimation for OO product

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Class Point is a method of system-level size estimation for Object-Oriented (OO) products, including measurement of CP1 and CP2. In this paper, we extend this method in two ways. First, we propose a size measurement named CP3 based the Class Point Approach to predict the maintenance effort. Second, in order to improve the precision of estimation, we take more impact factors into account. In the phase of estimating the total degree of influence to the unadjusted class point quantity, we not only consider the influence factors those are proposed in the original model but also the nontechnical influence factors such as management efficiency and developer´s professional competence. In the end, an empirical validation is carried out. We also present a comparative analysis to validate the practicability of this method. Result illustrates that the extended model behaves a little better than the original one.