As the use of web grows, organizations are increasingly choosing to use it to provide their services. The modeling process is a previous step in the systematization of a process. Due to the great number of modeling tools in existence, it is necessary to identify the information that tools allow to specify.
A set of concepts is proposed to evaluate modeling tools using three levels of abstractions. The proposal compares the modeling capabilities supplied by the different techniques and allows determining what modeling tool is the most appropriate to model specific concepts of interest to a problem.