**4.7 Differentiation of excipients with same functionality**

SeDeM-ODT expert system has been applied for the differentiation of excipients having the same chemical nature and function on the basis of physical

*SeDeM-ODT Expert System: A Solution to Challenges in Characterization of Pharmaceutical… DOI: http://dx.doi.org/10.5772/intechopen.92444*

**Figure 7.** *SeDeM diagram of different batches of glucosamine sulfate [35].*

characteristics [35]. For example, various disintegrants and diluents were characterized on the basis of the expert system [13], and the suitable one is selected for a particular formulation. Various parameters are determined according to the SeDeM expert system, deficiencies are defined, and an adequate substance can be selected to get a final blend suitable for direct compression. In a study [11] several lactose were characterized and differentiated on the basis of SeDeM expert system.
