This paper summarized the methods used to determine the relationship between cake properties and solid compressive pressure. The dynamic simulation method proposed by Lu and Hwang (Mechanism of cake formation in constant pressure filtration, Separation Technol. 3 (1993) 122-132) is modified by considering the variation of the pressure drop across the septum and specific surface area of particles. The importance of the accuracy of the value of epsilon(i) is also examined, and the effects of the operating condition, such as pressure and slurry concentration, are also discussed. The results of the obtained relationships between epsilon vs. P-s and a vs. P-s for different compactness materials through the proposed dynamic simulation method give the results very close to the corrected C-P Cell test data. To compare the reliability of the obtained local cake properties vs. P-s by various methods, the results obtained for different compactness materials are used to predict the performances of the constant pressure filtrations. The results of the dynamic simulation can give the best prediction with an average deviation around 4%, while the corrected C-P Cell test data may give an average deviation around 5%, and the uncorrected C-P Cell data gives an average deviation around 10%.