The flowchart begins by initializing three integer variables a, b, c, and performs a series of comparison operations to determine their relative magnitudes. Using if-else statements, it checks whether a is greater than b, b is greater than c, and whether a is less than c. Based on the comparison results, the flowchart will execute different actions or output different messages. It serves as a useful tool for designers and developers to visualize and communicate the logic of the process.