A method, comprising: initiating a test of an actuator in a process control system, wherein the test includes providing a varying control signal to the actuator, the varying control signal including a varying pressure signal; analyzing a response of the actuator to the varying control signal to determine if the actuator is suffering from one or more faults; and providing at least one notification identifying any identified faults; wherein analyzing the response of the actuator comprises: generating a raw pressurization curve for the actuator, the raw pressurization curve identifying how a pressure in the actuator varies over time in response to the varying pressure signal; and determining whether the actuator is suffering from excessive sticking and slipping by: selecting two polynomial curves corresponding to pressurization curves of a normal or healthy actuator that best fit the raw pressurization curve of the actuator, a first of the polynomial curves generally increasing during a "fill" phase of the test in which the control signal to the actuator increases, a second of the polynomial curves generally decreasing during an "exhaust" phase of the test in which the control signal to the actuator decreases; identifying a maximum positive deviation and a maximum negative deviation of the raw pressurization curve from each of the polynomial curves; summing the maximum positive and negative deviations for the polynomial curves; and determining if the sum exceeds a threshold. initiating a test of an actuator in a process control system, wherein the test includes providing a varying control signal to the actuator, the varying control signal including a varying pressure signal; analyzing a response of the actuator to the varying control signal to determine if the actuator is suffering from one or more faults; and providing at least one notification identifying any identified faults; wherein analyzing the response of the actuator comprises: generating a raw pressurization curve for the actuator, the raw pressurization curve identifying how a pressure in the actuator varies over time in response to the varying pressure signal; and determining whether the actuator is suffering from excessive sticking and slipping by: selecting two polynomial curves corresponding to pressurization curves of a normal or healthy actuator that best fit the raw pressurization curve of the actuator, a first of the polynomial curves generally increasing during a "fill" phase of the test in which the control signal to the actuator increases, a second of the polynomial curves generally decreasing during an "exhaust" phase of the test in which the control signal to the actuator decreases; identifying a maximum positive deviation and a maximum negative deviation of the raw pressurization curve from each of the polynomial curves; summing the maximum positive and negative deviations for the polynomial curves; and determining if the sum exceeds a threshold. generating a raw pressurization curve for the actuator, the raw pressurization curve identifying how a pressure in the actuator varies over time in response to the varying pressure signal; and determining whether the actuator is suffering from excessive sticking and slipping by: selecting two polynomial curves corresponding to pressurization curves of a normal or healthy actuator that best fit the raw pressurization curve of the actuator, a first of the polynomial curves generally increasing during a "fill" phase of the test in which the control signal to the actuator increases, a second of the polynomial curves generally decreasing during an "exhaust" phase of the test in which the control signal to the actuator decreases; identifying a maximum positive deviation and a maximum negative deviation of the raw pressurization curve from each of the polynomial curves; summing the maximum positive and negative deviations for the polynomial curves; and determining if the sum exceeds a threshold. selecting two polynomial curves corresponding to pressurization curves of a normal or healthy actuator that best fit the raw pressurization curve of the actuator, a first of the polynomial curves generally increasing during a "fill" phase of the test in which the control signal to the actuator increases, a second of the polynomial curves generally decreasing during an "exhaust" phase of the test in which the control signal to the actuator decreases; identifying a maximum positive deviation and a maximum negative deviation of the raw pressurization curve from each of the polynomial curves; summing the maximum positive and negative deviations for the polynomial curves; and determining if the sum exceeds a threshold.