A method for processing sensor signals representing a wetness event in an absorbent article, the method comprising the steps of: providing an absorbent article comprising a sensor adapted to detect wetness events therein and a first clip-on data processing module in electrical communication with said sensor; providing a database comprising a plurality of information factors, wherein said information factors comprise individualized thresholds for a plurality of absorbent article conditions, each said individualized thresholds being allocated with a corresponding warning condition; receiving from the sensor, and/or clip-on data processing module, sensor signals representing a plurality of real-time indicators comprising wearing time; wetness events in an absorbent article; interval time between wetness events and/or duration of said wetness event within said absorbent article; processing the sensor signals to determine an absorbent article condition; characterised in that processing the sensor signals includes combining the information factors with the real-time indicators and, from the sensor signals representative of each individual wetness event: (i) assigning a position of said wetness event within an x, y coordinates of the absorbent article; (ii) grouping wetness event indicators, such as amount of exudate within said wetness event, according to a common position according to step (i); (iii) normalizing the values of the real-time indicators, from the sensor signals; (iv) allocating weightings to the normalised values to generate weighted values for that wetness event; and wherein the weighted values and grouped wetness event indicators are combined to generate a combined event indicator that is compared with the information factors and when the combined event indicator is equal to one or more of the information factors a signal is generated, preferably by the clip-on data processing module, according to the one or more corresponding warning conditions. providing an absorbent article comprising a sensor adapted to detect wetness events therein and a first clip-on data processing module in electrical communication with said sensor; providing a database comprising a plurality of information factors, wherein said information factors comprise individualized thresholds for a plurality of absorbent article conditions, each said individualized thresholds being allocated with a corresponding warning condition; receiving from the sensor, and/or clip-on data processing module, sensor signals representing a plurality of real-time indicators comprising wearing time; wetness events in an absorbent article; interval time between wetness events and/or duration of said wetness event within said absorbent article; processing the sensor signals to determine an absorbent article condition; characterised in that processing the sensor signals includes combining the information factors with the real-time indicators and, from the sensor signals representative of each individual wetness event: (i) assigning a position of said wetness event within an x, y coordinates of the absorbent article; (ii) grouping wetness event indicators, such as amount of exudate within said wetness event, according to a common position according to step (i); (iii) normalizing the values of the real-time indicators, from the sensor signals; (iv) allocating weightings to the normalised values to generate weighted values for that wetness event; (i) assigning a position of said wetness event within an x, y coordinates of the absorbent article; (ii) grouping wetness event indicators, such as amount of exudate within said wetness event, according to a common position according to step (i); (iii) normalizing the values of the real-time indicators, from the sensor signals; (iv) allocating weightings to the normalised values to generate weighted values for that wetness event; and wherein the weighted values and grouped wetness event indicators are combined to generate a combined event indicator that is compared with the information factors and when the combined event indicator is equal to one or more of the information factors a signal is generated, preferably by the clip-on data processing module, according to the one or more corresponding warning conditions.