| No. | Function Name | Type | Description |
| 1 | Review Meteorological Data | Background | Review of weather conditions for preflight planning and inspections |
| 2 | Aircraft Specifications | Background | Aircraft technical and operational information provided mainly by manufacturer |
| 3 | Regulations and Supervision | Background | Supervision and regulations provided by governmental agencies |
| 4 | ATC Supervision | Background | Clearances provided by the ATC to navigate aircraft on the airport grounds |
| 5 | Resources and Equipment | Organizational | Resources and equipment provided for the inspection and deicing operations |
| 6 | Training | Organizational | Training provided to the deicing personnel |
| 7 | Airliner Instructions & Guidelines | Organizational | Guidelines provided by the airliner for the flight crew and deicing personnel |
| 8 | DSP Instructions & Guidelines | Organizational | Guidelines provided by the Deicing Service Provider (DSP) to its personnel |
| 9 | Preflight Planning | Human | Flight planning performed by the pilot and the flight dispatcher |
| 10 | Flight Crew Supervision | Human | Supervision provided by the pilot and flight crew to monitor and control operations |
| 11 | Deicing Tower Control | Human | Supervision provided by the deicing tower or the bay-lead to monitor and control operations |
| 12 | Pre-deicing Inspection | Human | Inspection of the aircraft to decide if deicing/anti-icing is required |
| 13 | Taxi Aircraft to Deicing Pad | Human | Taxi aircraft from gate to the deicing pad |
| 14 | Deicing | Human | The application of deicing fluids and removal of contamination |
| 15 | Post-deicing Inspection | Human | Inspection after deicing to ensure all surfaces are clean |
| 16 | Anti-icing | Human | The application of anti-icing fluid to keep aircraft clean until take-off |
| 17 | Taxi to Runway | Human | Taxi aircraft from deicing pad to runway for takeoff within the specified holdover time |