4. Discussion and conclusion
In the airline industry, safety and serviceability are conducted by FAA, ICAO and IATA regulations and policies. There are many factors that affect the safety index and airline service such as aircraft characteristics and maintenance conditions, crew operations, air traffic control, weather conditions and airline management business strategies (Liou et al., 2007). According to the three case studies, service quality and safety contradictions may impact on airline image. Using inventive TRIZ principles to solve these con- flicts provides a unique way of systematic thinking, by improving airline safety and service quality management integration to enhance airline image (Chai et al., 2005). Understanding the TRIZ contradictions as applied to the airline business will promote top quality service.