Quality of Working Life is not a unitary concept, but has been seen as incorporating a hierarchy of perspectives that not only include work-based factors such as job satisfaction, satisfaction with pay and relationships with work colleagues, but also factors that broadly reflect life satisfaction and general feelings of well-being (Danna & Griffin, 1999).[12] More recently, work-related stress and the relationship between work and non-work life domains (Loscocco & Roschelle, 1991)[13] have also been identified as factors that should conceptually be included in Quality of Working Life.