The services sector has been growing rapidly in recent years and now accounts for over half of GDP in many economies. Services range from intangible activities to physical products that have significant service components. Key characteristics of services include intangibility, inseparability of production and consumption, variability, and perishability. Customer expectations, experiences, and perceptions of quality are influenced by interactions with employees, facilities, other customers, and processes. Managing service quality involves minimizing gaps between customer expectations and actual delivery. Customer satisfaction also depends on how companies handle complaints and adapt to customers' needs.