1.1 Perspectives of Pervasive Computing1.1.1 Technology Trend Overview1.1.2 Pervasive Computing: Concepts1.2 Challenges1.3 Technology1.3.1 Middleware1.3.2 Context Awareness1.3.3 Resource Management1.3.4 Human–Computer Interaction1.3.5 Pervasive Transaction Processing1.3.6 User Preference and RecommendationsReferences