From fundamental concepts and theories to implementation protocols and cutting‎-edge applications‎,‎ the Handbook of Mobile Systems Applications and Services supplies a complete examination of the evolution of mobile services technologies‎.‎ It examines service‎-oriented architecture ‎(‎SOA‎)‎ and explains why SOA and service oriented computing ‎(‎SOC‎)‎ will play key roles in the development of future mobile services‎.‎ Investigating current service discovery frameworks‎,‎ the book covers the basics of mobile services and applications developed in various contexts‎.‎ The first section provides readers with the required background in mobile services architecture‎.‎ Next‎,‎ it details of middleware support for mobile services‎.‎ The final section discusses security and applications of mobile services‎.‎Containing the contributions of leading researchers and academics from around the world‎,‎ the book‎:‎ * Introduces a new location‎-based access control model * Unveils a simple‎,‎ yet powerful enhancement that enables Web services to locally mana‎.‎‎.‎‎.‎