Two-Layer Web Architecture Multiple levels of indirection have overheads Alternative:two-layer architecture network web server and application server database server HTTP browser data server Database System Concepts-6th Edition 9.13 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 9.13 ©Silberschatz, Korth and Sudarshan th Edition Two-Layer Web Architecture Multiple levels of indirection have overheads Alternative: two-layer architecture