“…(TAO [1], Quarterware [2], COMERA [3], Spring [4]). Examples from the work in domainspecific properties and characteristics are real-time [5], load-balancing [6], QoS [7,8], performance and consistency [9]. Our work is on composable and customizable A&A mechanisms and belongs to middleware services research, which concentrates on such services as event notification [10], transactions and concurrency [11,12], and security.…”