Title :
QoS-based flexibility in distributed systems
Author :
Kanezuka, Tetsuo ; Takizawa, Makota
Author_Institution :
Dept. of Comput. & Syst. Eng., Tokyo Denki Univ., Japan
Abstract :
This paper discusses how to make a distributed object system flexible so as to satisfy the application´s requirement in the change of the system environment. Each object supports other objects with quality of service (QoS). The change of the system is modeled to be the change of QoS supported by the objects. We discuss relations among the operations with respect to QoS, i.e. QoS-based equivalency and compatibility of the operations. By using the QoS-based relations, we newly discuss a QoS-based compensating way to recover from the less qualified state. Finally, we discuss QoS-based replicas of objects
Keywords :
computer networks; fault tolerant computing; QoS-based flexibility; QoS-based replicas of objects; compatibility; distributed object system; distributed systems; equivalency; quality of service; Checkpointing; Delay; Electrical capacitance tomography; Electronic switching systems; Encapsulation; Fault tolerant systems; Protocols; Quality of service; Systems engineering and theory;
Conference_Titel :
Information Networking, 1998. (ICOIN-12) Proceedings., Twelfth International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-8186-7225-0
DOI :
10.1109/ICOIN.1998.648362
