The goal of this work was to analyze the social representations that women of three different age groups had about aging, rejuvenating, and methods of rejuvenation. The research was performed in São Paulo between 2004 and 2005. The participants of this research were three groups of women of different ages: 19 to 24 years, 25 to 35 years, and over 60 years. The data were collected by the focus g...

Advancement in electronics and hardware has resulted in multiple softwares running on the same hardware. The result is multiuser, multitasking, multithreaded and virtualized environments. However, reliability of such high performance computing system depends both on hardware and software. For hardware, aging can be dealt with replacement. But, software aging needs to be dealt with different tec...

We present a framework of adaptive estimation and rejuvenation of software system performance in the presence of aging sources. The framework specifies that a degradation model not only describe an aging process but also enable the adaptation of model-based performance estimates to on-line measurements of data pertaining to the aging process. The adaptive estimation uses model-based a priori es...

In order to reduce system outages and the associated downtime cost caused by the “software aging” phenomenon, we propose to use software rejuvenation as a proactive system maintenance technique deployed in a CMTS (Cable Modem Termination System) cluster system. Different rejuvenation policies are studied from the perspective of implementation and availability. To evaluate these policies, stocha...