Exploring Autonomic Options in an Unified Fault Management Architecture through Reflex Reactions via Pulse Monitoring

This paper investigates the potential of adding Autonomic capabilities to the telecommunications fault management architecture and highlights the importance of a reflex-healing dual strategy to facilitate this advanced automation. The reflex reaction is facilitated through the concept of a pulse monitor -- essentially the extension of the fault tolerant heartbeat monitor mechanism to incorporate reflex urgency levels and health check summary information

A software process improvement lifecycle framework for the medical device industry

This paper describes a software process improvement framework to ensure regulatory compliance for the software developed in medical devices. Software is becoming an increasingly important aspect of medical devices and medical device regulation. Medical devices can only be marketed if compliance and approval from the appropriate regulatory bodies of the Food and Drug Administration (FDA) [1] (US requirement), and the European Commission under its Medical Device Directives (MDD) [2] (CE marking requirement) is achieved. Integrated into the design process of medical devices, is the requirement of the production and maintenance of a device technical file, incorporating a design history file. Design history illustrates the well documented, defined and controlled processes and outputs, undertaken in the development of medical devices and for our particular consideration with this framework - the software components

Thermodynamic properties of a high pressure subcritical UF6/He gas volume (irradiated by an external source)

A computer simulation study concerning a compressed fissioning UF6 gas is presented. The compression is to be achieved by a ballistic piston compressor. Data on UF6 obtained with this compressor were incorporated in the simulation study. As a neutron source to create the fission events in the compressed gas, a fast burst reactor was considered. The conclusion is that it takes a neutron flux in excess of 10 to the 15th power n/sec sq cm to produce measurable increases in pressure and temperature, while a flux in excess of 10 to 19th power n/sq cm sec would probably damage the compressor

Behavior Monitoring in Self-healing Service-oriented Systems

Web services and service-oriented architecture (SOA) have become the de facto standard for designing distributed and loosely coupled applications. Many service-based applications demand for a mix of interactions between humans and Software-Based Services (SBS). An example is a process model comprising SBS and services provided by human actors. Such applications are difficult to manage due to changing interaction patterns, behavior, and faults resulting from varying conditions in the environment. To address these complexities, we introduce a self-healing approach enabling recovery mechanisms to avoid degraded or stalled systems. The presented work extends the notion of self-healing by consideringamixtureof human and service interactions observing their behavior patterns. We present the design and architecture of the VieCure framework supporting fundamental principles for autonomic self-healing strategies. We validate our self-healing approach through simulations