Dear colleagues,
you are cordially invited to take part in our tutorial.
Best regards, Alexander Romanovsky
Tutorial: Architecting Fault Tolerant Systems
Sixth Working IEEE/IFIP Conference on Software Architecture
Mumbai, India
Call for Participation
January 7, 2007, (Half Day - PM)
http://www.gv.psu.edu/WICSA2007/tutorials.htm
Fault tolerance, being one of the four means for guaranteeing
dependability, is intended to ensure the delivery of the correct
services in the presence of active faults. It is implemented by
error detection and subsequent system recovery. Error detection
finds an erroneous system state. Following system recovery
transforms the system state that contains one or more errors
and (possibly) faults into a state without detected errors and faults
(fault handling). Exceptions and exception handling provide
a general framework for structuring the fault tolerance activities in
a system, by focusing on the concept of exceptional/abnormal
behaviour (as opposed to normal behaviour), exception handling
enables specifying actions to be undertaken in the presence of
abnormal events.
While typical solutions focus on fault tolerance (and specifically,
exception handling) during the design and implementation phases
of the software life-cycle (e.g., Java and Windows NT exception
handling), more recently the need for explicit exception handling
solutions during the entire life cycle has been advocated by
some researchers. Several solutions have been proposed for
fault tolerance via exception handling at the software
architecture and component levels.
This tutorial describes how the two concepts of fault tolerance and
software architectures have been integrated so far. It is structured
in two parts (Overview on Fault Tolerance and Exception Handling,
and Integrating Fault Tolerance into Software Architecture) and
is based on a survey study on architecting fault tolerant systems
where more than fifteen approaches have been analyzed and
classified. The tutorial concludes identifying those issues that
remain still open and require deeper investigation.
Lecturers:
H. Muccini, P. Pelliccione
Dipartimento di Informatica
University of L'Aquila, Italy
[muccini,pellicci]@di.univaq.it
A. Romanovsky
Center for Software Reliability
Newcastle University, UK
[log in to unmask]
|