Abstract
An approach to introducing exception handling into object oriented
N-version programming (NVP) is proposed. General principles of
structuring systems with diversity are outlined. The importance of using
exceptions while applying diversely developed software is shown.
Internal and external exceptions are clearly separated in our framework:
each version has its own internal exceptions but the external exceptions
of all versions have to be the same and identical to the interface
exceptions of the diversely designed class. This scheme requires an
adjudicator of a special kind to allow signalling interface exceptions
when a majority of versions have signalled the same exception. These
ideas are demonstrated using a general class diversity framework
developed recently. An Ada implementation is outlined
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
Cart
