Read e-book online Architecting Dependable Systems III PDF

By Nikolaos Georgantas, Sonia Ben Mokhtar, Ferda Tartanoglu, Valérie Issarny (auth.), Rogério de Lemos, Cristina Gacek, Alexander Romanovsky (eds.)

ISBN-10: 3540289682

ISBN-13: 9783540289685

As software program structures turn into ubiquitous, the problems of dependability turn into progressively more the most important. on condition that recommendations to those concerns needs to be thought of from the very starting of the layout strategy, it's average that dependability is addressed on the architectural point. This e-book comes due to an attempt to collect the examine groups of software program architectures and dependability.

This state of the art survey comprises sixteen rigorously chosen papers originating from the dual Workshops on Architecting accountable structures (WADS 2004) entire as a part of the foreign convention on software program Engineering (ICSE 2004) in Edinburgh, united kingdom and of the foreign convention on liable platforms and Networks (DSN 2004) in Florence, Italy. The papers are organised in topical sections on architectures for liable companies, tracking and reconfiguration in software program architectures, dependability aid for software program architectures, architectural review, and architectural abstractions for dependability.

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Thus, Address represents a reference of a mobile service component accessible through a specific connector and underlying transport layer. Address is a subclass of Parameter. Connector is further related to a set of messages exchanged in the related interaction protocol, which are members of the class Message. This is the same generic class used for component-level messages, as it also applies very well to connectorlevel messages. Communication between connectors can naturally be modeled as exchange of one-way messages; this takes place on top of the underlying transport layer.

1 to assert conformance between connector interaction models would not be easy to implement based simply on XML schemas. OWL reasoning tools shall be employed by the introduced conformance relations and interoperability methods. A number of such tools already exist, such as the ones discussed in the previous section. , the middleware, and be carried out online. 1; they shall as well function with an acceptable runtime overhead. These requirements are even more challenging if we take into account the resource constraints of wireless devices.

To be most generic, we enable connector-level messages to carry complete addressing information, assuming no addressing information added by the transport layer; certainly, this scheme may easily be adapted according to the addressing capabilities of the transport layer. We introduce two subclasses of Address, named LocalAddr and RemoteAddr, which represent the local address and remote address information included in a connector-level message exchanged between two peer connectors. Remote address information is used to route the message to its destination, while local address information identifies the sender and may be used to route back a possible response message.

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Architecting Dependable Systems III by Nikolaos Georgantas, Sonia Ben Mokhtar, Ferda Tartanoglu, Valérie Issarny (auth.), Rogério de Lemos, Cristina Gacek, Alexander Romanovsky (eds.)

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