Service Based Cooperation Patterns to Support Flexible Inter-Organizational Workflows

Abstract

Service Oriented Architecture (SOA) is a paradigm that provides important advantages like interoperability, reusability and flexibility, particularly beneficial for B2B applications. In the current paper, we consider specific architectures of inter-organizational workflows (IOWF) fairly widespread in the B2B area and implementing different cooperation schemas. Our aim is to propose new generic IOWF-architectures by using the SOA paradigm in order to obtain IOWF models flexible enough to ease their adaptation, evolution and reuse. For that, we introduce the concept of Service-Based Cooperation Pattern (SBCP) that supports the definition of IOWF models based on services. A SBCP is defined by three main dimensions: the distribution of services, the control of execution and the structure of interaction between services. Also, we define a concept of composite cooperation pattern based on the combination of elementary patterns. We illustrate our approach by a general description of our cooperation framework called "S-IOFLOW" that supports the implementation of IOWF models obeying to the described SBCP. Three main points characterize our approach: (i) the use of a pattern-based approach; (ii) the definition of composite patterns by reusing elementary ones and (iii) the support of several cooperation schemas with different types of control.

Protecting Hybrid Information Transmission Network from Natural and Anthropogenic Hazards

“…Accident when automating the actions of a human-operator, performing erroneous actions that do not allow to avoid the accident or eliminate it, as well as provoke an accident 3. Accident caused by external hazards of a natural nature [6,18,19] Damages related to dangerous geophysical, geological, meteorological or hydrological phenomena, soil or subsoil degradation, fire in natural ecological systems, changes in the state of the air basin, infectious diseases and poisoning of people, infectious diseases of domestic animals, mass death of wild animals, damage to crops plant diseases and pests, etc. [18] 4.…”

“…External events of anthropogenic nature: 4.1. Accident caused by man-made damages [6,18,19] Damages as a result of a traffic accident (catastrophe), fire, explosion, accident with the release (threat of release) of dangerous chemical, radioactive and biologically dangerous substances, sudden destruction of buildings; accidents in electric power systems, life support systems, telecommunication systems, on treatment facilities, in systems of oil and gas industrial complex, hydrodynamic accidents, etc. [18]; -conditions when the number of service requests exceeds the established capabilities of the fixed network area [20] 4.2.…”

SQUIREL: Semantic Querying Interlinked OWL-S traveling Process Models

“…The matrix have zeros diagonal with no self loop that implies all services are independent on itself and form an acyclic dependency on it. Therefore, parsing the nested structure of OWL-S control structures in a top-down manner allow us to rewrite logically each complex structured process (choice, if-then-else, split+join and split) [23] to a simpler form in terms of sequence control construct as below:…”

Assessing the Behaviour of Web Services using Finite States

“…This can be answered by knowing the behaviour of web-services in detail. In this work we have proposed an architecture on capturing the run-time behaviour of a WS, and this answers which WS to prefer based on the organization"s requirement [17]. A finite set of states are identified which depicts the behaviour of the WS during runtime.…”