Exception and exception handling in service-oriented processes

2012 ◽  
Author(s):  
Lv Guobin ◽  
Wang Quanyu ◽  
Jiang Lingyan
Keyword(s):  
Exception Handling ◽  
Service Oriented

A Two Phases Self-healing Framework for Service-oriented Systems

2021 ◽  
Vol 15 (2) ◽  
pp. 1-25
Author(s):  
Amal Alhosban ◽  
Zaki Malik ◽  
Khayyam Hashmi ◽  
Brahim Medjahed ◽  
Hassan Al-Ababneh
Keyword(s):  
Web Services ◽  
A Priori ◽  
Fault Management ◽  
Service Selection ◽  
Exception Handling ◽  
Self Healing ◽  
Service Oriented Architectures ◽  
Service Oriented ◽  
Improved Performance ◽  
High Level

Service-Oriented Architectures (SOA) enable the automatic creation of business applications from independently developed and deployed Web services. As Web services are inherently a priori unknown, how to deliver reliable Web services compositions is a significant and challenging problem. Services involved in an SOA often do not operate under a single processing environment and need to communicate using different protocols over a network. Under such conditions, designing a fault management system that is both efficient and extensible is a challenging task. In this article, we propose SFSS, a self-healing framework for SOA fault management. SFSS is predicting, identifying, and solving faults in SOAs. In SFSS, we identified a set of high-level exception handling strategies based on the QoS performances of different component services and the preferences articled by the service consumers. Multiple recovery plans are generated and evaluated according to the performance of the selected component services, and then we execute the best recovery plan. We assess the overall user dependence (i.e., the service is independent of other services) using the generated plan and the available invocation information of the component services. Due to the experiment results, the given technique enhances the service selection quality by choosing the services that have the highest score and betters the overall system performance. The experiment results indicate the applicability of SFSS and show improved performance in comparison to similar approaches.

The Architecture Framework with Exception Handing in SOA

2010 ◽  
Vol 20-23 ◽  
pp. 992-997 ◽  
Author(s):  
Qing Wu ◽  
Shi Ying ◽  
You Cong Ni ◽  
Hua Cui
Keyword(s):  
Exception Handling ◽  
Software Systems ◽  
Separation Of Concerns ◽  
Clear Separation ◽  
Reliable Service ◽  
Architecture Framework ◽  
Service Oriented ◽  
Business Function ◽  
Oriented System

Service-oriented software systems are inherently complex and have to cope with an increasing number of exceptional conditions in order to meet the system’s dynamic requirements. This work proposes an architecture framework which has exception handling capability. This framework ensures the credibility of service-oriented software, during the architectural stage, by adding exception handling-related architecture elements and modeling exception handling process. It allows a clear separation of concerns between the business function and the exception handling unit, using reflection mechanism. It plays an important guiding role for achieving reliable service-oriented system.

A BPEL-Based Fault-Handling Architecture for Telecom Operation Support Systems

2010 ◽  
Vol 14 (5) ◽  
pp. 523-530 ◽  
Author(s):  
Ing-Yi Chen ◽  
◽  
Guo-Kai Ni ◽  
Cheng-Hwa Kuo ◽  
Chau-Young Lin ◽  
...  
Keyword(s):  
Service Composition ◽  
Service Oriented Architecture ◽  
Stable State ◽  
Exception Handling ◽  
Fault Handling ◽  
Service Oriented ◽  
Business Process Execution ◽  
Telecom Operation

Exception handling is an important issue in dependable software computing. This paper presents a system architecture and explains the role of responsibility of each component that is introduced in the architecture. The design is used to ensure the constructed service-oriented applications remain in a stable state. Service-Oriented Architecture is a paradigm for constructing current enterprise applications. It uses service composition technology to induce existing service components to provide advanced services. The most important concept in this methodology is that of reusing existing components. Business Process Execution Language (BPEL) is widely used for achieving service composition, providing basic capability for developers to deal with faults using defined activities standard in BPEL. No sufficient design, however, supports developers in implementing fault-handling components efficiently. The architecture proposed in this paper provides the design approach to explain how to reuse the fault-handling components. Additionally, the paper also provides an empirical case study that illustrates how this design was used by the Chunghwa Telecom Company in an effort to improve efficiency in implementing fault-handling components and in constructing service-oriented applications. The number of fault-handling components required was reduced from 38 to 3, implying a 92.10% efficiency rate.

A Framework for Handling with Web Services Exception

2010 ◽  
Vol 121-122 ◽  
pp. 287-293
Author(s):  
Chuan Chang Liu
Keyword(s):  
Web Services ◽  
Service Oriented Architecture ◽  
Exception Handling ◽  
Loose Coupling ◽  
Heterogeneous Platforms ◽  
Lightweight Framework ◽  
Business Applications ◽  
Monitoring Mechanism ◽  
Service Oriented

Service oriented architecture presents us with a standards-based architecture for developing modular business applications and a lightweight framework for the business integration across heterogeneous platforms. However, due to the traits such as loose coupling, autonomy and distribution of web services, service oriented architecture is inherently vulnerable to exceptions. Moreover, the traditional exception handling strategies can hardly handle with the exceptions occurred in service oriented architecture. Based on the idea that exception management should be implemented in the system infrastructure, the paper presents a novel web services working framework with exception handling capability, including exception definition, exception handling policies, exception monitoring mechanism and handling process. The framework can dynamically monitor and handle with the exceptions that occur during the execution of web services.

Verifying integrity of exception handling in service-oriented software

2017 ◽  
Vol 8 (1) ◽  
pp. 7 ◽  
Author(s):  
Tong Xue ◽  
Shi Ying ◽  
Qing Wu ◽  
Xiangyang Jia ◽  
Xiaohui Hu ◽  
...  
Keyword(s):  
Exception Handling ◽  
Service Oriented
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