An Evaluation Framework for Component-Based and Service-Oriented System Development Methodologies

Author(s):  
Zoran Stojanovic ◽  
Ajantha Dahanayake ◽  
Henk Sol
Author(s):  
Zoran Stojanovic ◽  
Ajantha Dahanayake ◽  
Henk Sol

Components-Based Development (CBD) and Web Services (WS) nowadays are prominent paradigms for implementing and deploying advanced distributed information systems. They have been proposed as the ways to support effective business/IT alignment and produce high quality and flexible software solutions that fulfill business goals within short time-to-market. However, current achievements in these areas at the level of methodology are much behind the technology ones. CBD methods proposed so far lack a comprehensive support for component and service concepts throughout the development process. By treating components as packages of implementation artifacts during software deployment or as larger-grained business objects during analysis and design, these methods are not well equipped for modeling loosely coupled coarse-grained components that offer business meaningful services organized in a Service-Oriented Architecture (SOA). This chapter presents an evaluation framework that highlights the extent to which a particular method is component-based and service-oriented. The CBD method sample is selected and evaluated using the framework’s concepts and requirements. Based on the evaluation, the method improvements are proposed in order to provide consistent, systematic, and integrated CBD and WS methodology support throughout the lifecycle.


Author(s):  
Remigijus Gustas

This chapter presents a pragmatic-driven approach for service-oriented information system analysis and design. Its uniqueness is in exploiting a design foundation for graphical description of the semantic and pragmatic aspects of business processes that is based on the service-oriented principles. Services are viewed as dynamic subsystems. Their outputs depend not only on inputs, but on a service state as well. Intentions of business process experts are represented in terms of a set of pragmatic dependencies, which are driving the overall system engineering process. It is demonstrated how pragmatic aspects are mapped to conceptual representations, which define the semantics of business design. In contrast to the traditional system development methodologies, the main difference of the service-oriented approach is that it integrates the static and dynamic aspects into one type of diagram. Semantics of computation independent models are expressed by graphical specifications of interactions between service providers and service consumers. Semantic integrity control between static and dynamic dependencies of business processes is a one of the major benefits of service-oriented analysis and design process. It is driven by pragmatic descriptions, which are defined in terms of goals, problems and opportunities.


2007 ◽  
Vol 1 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Wei-Tek Tsai ◽  
Xiao Wei ◽  
Ray Paul ◽  
Jen-Yao Chung ◽  
Qian Huang ◽  
...  

2010 ◽  
Vol 20-23 ◽  
pp. 992-997 ◽  
Author(s):  
Qing Wu ◽  
Shi Ying ◽  
You Cong Ni ◽  
Hua Cui

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.


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