A Case Study on Integrating Extra-Functional Properties in Web Service Model-Driven Development

Author(s):  
Guadalupe Ortiz ◽  
Juan Hernandez
Author(s):  
Guadalupe Ortiz ◽  
Juan Hernández

For the last few years, model-driven architecture, aspect-oriented software development and Web service engineering have become widely accepted alternatives for tackling the design and building of complex distributed applications; however, each of them addresses the principle of separation of concerns from their own perspective. When combined appropriately, both model-driven and aspect-oriented software development complement each other to develop high-quality Web service-based systems, maintaining non-functional properties separate from models to code. This chapter provides a methodology that integrates non-functional properties into Web service model-driven development, increasing the systems’ modularity and thus reducing implementation and maintenance costs.


Author(s):  
Hong Guo ◽  
Hallvard Trætteberg ◽  
Alf Inge Wang ◽  
Shang Gao

2015 ◽  
Vol 12 (2) ◽  
pp. 683-705 ◽  
Author(s):  
Jaroslav Porubän ◽  
Michaela Bacíková ◽  
Sergej Chodarev ◽  
Milan Nosál’

Model-driven software development is surrounded by numerous myths and misunderstandings that hamper its adoption. For long, our students were victims of these myths and considered MDSD impractical and only applied in academy. In this paper we discuss these myths and present our experience with devising an MDSD course that challenges them and motivates students to understand MDSD principles. The main contribution of this work is a set of MDSD teaching guidelines that can make the course pragmatic in the eyes of students - programmers. These guidelines introduce MDSD from the viewpoint of a programmer as a pragmatic tool for solving concrete problems in the development process. In our MDSD course we implemented the presented guidelines. The course shows several techniques and principles of model-driven development in multiple incremental iterations instead of concentrating on a single tool. At the same time we unite these techniques by using a dynamic visualisation tool that shows to the students the whole infrastructure in the big picture. The course is implemented as an iterative incremental MDSD case study. The paper concludes with a survey performed with our students that indicates positive results of the approach.


2011 ◽  
Vol 7 (3) ◽  
pp. 44-62 ◽  
Author(s):  
Valérie Monfort ◽  
Slimane Hammoudi

Service-Oriented Architectures (SOA) are widely used by companies to gain flexibility. Web services are the fitted technical solution used to support SOA by providing interoperability and loose coupling. Basic Web services are being assembled to composite Web services in order to directly support business processes. However, there is much to be done to obtain a genuine flawless Web service, and current market implementations do not provide adaptable Web service behavior depending on the service contract. This paper proposes two different approaches to increase adaptability of Web services and SOA. The first approach is based on Aspect Oriented Programming (AOP) as a new design solution for Web services. The authors have implemented an infrastructure to enrich services with aspects and to dynamically reroute messages according to changes, without redeployment. The second approach combines Model Driven Development (MDD) and Context-Awareness to promote reuse and adaptability of Web services behavior depending on the service context. Parameterized transformation techniques are proposed to bind context with business logic implemented by a service. The aim is to merge the two approaches to abstract and reduce the technical complexity of aspect based service solution.


Author(s):  
Guadalupe Ortiz ◽  
Behzad Bordbar

The presented approach draws on two main software techniques: Model-Driven Architecture, and aspect-oriented programming. The method involves modeling of the Quality of Service and Extra-functional properties in a platform-independent fashion. Then applying model transformation, the platform-independent models are transformed into platform-specific models, and finally into code. The code for Quality of Service and Extra-functional properties are integrated into the system relying on aspect-oriented techniques in a decoupled manner. The presented approach is evaluated with the help of a case study to establish that the approach results in increasing the system’s modularity and thus reducing implementation and maintenance costs.


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