Applying Feature-Oriented SoftwareDevelopment in SaaS Systems: RealExperience, Measurements,and Findings

Abstract

Distributing software as a service (SaaS) has become a major trend for web-based systems. However, this software distribution model poses many challenges. One of them is feature variability, that is, some features of the system may be required by some users, but not by all of them. In addition, variability is more complex than just including or excluding a feature, since different types of relationships may exist between features. The implementation of this variability, and the parametrization and configuration of the system can be complex in this context, so the development process of a SaaS system must adequately address variability management. In this paper we present an experience applying feature oriented software development (FOSD) in the context of SaaS web-based systems development. We present a real experience in the development of a web-based system for managing home care services for dependent people. The article describes the problem of variability management in this domain, and the feature model of the system. Finally, we present an empirical evaluation of the feature model of the system based on data obtained from its real deployment after two years of use. The empirical evaluation was based on state-of-the-art measures for variability management, and revealed relevant insights for software development in this context. Keywords: feature oriented software development, feature oriented domain analysis, variability management, software as a service, feature model metrics.

Design and Implementation of SaaS Online Education Management System for Expanding LMS System

“…Among them, the front-end includes how to use the latest single page architecture front-end framework to cooperate with traditional Java back-end technology, build reusable front-end components through the directive feature in angular.js, build unit testing and end-to-end testing for the front-end, and automate the front-end through construction tools. The backend section mainly includes how to achieve communication and routing between the client and backend, how to build the company's own modular framework based on the characteristics of JVM and Tomcat, and how to achieve isolation and mutual communication between modules, the company's backend storage framework, and the implementation of cache mechanism [4][5][6]. In addition, by analysing the key technologies of LMS system application in SaaS online education management system, we can refer to the implementation process of the system and build a SaaS based LMS system that has a good user experience, is stable, and is easy for the team to develop quickly [7].…”