Research Of The Dynamic Assembly Of SaaS Service Based On OSGi

With the rapid development of software technology, the traditional softwaremodel has been unable to fulfill the individual needs of users. The advent of SaaSmode has changed the traditional software mode, users used to apply on softwareproducts, but now they prefer to software service. Today users need to finish theywork by different approach, so that traditional SaaS cannot fulfilled their need anymore. Therefore, to provide users with dynamic services are becoming important.In order to fulfiller the users’ needs, we usually takes two solutions: the first iscustomized service for every users according to their needs, but this will undoubtedlyincrease the level of system redundancy and reduce system efficiency; the secondapproach is to developed a service which integrated all function of users’ needs, butthis will result in poor reusability of services and increasing the difficulty ofmaintenance.In order to solve the drawbacks of traditional SaaS model, this paper will studyon building SaaS service by dynamic ways. Firstly, it will analysis SaaS maturitymodel to find out which level of SaaS maturity model is fit to the logistics platform.Secondly, the research focus on the technical of SaaS service designs, with the resultof comparison, the OSGi framework module of dynamic programming and loosecoupling between properties are appropriate to dynamic assembly service. Thirdly,with the result of analysis to the dynamic principles of OSGi, this paper will proposean approach to solve the problem on the restore of Bundle and the load of relatedclass, and then verify the effectiveness through experiment. Finally, it will realize thedynamic assembly SaaS service method on a logistics platform, while comparing withthe traditional SaaS model, to prove this approach is effectiveness and operability.