Cloud computing has been attracting much attention since its birth. How to cloudify software systems especially legacy applications in the cloud era is becoming increasingly important. Based on RGPS meta-model framework and International standards-ISO/IEC 19763, an architecture for cloudification of legacy applications is proposed, which consists of three parts: a Web portal, a SaaS service supermarket, and a SaaS application development platform. In this paper, we take an open source software as an example to illustrate the proposed approach. Based on the architecture and supporting techniques on software virtualization and multi-tenancy, we develop a prototype Cloud CRM to demonstrate the basic procedure for cloudification of legacy applications, as well as the feasibility of the proposed approach.
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机译：云计算以来自出生以来一直引起了很多关注。如何Clyclify软件系统尤其是云时代的遗留应用正变得越来越重要。基于RGPS元模型框架和国际标准 - ISO / IEC 19763，提出了一种遗留遗留应用程序的架构，其中包括三个部分：网络门户网站，SaaS服务超市和SaaS应用开发平台。在本文中，我们采用开源软件作为示例以说明所提出的方法。基于软件虚拟化和多租户的体系结构和支持技术，我们开发了原型云CRM，以展示传统应用混浊的基本程序，以及所提出的方法的可行性。
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