Strategies for software source migration

经过验证的软件系统在商业和软件行业中具有既定价值；但是在快速发展的软件开发世界中，经过验证的系统必须不断适应不断变化的外部条件。加拿大软件产业的竞争力和健康发展有赖于此。当现有系统适应新的环境时，会出现新的编译器或编程语言，或者不同的支持软件和操作系统。管理这种适应的一种方法是通过“源迁移”，这涉及到对源代码的实质性更改，以便在新环境中适当地维护它。在本文提出的研究中，我们开发了从源恢复软件设计和自动化源转换策略，包括四个标题：多层软件体系结构、方言（编译器版本）迁移、面向对象框架迁移和使用动态和静态分析的快速迁移计划。

Proven software systems are established value in business and in the software industry; but in the fast-moving world of software development, proven systems must constantly adapt to changing external conditions.  The competitiveness and health of Canadian software industry depends on this. When an existing system is adapted to a new environment, a new compiler or programming language, or different support software and operating system appear around it.  One way to manage this adaptation is by "source migration", which involves substantial changes to the source code, in order to maintain it properly in the new environment. In the proposed research, we develop software design recovery from source, and automated source transformation strategies, under four headings: multi-layered software architecture, dialect (compiler version) migration, object-oriented framework migration, and rapid migration plans using dynamic and static analysis.