This is a classic example of a legacy application, and it provides the core functionality necessary to provision a service.
这是遗留应用程序的典型示例，提供了提供服务时所必需的核心功能。
Service VM - to provide an easy way to provision new infrastructure and application services for the cloud.
Service VM——通过一种简单的方式为云提供新的基础设施和应用服务。
The catalog service was then implemented by a service controller, and this controller accessed the legacy catalog application to provision the catalog data required by the catalog service.
随后由服务控制器实现Catalog服务，此控制器将访问遗留Catalog应用程序，以提供Catalog服务所需的Catalog数据。
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