Describes the third and fourth of six strategies for grid application enablement outlining how the work of a batch program is subdivided and how a program becomes a service subroutine callable by a client through grid middleware . part 4 of this series describes new paradigms that can be exploited when an application uses services in parallel 描述了启用网格应用的六种策略中的第三和第四种,概述了如何将批处理程序的任务进行划分,以及程序如何成为可供客户机通过网格中间件来调用的服务子例程。