策略4：服务是将批处理任务转换为面向服务架构的过程。
Strategy 4: service is the transition step from batch to a service-oriented architecture.
然而，在策略3 ：并行批处理中，批处理任务经过了划分。
With strategy 3 : parallel batch , however , a batch job is subdivided.
策略 3：并行批处理将批处理任务划分为子任务发送到各个网格节点上，然后再聚合各个部分的结果。
Strategy 3: Parallel Batch subdivides batch work into subjobs to be sent to grid nodes and afterwards aggregates the partial results.
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