The first part of the process of defining an IMS/VS system. Stage Ⅰ checks input specifications and generates a series of OS/VS job steps that are the input to stage Ⅱ.; 定義信息管理系統(tǒng)IMS/VS進(jìn)程中的第一部分,即第一階段檢查輸入規(guī)格和產(chǎn)生一系列為第二 階段輸入用的OS/VS(IBM操作系統(tǒng))作業(yè)步。