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計一個簡略的方案,應(yīng)力圖回答以下三個問題:

問題能解決嗎?

在用戶的環(huán)境下問題能解決嗎?3.在一個合適的花費上問題能解決嗎?如果這些問題中的任何一個得到的是否定回答,那么該系統(tǒng)就不應(yīng)開發(fā)。有了好的問題定義和肯定的可行性研究,

如果需要的話，請求重新訂貨。訂貨單一經(jīng)核準(zhǔn)，GENERATE REORDER（產(chǎn)生再訂貨單

reorder，因此商品說明和訂貨數(shù)理必定存

reorder（報告和再訂貨）程序處理。經(jīng)營部門用該程序報告與再定貨程序；除了硬件和程序以外，我們還需要貨單文件以及I\O

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