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    6/8/2009

    所謂蛋疼,大抵如此

    平常都比較感性
    今天來點理性思維
    順帶說說工作

     

    先設定幾個函數
    Q(A)=Quotation ( vendor A )
    P(Q)=Price ( Quotation (A)  )
    T= Techical Request

     

    通常採購品項都是採用詢价報價法
    即根據技術要求發出詢价,評估報價再選擇方案
    即儅滿足Q>T,P有效,然後就比較單純的比較P,取P小的
    這樣就會產生兩個問題

     

    根據達爾文的原理,P小的會存活,則不斷選擇的結果是Q會無限趨進于T+
    而通常T都是最低標準,則Q會趨向于最低標準
    實際的情況會複雜點
    但在無其它調控的情況下,Q應當會自發的趨向于T+

     

    現實一般是選擇P最低者,但一般理想是選擇性价比最優者,即Q/P
    這裡就產生了第二個問題
    P是完全量化,單位是貨幣單位
    Q是繁複的表現,通常都難以被整數所切割
    只有儅Q相同,或者P相同,才有比較的可能和意義
     
    純討論

    Comments (7)

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    min wuwrote:
    还好俺不在国企,有充分的自主权..当然,boss会给出policy..
    发现这其实也是个很郁闷的职业..
    June 21
    Joy ZHUwrote:
    猪头支持珏珏^@^
    June 19
    珏 陆wrote:
    其实我看不太懂。。。
    June 15
    Anna Annwrote:
    Q=quality
    June 9
    Anna Annwrote:
    同意的,不过一般都是要Q先过关,再PK P,Q不过关 除非P是负数
    June 9
    YeDong Chenwrote:
    说的有道理,不过,在国企,还要定义一个函数:C=Comments(领导的一句话)
    June 9
    玮容 赵wrote:
    不参与讨论 ^@^
    June 9

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