調(diào)研流程圖符號(hào)及其畫法

業(yè)務(wù)流程圖基本符號(hào)注：橢圓符號(hào)用“方框”替代同步符號(hào)判斷符號(hào)1/11業(yè)務(wù)流程圖實(shí)例顧客或者部門處理流程2/11業(yè)務(wù)流程圖實(shí)例3/11數(shù)據(jù)流圖基本符號(hào)處理過程數(shù)據(jù)流來源/目地文獻(xiàn)或者數(shù)據(jù)庫4/11數(shù)據(jù)流圖基本要素5/11Source–源Trigger–dataflowfromanexternalagenttoaprocess(輸入)Activity–處理過程Response–adataflowfromaprocesstoanexternalagent(輸出)Destination–目標(biāo)地Entity（數(shù)據(jù)實(shí)體）–數(shù)據(jù)文獻(xiàn)或者數(shù)據(jù)庫表實(shí)體6/11合理數(shù)據(jù)流必須通過“處理過程”ProcessProcessProcessDataStoreSource(externalagent)ProcessProcessDestination(externalagent)7/11數(shù)據(jù)流圖實(shí)例8/11“處理流程”描述9/11數(shù)據(jù)流數(shù)據(jù)屬性構(gòu)造定義DATASTRUCTUREORDER= ORDERNUMBER+ ORDERDATE+ [PERSONALCUSTOMERNUMBER, CORPORATEACCOUNTNUMBER]+ SHIPPINGADDRESS=ADDRESS+ (BILLINGADDRESS=ADDRESS)+ 1{PRODUCTNUMBER+ PRODUCTDESCRIPTION+ QUANTITYORDERED+ PRODUCTPRICE+ PRODUCTPRICESOURCE+ EXTENDEDPRICE}N+ SUMOFEXTENDEDPRICES+ PREPAIDAMOUNT+ (CREDITCARDNUMBER+EXPIRATIONDATE) (QUOTENUMBER)ADDRESS= (POSTOFFICEBOXNUMBER)+ STREETADDRESS+ CITY+ [STATE,MUNICIPALITY]+ (COUNTRY)+ POSTALCODEENGLISHINTERPRETATIONAninstanceofORDERconsistsof: ORDERNUMBERand ORDERDATEand EitherPERSONALCUSTOMERNUMBER orCORPORATEACCOUNTNUMBER andSHIPPINGADDRESS(whichisequivalent toADDRESS) andoptionally:BILLINGADDRESS(whichis equivalenttoADDRESS) andoneormoreinstancesof: PRODUCTNUMBERand PRODUCTDESCRIPTIONand QUANTITYORDEREDand PRODUCTPRICEand PRODUCTPRICESOURCEand EXTENDEDPRICE andSUMOFEXTENDEDPRICESand PREPAIDAMOUNTand optionally:bothCREDITCARDNUMBERand EXPIRATIONDATEAninstanceofADDRESSconsistsof: optionally:POSTOFFICEBOXNUMBERand STREETADDRESSand CITYand EitherSTATEorMUNICIPALITY andoptionally:COUNTRY andPOSTALCODE10/11數(shù)據(jù)流