CASE：TheCampusWedding

1、1CASE：The Campus WeddingOn March31 of last year, Mary Jackson burst into the family living room and announced that she and Larry Adams( her college boy friends ) were going to be married. After recovering from the shock, her mother hugged her and asked,”when?”The following conversation resulted:Mary

2、:April22Mother:Father:Mary:what!The Adams-Jackson wedding will be the social hit of the year. Why so soon? Because on April 22 the cherryblossoms on campus are always in full bloom! The wedding pictures will be beautiful.Mother:But honey, we canptossibly finish all the things the need to be done by

3、then.Remember all the details that were involved in your sisters wedding? Even if westart tomorrow, it takes a day to reserve the church and reception hall, and they need at least 17 daysnotice. That has to be done before we can start decorating the church, which takes three days. An extra$100 contr

4、ibution on Sunday would probably 17-days notice to 10 days, though.Father:Mary:Ugh!I want Jane Summers to be my maid of honor.Father:But she is in Peace Corps, in Guatemala, isnt she? It would took her 10 days to getready and drive up here.Mary:But we coule fly her up in two days, and it would cost

5、only $500. She would have to be here in time to haveher dress fitted.Father:Mother:Ugh!And catering! It takes two days to choose the cake and table decorations. And JackCatering wants at least 10 daysnotice prior to the rehearsal dinner (the night before the wedding).Mary:Can I wear your wedding dre

6、ss, Mom?Mother:Well, wed have to replace some lace, but you could wear it, yes. We could order thelace from New York when we order the material for the bridesmaidsdress. It takeseight days to order and receive the material. The pattern needs to be chosen first, and that would take threedays.Father:M

7、ary:We could get the material here in five days if we paid an extra $25 to airfreight it. I want Mrs. Watson to workon the dresses.Father:Mother:But she charges $120 a day!If we did all the sewing. We could finish the dresses in 11 days. If Mrs. Watson helped, we could cut thatdown to six days. At a

8、 cost of 120$ each day less than 11 days.Mary:I dont want anyone but her.Mother:It would take another two days to do the final fitting. It normally takes two days to clean and press thedresses, but that new cleaner downtown could do them in one day if we pay $30 charge for express service.Father:Eve

9、rything should be completed by rehearsal night, and thatonsly 21 days from now. I bet that will be abusy day.Mother:We have forgotten something. The invitations.2Father:We should order the invitations from Bobs Printing Shop and that usually takes12 days. Ill bet hewould do it in five days if we sli

10、pped him a extra3$5.Mother:It would take us three days to choose the invitation style before we could order them, and we want theenvelopes printed with our return address.Mary:Oh! That will be elegant.Mother:The invitations should go out at least 10 days before the wedding. If we let them go any lat

11、er, some ofthe relative would get theirs too late to come, and that would make them mad. Ill bet that if we didnt get them out until eight days before the wedding, Aunt Ethel couldn make it, and she wouldreduce he r wedding gift by$200.Father:Mother:Ugh!Well have to take them to the post office to m

12、ail them, and that takes a day. Addressing would takefour days unless we hired some part- time help, and we cantstart until the printer is finished. If we hired someone, we could probably save two days by spending$25 for each day saved.Mary:We need to get gifts to give to the bridesmaids at the rehe

13、arsal dinner. I can spend a day to do that.Mother:Before we can even start to write out those invitations. We need a guest list. Heavens, that will takefour days to get in order, and only I can understand our address file.Mary:Oh, Mother, I am so excited. We can start each of the relatives on a diff

14、erent job.Mother:Honey, I dont see how we can do it. Whwye,ve got to choose the invitations andpatter ns and reserve the church andFather:Why donyt ou just take $1500 and elope. Yours sisters wedding cost me $1200,and she didnhtave to fly people up from Guatemala, hire extra people, use air freight,

15、 or anything likethat.Questions:1.Give the activites and precedence relationships described in the case, develop a network diagram for the weddingplans.2.Identify the paths. Which are critical?3.What is the minimum-cost plan that meets the April22 date?這是一門很變態(tài)的課，但是平心而論，如果最近沒有這么多論文要寫的話其實(shí)還是挺 好玩的。 就比如這

16、次的campus wedding校園婚禮的策劃。 做的還是挺好玩的。 事情大體 是這樣，兩個(gè)大學(xué)里的戀人要在4月22結(jié)婚，因?yàn)槟翘焓菣鸦ㄊ㈤_的日子，很美。但父母 得知的時(shí)候已經(jīng)是3月31了。也就是說， 包括婚禮只有21天的時(shí)間準(zhǔn)備。 但我們可以壓縮 時(shí)間， 當(dāng)然相應(yīng)的我們要多花些錢， 那就要求我們策劃一個(gè)最節(jié)省的方案。 我們剛好的網(wǎng)上 找到了個(gè)一樣的案例。給了這次很大的幫助。貼幾張我們做的圖來給大家看看。3o；Sew dressesp：Fit dressesq：Clean and press dressei r；Getbridesmaids gifts s: Rehe ar sal dinne

17、rf; Order and receive invitations T：Wedding g- Address invitationsh：Take invitations to post officei：Invitation lead timej：Choose cakek；Jacks catering lead timE I：Janes travel from (5uatemata m：Choose dress patternn：Order and receive lace這就是每個(gè)字母的意思了。我們很厲害吧哈哈哈哈哈1Q15108這是網(wǎng)絡(luò)路徑圖。每個(gè)字母都是一個(gè)活動(dòng)，圓圈里的是沒有意義的時(shí)間節(jié)

18、點(diǎn)，箭頭下的數(shù)字就是時(shí)間了。a：Re5eMEchurch b :Church notice wait c：De corate church d：Prepare guest list e:Choose invitations4ActivityTiiwsDirect CcslAdditional Cost PerDy SvedRegularCrashRegularCrasha11r 亍-!L?10$100c33：d4qe33fL251354_ 2$50J2511108$20022L0二詢;替150033n.g50116$7201120P2221_J3C十Ti :1si1Ii1這個(gè)就是壓縮活動(dòng)所需要花費(fèi)的一個(gè)表格。從這上面可以很清楚的看出什么活動(dòng)，能 壓縮幾天，需要多少錢。PropelPlanProject 匚TinwAddiuoriCostLaaActwEVCrestedAddinofiai CostSawdCritical Psrtn131 days224 da 聲f by 7 n by 3day?J 35 $26m-n-cp-q-t322Ja/s5260q by itiey o 岡 1daJ50 $30S720M-g