您需要多少人來支持SAP項(xiàng)目？1

1、附件三：您需要多少人來支持SAP項(xiàng)目？眾所周知，實(shí)施施R/3費(fèi)用很很高，但是長長期支持費(fèi)用用有多少？請用下文中Gaartnerr的rulees of thumbb 來算一一下，如果采采用SAP系統(tǒng)你你需要多少人人來支持？與與您原來估算算的差距有多多大？同高昂的長期支支持費(fèi)用相比比，初期實(shí)施施費(fèi)用根本算算不了什么！原文： Managging EEnterpprise Appliicatioons: FFrom PPackagges Too Prodductivvity , GarrtnerGroup EEuropee Sympposiumm procceedinngs, CCanness, Fr

2、annce, NNovembber 2-5, 19998, Fred Maagee資料來源：To deveelop aa rouggh esttimatee for the ssize oof an ERP iimplemmentattion sstaff, usefive peerson monthhs perr conccurrennt useer andd normmalizee baseed on estimmatedprojectt lenggth.SAP Impplemenntatioon Staaff % By RooleRoles Avg % Rangee %ESP AAvg

3、%When UssedTraininng-Methodoology31-1220Techniccal Arrchiteecturee71-2747Gap Anaalysiss30-1428Module Confiigurattion6140-82224Interfaaces7 0-3542Custom Extennsionss5 0-2138Data Coonverssion60-1841Testingg/QA8 4-1922Total SStaff Size Coarrse RRule oof Thuumb : 5 Perrson-MMonthss per Concuurrentt User

4、rSource: Garttner MMeasurrementt Seleected Benchhmark DataNote : ESP = Entterpriise Seervicee Provviderss, eg Big SSixs and llarge SIsThere iis no corrrect size for aan ERPP impllementtationn teamm, theere arre simmplytoo manny varriablees invvolvedd. Howwever, haviing saaid thhat soome daata iss be

5、ttterthan noone. UUsing twelvve sellectedd Garttner MMeasurrementt SAP benchhmarkss, theevariabiility in sttaffinng quiickly becommes appparennt. Coore immplemeentatiion teeamsizes rrangedd fromm 24 tto 1611 withh impllementtationn elappsed ttimes rangiing frrom10 to 448 monnths. No obbviouss meanni

6、ngfuul corrrelattion wwas prresentt in tthe daata, ee.g. nnumberr of mmodulees, nuumber of innstancces, ddegreee of ccustommizatiionor numbber off inteerfacees. Hooweverr, loooking back at thhe impplemenntatioon usiingoperatiional concuurrentt userrs as a mettric, a corrrelattion wwas foound. Acoars

7、ee rulle of thumbb is 55 persson moonths per cconcurrrent user. Estiimatioonsof projject dduratiion annd conncurreent ussers wwould lead to ann overrall eestimaatefor staaff siize. AA rouggh appproximmationn for concuurrentt userrs wouuld bee 1:6named uusers.For thee 8 sttaff rroles measuured, the d

8、data iindicaates aa widee rangge of usagee,with coonfiguuratioon domminatiing shhare oof staaff. AApproxximateely haalf thhe cassesused ESSP forr certtain rroles and wwhen tthey ddid thhe aveeragess indiicateddsignifiicant portiions oof worrk beiing ouutsourrced. (.)Staffinng sizzes vaary wiidely by

9、 orrganizzationn, butt can be coorrelaated tto twoo keyparametters, concuurrentt userrs andd the indusstry sstandaard Unnix meetricSPECmarrk92 bbenchmmark.SAP Suppport Stafff EFT MetriicsApplicaation Avg RangeeProcesss Owneers191-57Super UUsers20-10Programmmers82-22IS Suppport40-15Infrasttructuure A

10、vgRangeeOperatiions61-18Tech Seervicees91-28Help Deesk10-8Networkk10-3Rules OOf Thuumb :- Appliicatioon Suppport EFT/1100 Cooncurrrent UUsers : Aveerage = 8, Rangee = 4 - 18- Infraastruccture Suppoort EFFT/10000 SPEECmarkk92 : Averaage = 3.5, Rangee = 2 - 6Applicaation suppoort coovers stafff thatt

11、deall withh userr issuues reegardiingapplicaationss, e.gg. minnor ennhanceementss, bugg fixees, reeport writiing anndquestioons reegardiing appplicaation functtionallity. Many compaanies draw from thesame poool off SAP-skillled reesourcces foor botth impplemenntatioon andd suppport.Infrasttructuure

12、sttaffinng inccludess techhnicall servvices persoonnel such as thhe Bassissupportt teamm, sysstems progrrammerrs, caapacitty plaannerss and perfoormancceexpertss. Alsso inccludedd are operaationss stafff succh as consoole opperatoors, jjobschedullers aand taape opperatoors. WWe seee no ggreat diffee

13、rencee in iinfrasstructturestaffinng bettween SAP iimplemmentattions and oother cliennt/serrver eenviroonmenttswhen wee lookk at ccommonn metrrics ssuch aas suppport headccount per uunit oofcapacitty.Two rulles off thummb emeerge ffrom tthe seelecteed bennchmarrk datta. Tootal EEFT foorapplicaation

14、suppoort iss corrrelateed to concuurrentt userrs, siimilarr to wwhat wwasdone eaarlierr for impleementaation. Infrrastruucturee suppport iis bettter ccorrellatedto servver caapacitty sinnce thhis meeasurees inffrastrructurre sizze. Thhe rellevanttSPECintt numbbers aare drrawn ffrom tthe Unnix inndus

15、trry staandardd SPECCmark992benchmaark.Variancce in infraastruccture costss amonng SAPP userrs is over 3 to 1. (FFor thhetwelve SAP iinstalllatioons, mmonthlly cossts peer 1,0000 diialog stepss : raange ffrom25 to 990 USDD).The harrdwaree costts herre incclude leasee, maiintenaance aand deepreciiati

16、onn for allserverss. Sofftwaree inclludes SAP, DBMS and rrelateed sofftwaree, witth purrchaseecosts ddeprecciatedd overr threee yeaars. SStaff costss are salarries aand beenefittsfor thee infrrastruucturee stafff. Moost SAAP shoops haave miirroreed theeir prroducttiondatabasse cappacityy 100 perceent annd thaat cosst is incluuded hhere. Leadiing-eddgeenterprrises managge harrdwaree withh a ceentrallized, straategicc asseet mannagemeentsystem, whicch maiintainns infform