Một số cải biên trên mô hình Dexter

1atrencdsddod€ de xua'tmQts6di tie'nlIenmohlnhDexter. I- Mdday Dexterla mQtmohlnhma,chopheptichh<;lpnhieuki€u componentvaoh~th6ng HMDB. Trong mo hlnh nay,tgnghill trfi'dongvai tro chinhyeu : hill trfi'cac componentva m6i lien h~giii'acacthanhphgnvdi nhaunhugiii'acomponentva anchor,giii'aanchorvalink.Ca'utruc,cachthlictrlnhdi€n, vi~ctudnglac vdingu'ai dung,...cuacomponentla nhii'ngthanhphgnngoaidu<;lctichh<;lpvaotgngbelltrong cuah~th6ng.MQtlingd~ngHMDB dU<;lcxayd11ngtrennentfmgla tgnglu'utrfi'va tgngbelltrong. Tuy v~y,nhudatrlnhbaytrongchuang2.1,v~ncanmQtso'va'ndedn chuy trong mohlnhDexternhu'linkcodc1yducacthanhphc1nhu'mQtcomponentkhong?Vi~c truyenthongso'vanh~nketquaa caclinktinhloan?Vi~cdinhnghlacaccomposite componentvacacanchortrongcompositecomponent?... Mo hlnhAmsterdamneuva'ndevem6ilienh~thaigiangiii'acaccomponentvava'n dengii'canhchoanchorvalink,nghlalakhidi theomQtlinkthltrlnhdi€n hi~nthai codungl?i haykhong,cobienma'tkhonghaychithayd6imQtphc1n? Mo hlnhVilas-SatidSingkorapoomduara khai ni~mlink earnngii'canhd€ dieu khi€n s11dangbQgiii'acacthanhphc1ntrongmQtcompositecomponent.Tuy nhien mohlnhnaykhongdec~pdenkhaini~manchor. Mo hlnhAmsterdamva mohlnhVilas-SatidSingkorapoomduara mQtkhuonm~u trongvi~cdangbQcactrlnhdi€n multimedia.Nhu'ngchinhvi~cdu'arakhuonm~u nhuv~y,cacmohlnhnayda "clinghoa"vi~cph6ih<;lpcacmediad€ t?OnenmQt trlnhdi€n. Phc1nsailsexemxetl?i cackhaini~mcdbantrongmohlnhDexter.Tu dodu'flkhai ni~mlinkearnngii'canhcungvdimQtso'eailienkhacd€ giaiquyetcacva'ndetrong mohlnhDexter. II- Anchor 11.1-Binh nghiaanchor MQttrongnhii'ngdonggapchinhcuaDexterla vi~cxacdinhro cacanchor,lam thanhmQtdu n6i tukientrucm?ngtdi cacnQidungcomponentc~th€. Khongco anchor,caclinkchin6itdiloanbQcomponent.Tuyv~ymohlnhnayv~nchu'adu'ara mQtdinhnghladc1yduvat6ngquatveanchor.Mo hlnhAmsterdamdatrlnhbaymQt dinhnghlave anchorcuacompositecomponent,xemanchorcua mQtcomposite componentla t~pcacanchorcuacac atomiccomponentn~mavi tri nut la trongcay phanca'pcuacompositecomponentdo.(Chu'dng2.II.5-Ngii'eanhcualink). 29 Dinhnghlaanchorphaixua"tphMtITchinhbancha'tcuano : "anchorla mQtbQph?n cuanQidungdii'li~ucomponentva co theduqcchQnbdi nguoidung".Composite componentduqcca'uthanhtu caccomponentconchaucuano,nhuV?ycomposite anchorsela t?PcacbQph?ncuacaccomponentconchaucuacompositecomponent do.Ne'ugiathie'tlacacbQph?nnaydaduqcdinhnghlatrudc- nghlaladat6nt~icac anchorbieudi~nchung,thl compositeanchorse chinhla t~pcacanchornay.Noi cachkhac,compositeanchortrongtrUonghqpnaysela t?Pcacanchorconchau.Day clingchinhladinhnghlavecompositeanchortrongmohlnhAmsterdam. Lttuy la trongdinhnghlanay,cacanchorhoanloancothegiaonhauvadieunayla phuhqptrongcaclingd~ngthvcte'.Vi d~trongmQtcomponentband6motaday nui traidaiquamQtqu6cgia.R6 rang,anchorxacdinhdaynuise giaovdi anchor xacdinhqu6cgia.Ho~ctrongmQtcomponenttextg6mnhieuchudngm~c,an~horla mQtdo~nvansebi philbdianchorlachudngm~cchliado~nvando. 11.2-NQidunganchor NQidunganchorla cacthongtindexacdinhmQtbQph?nnQidungcomponent.NQi dunganchorcotheduqcxacdinhb~ngcachmotahaytinhloan(xem[2]).Tacothe chiara2 lo~ianchor- dQcl?pvdikieucuacomponent: . Anchordanhda'u: la mQtd6i tuqngduqcxacdinhtrVctie'ptutrongnQidung component.Vi tri cualo~ianchornaytrongnQidungcomponentdaduqcxacdinh ch~cch~n,khongph~thuQcvaolink truyxua"tde'nanchornayva clingkhongph~ thuQchQnIvacuanguoidung.. Vi d~: trongmQtbfllld6,anchorxacdinhbiengidimQtqu6cgiaduqcxacdinhr6 rangvac6dinh.Vi tricuaanchorkhongph~thuQcvaocaclinktroyxua'tde'nanchor nayvaclingkhongph~thuQcvaongu'oidung. Ho~cmQtvungvanbantrongdo~nvanduqcdanhda'uthamchie'u.Anchorxac dinhvungvanbannaydu'qcxacdinhb~ngoffsettud§udo~nvande'nvungvanban do.DaylamQts6du'qcxacdinhr6rangtuvi trivungvanbantrongdo~nvan. . Anchor khongdanhda'u: la khi vi tri anchortrencomponentduqcxacdinh thongquamQts6tinhloan. Vi d~,vdi kieudii'li~ud~ngtext,keywordla mQtlo~ianchorkhongdanhda'u. TrongWong hqpnay,anchorla mQtchu6iky tV.Vi~cl§n theolink de'nd§un6i chinhla vi~ctlm cac xua"thi~ncua chu6ikeywordtrongvan ban dii' li~ucua component.Ho~ctrenmQtbangtrongcdsddii'li~uquanh~,anchorcothedu'qcxac dinhb~ngmQtpheploanchQn(selection). Do vi tri anchorkhongdanhda'ukhongduqcxacdinhtrUdc,nennQidungcuano la tr6ng.Vi tri anchorkhongdanhda'uph~thuQcvaosttchQnlttacuangu'oidungho~c ph~thuQcvaoke'tquacualink tinhloankhi troyxua'tde'nanchornay.Ngu'oidung 30 xacdinhvi tri cuaanchorkhongdanhda'ub~ngcacphuongti~nnhumenu,button, dialogbox... 11.3-Th6ng tin trmh di~ncua anchor Componentdungcacthongtintrlnhdi€n cuanod€ xacdinhcachhi€n thicacanchor, cachhi€n thicacanchorgiaonhau.Ngoaira,m6ianchorconco th€ cocacthongtin trlnhdi€n rieng.Khi do,componentsedungcacthongtintrlnhdi€n riengcu.aanchor thaythe'chothongtintrlnhdi€n anchorcuacomponent. TheoDexter,d~un6icochuathongtintrlnhdi€n choanchortuongungvdid~un6i do.DieunaykhonghQp19.Vi nhuv~ythl tronghic so~nthaolink,nguoidungse phaiso~nthaocacacthongtintrlnhdi€n anchortrongcacd~un6ivadieunaylam bQso~nthaolinkthemphuct~p.HonmIa,VIanchormotamQtbQph~ng~nlienvdi component;nenthongtin trlnhdi€n anchornenduQcxacdinhtITchinhanchordo ho~ctil'cacthongtintrlnhdi€n component. Cacanchorclingco thongtinngii'nghlariengd€ guyracacthongtintrlnhdi€n m~c dinhchochung.Vi~cchQnthongtintrlnhdi€n choanchorduQcxacdinhtheonguyen t~ccacthongtin camngii'canhduQcuu tienhoncacthongtin trlnhdi€n phi ngii' canh.Hlnhsauchotha'ycacthongtintrlnhdi€n anchorvathO'tt1chQnlt1achung. CackhaibaocuamQtlopcomponent SinhnghlacaclOpanchor ThOngtintrinh di~nm{tcdinh cho component ThOngtintrinhdi~n m{tcdinhchotung lOpanchor 3 Component Anchor 1 Cacthongtintrinh di~nrH~ngcua component 2 Cacthongtintrinh di~nchoanchor ThOngtintrinhdi~n riengcuamQtanchor Hinh 11-Thu tll u'uti~ncuacaeth6ngtin tr'lnhdi~n Tranghlnhtren,thongtintrlnhdi€n cos6thU'tt1nhohancodQUuliencaohan. TrangmQtanchor,nQidunglacacthongtind€ xacdinhmQtbQph~ncuacomponent; conthongtintrlnhdi€n la thongtind€ componenttrlnhdi€n bQph~ndo.Neutrong anchorkhongxacdinhthongtintrlnhdi€n, thlthongtintrlnhdi€n anchordu'Qcdinh nghlatrangph~mvi componentsedu'QcsU'dvng.Neu trangcomponentkh6ngxac dinhthongtin trlnhdi€n anchor,thl thongtin trlnhdi€n m?cdinhchoanchortrong dinhnghlalopcomponentnaysedu'QcsU'dvng. 11.4-Anchor cling la component Quaphantichdtren,tatha'ym6ilopcomponentd€u codinhnghlamQts6lopanchor dungtrangph~mvi lOpcomponentdo.M6i anchorphilithuQcvaomQtlOpnaodova cothongtinngfi'nghlarieng.AnchorclingconQidungdfi'li~uriengvathongtintrlnh di€n rieng- dungd€ xacdinhvatrlnhdi€n mQtbQph~ncuacomponent.Themnfi'a, trangcompositecomponent,anchordu'QcxacdinhtITcacanchortrongcacatomic component.Nghlala tacoth€ apdvngkhaini~mcompositechoanchor,theonghla la anchortrangcompositecomponentla t~phQpcaeanchortITcacatomic omponent cuacompositecomponentdo. 32 Toml<;1ianchorcungla mQtcomponent,du'QcdinhnghiatumQtlop,cothStruyxua't tucaccomponentkhac.DodoanchornencomQtid riengvaid nayla toancvctrong h~th6ng. BieunaykhacVOlDexter.Trongmoh'inhDexter,anchordu'Qcxacdinhb~ngC?p(id component,id anchor)va id anchordu'Qcdinh nghiatu'ongd6i trongph<;1mvi componentchliaanchordo.Bieu nayd~ndencacanchord nhfi'ngcomponentkhac nhau,cothScocungid. Voi cacanchorla toanbQcomponent,neuthongtin tr'inhdi~nho?cthongtin ngfi' nghlacuachungkhacnhauth'ichungsedu'Qcxacdinhla caccomponentkhacnhau. AnchorchidentoanbQcomponentco thSla anchordanhda'uho?cla anchorkhong danhda'u.Neula anchordanhda'uchidentoanbQcomponent,h'ianchornayconQi dungla tr6ng.Neula anchorkhongdanhda'u,th'inQidungcuaanchornaycochiden toanbQcomponenthaykhong,la tuythuQcvaonQidungdu'Qcxacdinhbdi ngu'oi dungho?cdolinktruyxua'tdenanchornay. 11.5-Anchor va giaodi~nngtiOidung . VOlcacanchorngu6n(anchorcoit nha'tmQtlinkhu'ongrakhoicomponent): neu la10<;1idanhda'uth'icacanchornayluondu'QchiSnthicungVOlcomponent;neula 10<;1ikhongdanhda'uth'ingu'oidungse chQncacanchor10<;1inaythongquacac dialogbox,button,menu,... . Voi cacanchordich(anchorchico caclink hu'ongvao): chidu'QchiSnthi neu anchornayviladu'Qctruyxua'tden.Ngoaira,ngu'oidungcondu'Qclingca'ptuy chQnhiSnthiho?ckhonghiSnthita'tcacacanchordich,caccomponenttruyxua't denanchornay,... Cacanchordichco thSla 10<;1ianchorkhongdanhda'u.Vi dVtrongmQtcdsddfi'li~u quanh~,khi ngu'oidungsli'dvngpheptoanchQndSxacdinhmQtvungCIamQtt?P cacdong)trongbangthlinha't.SaildotheomQtlinkla pheptoanketn6i (join)dSdi chuySnsangbangthlibal.Ket quatinhtoancualinknayla caccQtdungtrongphep chQn.Ket quanaydu'QchuySnchoanchordich.Vi~cxacdinhvi tri cuaanchornay du'Qctienhanhb~ngcachdungpheptoanchieu.R6 rangtrongtru'onghQpanchor dichla10<;1ikhongdanhda'u,vi tricuaanchorchidu'Qcxacdinhvaoluctruyxua'theo link. .. III. Compositecomponent Mo hlnhAmsterdamthvccha'tlamohlnhDextercothemmQts6b6sungdvatren cacyellc~ucuah~th6nghypermedial cachdinhthaigianchocaccomponentla mediava m6i quanh~tr'inhdi~ngifi'acac componenttrongmQtcomposite component. .. 33 Tuy v~y,va'nded~tra la li~ucacb6sungnaycobaaquatmQitrinhdi€n co th€ co haykhong?Vi d\,l,trinhdi€n yell cguchi th11chi~nmQtphgncuamediava l~pl<;1i lient\,lcchode'nkhicuQnquahe'tmQtcomponentvanbankhac. TrongmohlnhAmsterdam,compositecomponentkhongchU'anQidungdfi'li~utrlnh di~nmachihill trfi'cacm6ilienh~thaigiangifi'acaccomponentconvam6ilienh~ thaigiangiii'acomponentcha-componentcon.Nhu'ngnhu'v~y,mohlnhnaydiicU'ng hoavi~ct<;10mQtrinhdi€n ti1'caccomponent. Ti1'quandi€m h~th6ngmdtrongmohlnhDexter,ta se tachcd che't6nghQpcac componentt<;10ratrinhdi~nthanhmQtlopdu'Qcd~td tftngbell trong.Tu'dngt\fnhu' component,vi~cdinhnghlamQtlopcompositecomponentse donhii'ngngu'aiphat tri€n richhQpvaoh~th6ng. B~ngcachdu'acdche't6nghQpcaccomponentthanhtrinhdi~nvaolop dinhnghla compositecomponent,vi~cdieu khi€n s11trinh di€n cac componentcon trong compositetrdnendad<;1ng,linhho<;1thdn;khongchiconla mQt"mftu"duynha'tdo h~th6ngapd~tnhu'trongmohlnhAmsterdam.Nhu'v~y,khikichho<;1tmQtlinktrong compositecomponent,caccomponentconnaotie'pt\,lctrlnhdi~n,ngu'ngl<;1i,haybie'n ma'tlados11dieukhi€n cuacompositecomponent. Voi ca'utrucnay,compositecomponentsekhongcodii'li~u(trinhdi€n), machico thongtin ngii'nghla,thongtin trinhdi€n (chocaccomponentcon),danhsachcac componentthanhphgnvadanhsachcacanchor.Ti1'thongtinngfi'nghla,h~th6ngxac dinhdu'Qclopdinhnghlacompositecomponentnayvasedungthongtin trinhdi€n dinhnghlatrongcomposited€ th\fchi~nvi~ctrinhdi~ncaccomponentcon,trong compositedo.Cacanchortrongcompositecomponentdu'Qcdinhnghlala t~panchor ti1'cacatomic omponenttrongcompositecomponentdo. Vi d\,lt<;1omQtcompositecomponentlamQtdanhsachcacth\fcv~ts6ngdu'Qctrongsa m<;1c.Compositecomponentseg6mt~pcaccomponentth11Cv~ts6ngtrongsam<;1c. Lopdinhnghlacompositesexacdinhvi~ctrinhdi€n cactenth11cv~thanhmQtdanh sach,voicacthanhphgntrongdanhsachdu'Qcla'yti1'tencuacaccomponentcon. Compositecomponentlu'ucacthongtintrlnhdi~nla mallchfi',mallnell,kichthu'oc vavi tri cd'as6,ki€u vacochfi',...nhu'ngnQi dungcua compositela rang, nghlala khonglu'utencuaba'tkycomponentconnaGtru'oc. Khi du'Qcyell du trinhdi€n, compositecomponentse n<;1ptencuacaccomponent thanhphgnvaocomponentlistbox.Vi~cbi€u di€n cacth\fCv~ts6ngtrongsam<;1cse docomponentlistboxth\fchit$n. 34 Compositecomponent List box Danhsachcac componentcon Tencomponent1 Tencomponent2 cKutruccomposite Trinh dieDcomposite mnh 12-ctu trucvas1/.trlnhdi~ncompositecomponent Vi~cdu'adinhnghIacompositecomponentvaothanhphgnbell trongdalamchoh~ thdngcokhanangchopheptichhQpmQitrlnhdi€n coth€ comakhonglamphuct?P themmohlnh.Khi do,cachthuct6nghQpcactrlnhdi€n thanhmQtrlnhdi€n Ionhdn trongmohinhAmsterdamsetrdthanhmQtlopdu'QcdinhnghIatungoaivadu'QCtich h9Pvaotc1ngbelltrongcuamohinhmaio Ngoaifa,khaini~mkenhtrlnhdi€n sekhongconcc1nthiel,VI : . M6i component,k€ eacompositecomponent,delidu'QcdinhnghIathanhmQtlop. Trong dinh nghIalop da xac dinh thongtin trinh di€n mi;lcdinh cho cac component- la mQthinhthuckhaccuakhaini~mnhomcackenhtrlnhdi€n thanh mQtlayoutnhu'trongmohinhAmsterdam. . Vi~cki€m tra sv quatai tai nguyencling do lop dinh nghIacompositechili trach nhi~m.M6i loptvxacdinhcc1nhii'nglo?icomponentconnaotrongtrlnhdi€n, tu dococachki€m traquataitainguyenthichhQp. IV- Anchor trongcompositecomponent NeulopdinhnghIacompositecomponentkhongxacdinhro,thltrongtru'ongh9Pcac anchortrongcompositecogiaokhacr6ngvoinhau,taxemxetcactru'ongh9Psail: . Khi caccomponentcoquailh~t6 lien voi nhau,tatheonguyendc u'ulien cho cacthongtinearnngii'eanhhdncacthongtinphingii'eanh.Tuy V?y,composite componentv~ncoth€ di;ltl?i thutvu'uliennay. Tronghinhsail,cacanchorcuacomponent3 vacomponent4 cophgngiaolacac anchortrongcomponent5. Vi component4 va component5 dangdu'Qckich ho?t trongph?mvi component3,nenngii'eanhtrongtru'onghQpnayla component3.Khi ngu'oidungchQnvaophgngiaola mQtanchortrongcomponent5, thl anchorcua component3du'Qcu'ulienhdn. 35 ~......... ,i u uu {- / 8 \ 3] . i,/! \ 'l/ ~ sX/i 0 atomiccomponent- 8 compositecomponent ----- Hinh 13-811giaonhaucuacacanchortrongnhungcomponent coquailh~t6 tieDvOinhau . Khi caccomponentkh6ngcoquanht%t6tienvdinhau,compositecomponentphih xacdinhcacanchorcogiaovdivungdu'QchQnvahoingu'oidungchQnanchor naotrangs6do.Tranghlnhsau,cacanchorcuacomponent2 vacomponent4 co phcingiaola mQtanchortrongatomiccomponent5,Ngu'oidungphilixacdinhla hQchQnanchorthuQcomponent2 haycomponent4. 'A-" -',,: :, 0, 0 \) : 83 / :"-/--/\ 0 " "' / 4: 8 , " 0 ~ ... : :/ ", .:" ',' " " :: 0: ,: 0 0 5 0,': .. ,,',' : ', ',-' 0-------- Hinh 14-811giaonhaucuacacanchortrongnhung componentkh(')ngcoquailh~t6 tieDvOinhau 36 V-Link V.I- Link vaanchorkh6ngdanhd«u TheomohlnhDexter,linkbaog6mmQtdaycuahaihaynhi€u d§un6ivalinkduQc kichho(;ltsethl;l'chit?nquatrlnhchQnra mQthoiflcnhi€u anchordichtucacd§un6i TO cualinknay. v.l.l- Ljnk tinhtoaDxaca/nhn(Jjdunganchoraich Theosl;l'phanrichtrongchuang2.1.7-Anchor,vi tri anchorkhongdaubda'uchiduQc xacdinhthongquamQts6tinhroan.VI V?y,khidi dQctheomQtlinkd€ troyxua'tde'n cacanchorkhongdaubda'u,linknayphaixacdinhnQidungcuaanchordichtucac thongso'cuaanchorngu6n.Dodolinkconla mQtie'ntrlnhxacdinhnQidunganchor dich. V.1.2-Ljnk tfnhtoaDxac a/nhjd cuaanchoraich Khi Dextercha'pnh?nlinktinhroanvaanchorkhongdaubda'u,dad~nde'nht?quala conhii'nglinkconhii'ngd§un6iTO khongcoid anchor.Khi componentkichho(;ltlink vatruy€nthongso',linkco th€ dl;l'atrenthongso'naymachQnfa id componentdich vakichhO(;ltcomponentdo. id anchordich=idanchor Hlnh 15-Ddunolkhongxacdinhtructcid V.2- C«u truc cualink component VI linklamQtie'ntrlnhxU'ly nenlinksekhongcothongtintrlnhdi~n.Clingtuang W'nhucaccomponentkhac,cacloplinknaylamQthanhph§nngoaiht?th6ng,thuQc 37 Linkcomponent Textcomponent Anchorkhongdanhdffu Khongcoid Thongtintrlnhdin HuangFROM Khongcoid I HuangTO vaot~nghentrong,nenchungcotheduqcb6sung,suad6iba'tky lucnaomakhong anhhuangde'nh~th6ng. Khaini~mcompositevaanchorclingkhongapdl,lllgchocaclinkcomponent.Nhudi'i trlnhbay trongchuang3.11.3-Thongtin trlnhdi~nanchor,d~un6i se khongchli'a thongtin trlnhdi~nanchor.D~un6i se chi baog6mid cuaanchorcomponentva huang. Vi~cd~un6ichichli'aid cuaanchorcomponentcondfinde'nmQti~nlqi khac.Trong mohlnhDexter,khikichho~tmQtcomponentb~ngdongl~nh,nguoidungphaicho bie'tencomponent(h~th6ngseHmduqcid tuangli'ngcuacomponent);conkhikich ho~tcomponentdQctheolink,h~th6ngphaibie'tid componentva id anchor(trong componentdo).Khi xemanchorla component,hl trongca hai tru'onghqp- b~ng dongl~nhhaydQctheomQtlink- h~th6ngchidn bie'ten(ho~cid)component.Khi anchorcomponentduqckichho~thlh~th6ngseHmduqcvakichho~tcomponent tuangli'ngchli'aanchordo. ffmh 16-Vi d1)v~linkcomponent Link duQct~ob~ngbQso~nthaolink.NguoidungchQncacanchorngu6n,anchor dich.H~th6ngsehienthicacloplink thichhQp.NguoidungsechQnmQtlop link, d~tenvaxacdinhcacthongso'(t~othanhnQidung)cholinkvilat~o. 38 ComponentA ComponentB Anchora Anchorb ThOngtintrlnhdin ThOngtintrlnhdin Link component Id anchora HuangFROM Id anchorb HuangTO V.3- Cae link khongeh~t Ngu'Qcl(;livdimohinhDexter,Halasz[2]du'aracac19doh6trQlinkthongch?t: . Chopheptrlhoanvii$cciflpnhifltvathudci)llracsailcacthaotacxoacomponentva anchor.Di€u naylac6ichkhi linkdn du'Qcxoahaythayd6idangn~mtrenmQtmay khachaydangbikhoaboimQtngu'oidungkhac. . C6 ichtrangcactlnhhuo'ngmadfi'lii$ucuacomponentn~mngoaisvdi€u khien cuahi$tho'ng.Nghlala khi dfi'lii$ucuacomponentdu'Qclu'utrongcactiflptin rieng bii$tvacactiflptinnayc6thebi xoahaybi doichuyen. . Cacdguno'i(chiVaGanchorhaycomponentvuabi xoa)c6thedu'QCd?ttroVaG mQtcomponenthaymQtanchornaGkhacmathongdn phaica'utrucl(;litoanbQlink. . Caclinkthongch?tdu'Qco'tinht(;lOradedanhch6chocacnutho?cdiemneoa dguno'icualink,macacnutho?canchornayv~nconchu'adu'Qct(;lOfa. ClingtheoHalasz,Svhii$ndii$ncuacaclinkthongch?tnhu'viflydu'Qcgiamsatboihi$ tho'ng- ho?cb~ngli$nhho?cdu'Qcthvchii$ntvdQng.Ngu'oidungsedu'Qcnh~cno'il(;li cacdguno'ibi "tha'tl(;lc"cualink. C6 4 tlnhhuo'ngv€ link thongch?tnaysinhtrangmQthi$hypertextxaydvngtheo mohinhDexter: 1)Caccomponentadguno'icualinkdabixoa. 2)Anchormalinkthamchie'uWidabi xoa. 3) Cacdo'itu'Qngdfi'lii$udu'QcnQidungcuacomponentthamchie'uWi la thongsli' dl,lllgdu'Qc. 4)GiatrianchorthonghQpli$. Tranghaitru'onghQpdgutien,cacthaotacxoalamthayd6icacdo'itu'Qngdich;d~n tdivii$cnhfi'ng19ntruyxua'tsaild6bi lo(;litIll. Hai tru'onghQpsailthu'ongla ke'tquacuacacthaotaca ngoaisvdi€u khi€n cuahi$ tho'ng.Vi dv, cacdo'itu'Qngdfi'lii$ulamnQidungcuacuacomponentse tro nen thongdungdu'Qcne'unQidungcuacomponentla tentiflptinvatiflptinnaydabi di chuy€nhaybi xoa(tru'onghQp3). Trangtru'onghQp4,dfi'lii$udu'QcxacdinhboinQidunganchortronenthonghQpli$ khi cacphgnlienquancuacomponentdabi thayd6ib~ngcacbQso(;lnthaoa ngoai hi$tho'ng.N6i chungthltlnhhuo'ngnayla thongthephathii$ndu'QC,VIcacanchorc6 thev~nla hQpli$.Vi dVkhi componentla textvaanchorla mQtdo(;lnvan.Ne'unQi dungtext bi thayd6i boi mQtbQ so(;lnthaoa ngoaihi$tho'ng,thl anchorcua componentnayv~nc6thexacdinhdungd~nmQtdo(;lnvantrangtextd6- nhu'ngnQi dungtexttrangvungxacdinhboianchorlahoantoanthayd6i. Hannfi'a,cac19Ie cho'ngl(;liHalaszconla : 39 . Co nencha'pnh?nst{trlhoanvi~cC?pnh?tvadQnnk haykhong?Dieunaycon ph'QthuQcvaovi~cph<ittrienngonnguhotvacacrangbuQctrenHMDB. Cacthaotacxoa,dichuy€ncaccomponentduQchfutrongcact?Ptinriengcothe duQCnganch~nbAngcaccdche'cuah~di€u hanh.Vi~csli'ad6icomponentchI du<;1ctie'nhanhbAngcaclingd'Qngcoh6trQchoHMDB. Vi~cxoacaccomponentphiiituanthuch~tchetheothlitt{:xoalink,xoaanchor, vasailcunglaxoacomponent. . . V.4-Link dim ngiicanh Mo hlnhVilas- SatidSingkorapoomduarakhatni~mlienke'tearnngudmhnhung chideh6trQchomQtlo~itrlnhdi€n d~cbi~tla l~nluQthienthicacthongtinthliye'u ph'QthuQcvaod~ngdanhsachcuathongtinchuye'u.TrongmohlnhVilas - Satid khongcokhatni~manchor. Mo hlnhAmsterdamduarakhatni~mngueanhcualink, la nhungcomponentcon trongcompositebi anhhuangkhi linknayduQckichho~t. (j day,tasecattie'nmohlnhDexterbAngcachdungkhatni~mlinkearnngucanh. Link earnngueanhla link chi t6nt~itrongph~mvi mQtcompositecomponent. Nhunglinklo~inaylakhongtha'yduQctircaccomponentkhac. Khai ni~mlink earnngucanhcungVOlvi~cdinhnghlal~icompositecomponent (xemIII-Compositecomponent)nh~mh6trQchovi~ct6nghQpcaccomponentthanh mQttrlnhdi€n. Link camngucanhclingca'pst{lienh~giuacaccomponenttrong ph~mvi composite.Cdche't6nghQptrongdinhnghlalopcompositethlxacdinhcach thlictrlnhdi€n cacnQidungla'ytircaccomponentcon. Tadn lu'uy st{khacnhaugiuacackhatni~mngucanh. . "Ngucanh"trongmohlnhAmsterdamla t?Pcaccomponenttrongca'utrucdiy phanca'pvacaccomponentnayamliccaohdncomponentcolinkduQchQil . "Ngucanh"trongmohlnhVilas-Satidla thanhph~ncuacompositenodedang duQckichho~t. . "Ngueanh"duQcxetadaylat?Pcaccomponentconcuacompositenode Vi d'Qcompositecomponentg6mcomponentla mQtdo~nvideoduQcph'Qdeb~ng mQtcomponentla mQtdo~ntext.Giuahatcomponentnayco linkke'tn6ichungVOl nhau.Linkke'tn6igiuachungchitha'yduQctrongph~mvi cuacompositecomponent. Khi trlnhdi€n chungdQcl?pho~ctrlnhdi€n trongph~mvi mQtcompositecomponent khac,st{ke'tn6igiuacomponentvideovacomponenttexttrensekhongKayfa. 40 Video Van ban ......................................................... 1llliliilii:lillllilillllllliiiillllllillllllliillllllIIIIIIII Componentvideo " " "",." "................................................................................................... - Componenttext Hinh 17-CaccomponentdQcl~p Video Vanban Hinh 18-Caccomponentrongph~mvi composite 41 V .5-Chi~udai media TrangmahlnhAmsterdam,cachdinhthaigianchocaccomponentIii mediavii m6i quailh<$trlnhdi~ngifi'acaccomponentdu'Qcxacdinhb~ngcacclingd6ngbe)trang compositecomponent.Cacclingd6ngbe)dinhnghlam6ilienh<$thaigiand d<;1ngcac khoangthaigiantr~t6ithieuvii t6idagifi'acackhoangtrlnhdi~ncuacaccomponent media. Xemm6ilienh<$thaigiangifi'ahaicomponentmediasail: Thaigian . I!!!!!m!!!!!!!!!!!mm!!!!t::ii:@gmmmmmmmmmmmmmmCo ponent1 Anchor Component2 llinh 19-Lien h~thO'igiangiii'acaemedia Tronghlnhtren,sailkhi component1 trlnhdi~ndu'Qc30giaythl component2 b~t dc1utrlnhdi~n.Tuy V?y,va'nde nay sinh Iii khi ngu'aidungyeti cc1utrlnhdi~n component1d t6cde)nhanhga'pdaithldieucothexayra Iii component1dacha'm dlitr6i thlcomponent2 moitrlnhdi~n.Trangthvcte',vi<$cxacdinhcomponent2 b~t dc1utrlnhdi~nkhicomponent1trlnhdi~nde'nme)tdo<;1nniiodosehQpIy hdnIii vi<$c xacdinhcomponent2 b~tdc1utrlnhdi~nkhi component1 trlnhdi~ndu'Qcme)thai gianniiodo. Nhu'V?y,ta co thethaythe'khaini<$mthaigiantrlnhdi~nmediab~ngkhaini~m chieudiii media.ChieudiiimediaIii khaini~mdungdeIu'Qnghoasvtrlnhdi~ncua mediado.Vi d\!,voimediaIii videothlchieudiiimediadu'Qctinhb~ngso'frame;voi mediaIii amthanhthlchieudaimediasetinhb~ngthaigiantrlnhdi~ntheoddnvi giayd t6cde)thu'angcuat?Ptinamthanhdo. 42 Cae ddnvi dil'li<%utrongmedia . Component1 Component2 ffinh 20-Lien h~giiiacaemediatheochi~udid Voi khaini~mchieudaimedia,m6iquailh~trlnhdi€n giuacacmediasekhangphi). thuQcvaot6cdQtrlnhdi€n cuaph§nclingho~cvaovi~cchQnchedQthtfchi~ntrlnh di€n nhanhhaych~m. ThaychocacclingdangbQ,tadinhnghlathemmQtlOpanchord~cbi~tchocaclop media.Lop anchornayxacdinhmQtdol;lntrenchieudaimedia.Vi di).mediala video cochieudaila 50frame,thlco thecomQtanchorthaigianla khoang(20,30)ch~ng hl;ln.Nghlala trongkhoangtueanh20deneanh30cuatrlnhdi€n, nguaidungchQn anchortrencomponentvasekfchhol;ltcaclinknaodoxua'tphMtu anchornay.Chli y lad day,nguaidungco thechQnanchorthaigianthongquamQtphuongti~nnao donhubuttonch~nghl;ln. B~ngcachthemkhaini~mlinkcamngueanhvakhaini~mchieudaimediavaoma hlnhDexter,ta co thetl;lOra cackhanangdangbQthaigiangiuacaecomponent medianhutrongmahlnhAmsterdam.ClingdangbQgiua2 componenttrongmQt composite(trongmahlnhAmsterdam)setuongduongnhumQtlink earnngueanh giua2 componentdovacocacd§un6itrodencacanchorthaigian. Tuy nhien,docompositekhangconQidungriengnenkhangthecocacanchorthai giantrencomposite.Dieunaydfindenvi~ckhangthedinhthaigiantrlnhdi€n cho caccomponentcontrongcompositeb~ngkhaini~mchieudaimedia. Nhudatrlnhbaytrongchuang3.III, compositecomponentclingla mQtthanhph§n duQcdinhnghlatungoaivaduQcd~td thanhph§nbelltrongcuah~th6ng.Tu do,ta co thegiai quyetva'ndedinhthaigiantrlnhdi€n chocaccomponentconb~ngcac cachsail: . Do thaigiantrlnhdi€n caccomponentconluanduQcxacdinhke tu llic biitdc1u trlnh di€n composite.Han nua, thai diem trlnh di€n componentcon trong 43 .compositeladQcli;lp,khongpht;lthuQcho~canhhuangde'nba'tky componentcon naokhactrongcomposite.Taco thexemthongtinnaynhula mQthongtintrlnh di€n cuacomposite.Nhungcachnaykhongthui;lnti<$nkhi thayd6i tdcdQtrlnh di€n compositecomponent. Co thedungmQtmedialamnSnxuyensudtst;l'trlnhdi€n composite.Thai gian trlnhdi€n caccomponentconkhacduQcxacdinhtheocacanchortrenmedianSn nay.De khonganhhuangde'nst;l'trlnhdi€n cuacaccomponentconkhac,media nSnco thela mQtcomponentamthanhkhongtie'ng,ho~cmQtcomponentvideo cota'tcaframedSulacach'inhtrongsudt. ._.