Thit k kin trc phn mmKhi nim v kin trc phn mm:Cc phong cch kin
trcCc phng php thit k*
Kin trc phn mmKhi nim:L mt cu trc bao gm cc thnh phn phn mm, cc
tnh cht c th thy c t bn ngoi ca cc thnh phn ny, v cc lin kt gia
chng *Cc thnh phn phn mm c th gm:Cc moduleCc cu trc d liu, c s d
liu
*
Kin trc phn mmMc ch s dng: nh gi tnh hiu qu ca phn mm trong vic
p ng cc y/c ca h thngCn nhc chn ra kin trc ph hp nht gia cc kin trc
khc nhauGip d tr sm v tng i chnh xc cc ti nguyn cn chun b cho giai
on ci t phn mmng vai tr nh thit k tng th, lm nn tng cho cc thit k
chi tit sau Gip gim thiu cc ri ro trong qu trnh xy dng phn mm sau
ny *
Kin trc phn mmCc phong cch kin trcKin trc ly d liu lm trung tm
(data-centered architectures)Kin trc lung d liu (data flow
architectures)Kin trc gi v tr v (call and return architectures)Main
module/sub moduleRemote procedure call*
Kin trc ly d liu lm trung tm*
Kin trc lung d liu*
Kin trc gi v tr v*
Kin trc gi v tr vKin trc ny cn c gi l cu trc chng trnh, hay phn
cp iu khinMt s khi nim lin quan:Fan-in: ca mt module l o s lng
module khc m iu khin/gi module Fan-out: ca mt module l o s lng
module m module iu khin/giChiu su (depth): xc nh s mc iu khin/gi
rng (width): xc nh phm vi iu khin/gi*
Thit k kin trc phn mmPhng php c s dng: Thit k c cu trc
(structured design)
c im ca phng php: C hng lung d liu, cung cp cch thun tin chuyn t
cc biu lung d liu sang m hnh kin trc phn mm*
Thit k c cu trc1. Xc nh kiu lung thng tin2. Xc nh cc bin ca
lung3. Chuyn BLD sang lc cu trc chng trnh4. Tinh chnh lc cu trc
CT5. c t cc module v lung iu khinCc biu lung DL*L cu trc chng
trnhCc c t module
Cc kiu lung thng tinLung bin i (transform flow)
Lung giao tc (transaction flow)L loi lung bin i c bit, trong c
mt lung vo v c nhiu lung raTrung tm bin iLung voLung ra*
Lung giao tc*
Chuyn lung bin iBc 1: Lm mn cc biu lung d liu n mc cn thitBc 2:
Xc nh cc bin ca lung d liu xc nh trung tm bin i v cc lung vo v raBc
3: Chuyn i BLD sang lc cu trcBc 4: Tinh chnh LCT*
Chuyn lung bin i Bc 1*
Chuyn lung bin i Bc 1*
Chuyn lung bin i Bc 1*
Chuyn lung bin i Bc 2*
Chuyn lung bin i Bc 3*
*
Chuyn lung bin i Bc 4*
Chuyn lung bin i Bc 4*
Chuyn lung giao tc Bc 2*
Chuyn lung giao tc Bc 3*
Chuyn lung giao tc Bc 3*
Tm ttKin trc phn mm v vai tr ca vic thit k KTPMCc phong cch kin
trcPhng php thit k c cu trcCc loi lung d liuLung bin iLung giao
tcCch chuyn i t BLD sang lc cu trc chng trnh
*
Cm n!*
*: nh ngha ca cc tc gi Bass, Clements v Kazman trong tc phm
Software architecture in practice, 1998*
