7/26/2019 GT Phantichvathietkehethongthongtin32

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CHNG 2. M HNH HA PHN MM HNG I TNG

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Biu gi (package diagram)

- Biu trin khai(deployment diagram)

- Biu cu trc phc hp (composite structure diagram)

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Biu gi m rng (profile package)

Biu hnh vi (Behavior Diagram): Nhm biu ny nhm nm btcc hot ngv hnh vi ca h thng, cng nh tng tc gia cc phn t bn trong v bn ngoi hthng. UML xutby dng biu trong m hnh hnh vibao gm:

- Biu ca s dng(use case diagram)

- Biu hot ng (activity diagram)

- Biu tun t(sequence diagram)

- Biu giao tip (communication diagram)

- Biu trng thi(state machine diagram)

- Biu bao qut tng tc (interaction overview diagram)

- Biu thi khc (timing diagram)

Phn tip theo chng ta s ln lt xem xt chi tit mt sbiu UMLthng gp, mibiu s c trnh by v ngha, tp k hiu UML cho biu vv dminh ha.

2.2.1 Biu ca s dng ngha

Biu ca s dng(use case diagram) biu din ccchc nng ca h thng. N baogm mt tp hp cc tc nhn (actor), ccca s dng (use case) v cc mi quan h(relationship) gia cc ca s dng. C th ni, biu ca s dngch ra s tng tcgia cc tc nhn v h thng thng qua cc ca s dng. Tc nhn c th l con ngihay mt h thng khc cung cp thng tin hay tc ng ti h thng. Biu ca s dngc th c phn r theo nhiu mc khc nhau. T tp yu cu xc nh c ca h

thng, biu ca s dng sch ra h thng cn thc hin iu g tho mn cc yucu ca ngi dng h thng . i km vi biu ca s dng l cc kch bn(scenario) nhm m t chi tit qu trnh thc hin ca s dng .

Tp k hiu UML cho biu ca s dng

Chng ta s ln lt xem xt cc phn t m hnh ny:

H thng: Vi vai tr lthnh phn ca biu ca s dng, h thng biu dinranh gii gia bn trong v bn ngoi ca mt ch th trong phn mm chng ta

ang xy dng. Ch rng mt h thng trong biu ca s dng khng phi

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