S DNG VISIO V CC S

MN PHT TRIN H THNG THNG TIN

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MC LC

1. S phn r chc nng (Functional Decomposition Flowchart) ............. 3

To s phn r chc nng: ........................................................................................ 3

2. S chc nng cho (Cross Functional Flowchart): ................................ 8

Cc loi k hiu thng s dng trong s chc nng cho: ................................... 11

3. S dng chy d liu (Data Flow Diagram DFD) ............................ 13

Xy dng s DFD (theo k php ca DeMarco and Yourdon) ............................... 13

Xy dng s DFD (theo k php ca Gane and Sarson) ........................................ 13

4. M hnh d liu quan h ........................................................................... 14

Cc quan h gia cc thc th: .................................................................................... 15

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1. S phn r chc nng (Functional Decomposition Flowchart) Vo File/New/Business/Organization Chart

To s phn r chc nng:

Bn cng c th to 1 s phn r chc nng bng cch Import t 1 file dng excel m bn to t trc. V d: bn to 1 file excel c ni dung sau:

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Trong visio, vo menu Organization Chart/Import Organization Data

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Sau khi click vo Finish Kt qu s l:

Sauk hi to xong s , bn nn sp xp li v tr ca cc chc nng cho ph hp bng cch click chut vo cc chc nng, thc hin ko v di chuyn n v tr mi ph hp.

2. S chc nng cho (Cross Functional Flowchart):

Vo File/New/Flowchart/Cross Functional Flowchart

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Xut hin hp thoi Flowchart

Chn kiu hin th s : hng nm ngang (horizontal) hay thng ng (vertical). Chn s ct trong s bm OK. Xut hin s mu nh hnh bn di

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Double click chut tri in tn h thng/Tn tin trnh v tn cc thnh phn tham gia thc hin cc chc nng ca h thng. Panel bn tri (phn Basic Flowchart Shapes) l danh sch cc k hiu cn s dng trong s chc nng cho.

Ring k hiu ca kho lu tr d liu ngoi vi, so snh i chiu, sp xp bn phi vo File/Shapes/Flowchart/Miscellaneous Flowchart Shapes ly cc k hiu ny.

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Khi v s chc nng cho, bn phi xc nh xem cn s dng k hiu no, thc hin chn k hiu, ko k hiu vo mn hnh nhp liu. Khi cn ghi ni dung vo k hiu, double click vo k hiu ri nhp ni dung.

Cc loi k hiu thng s dng trong s chc nng cho:

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Thao tc th cng

V d: chun b x l mt chng ha n

Thao tc trn my

V d: lp n t mua hng

Dng chy

Biu din hng v trnh t ca dng chy

Ti liu

V d: mu n hng ca cng ty

Ni lu tr ngoi tuyn tng qut y l ni lu tr khng c ni trc tip vi n v x l trung tm ca my tnh. Do n bao gm tt c nhng phng tin lu tr bng tay. V d: mt tp tin ha n bng tay

Du ni ht trang

So snh i chiu

Sp xp

Du ni tip trang

Ni lu tr d liu (trn my)

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3. S dng chy d liu (Data Flow Diagram DFD)

Xy dng s DFD (theo k php ca DeMarco and Yourdon) Vo File/New/Flowchart/Data Flow Diagram

Xy dng s DFD (theo k php ca Gane and Sarson) Vo File/New/Software and Database/Data Flow Model Diagram

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4. M hnh d liu quan h Vo File/New/Software and Database/Database Model Diagram

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Cc quan h gia cc thc th: Trong visio, khng th th hin c quan h nhiu nhiu (n-n) (trong m hnh d liu quan nim). Cho nn, bn phi chuyn cc quan h nhiu nhiu thnh cc quan h 1 nhiu (theo cc quy tc chun ha). V d: C 2 thc th: DonDatHang (n t hng) v NguyenVatLieu (Nguyn Vt Liu). Mi quan h gia 2 thc th ny l n-n (Mt n t hng c th t nhiu nguyn vt liu khc nhau, mt nguyn vt liu c th c mt trn nhiu n t hng) Pht sinh thm 1 thc th mi, ly kha t 2 thc th ny sang lm b kha bn thc th mi.

DonDatHang(MaDDH, NgayLap)

NguyenVatLieu(MaNVL, TenNVL, DVT, SoLuongTon)

ChiTietDDH(MaDDH, MaNVL, SoLuong, DonGia)

Sau , s dng visio to 3 thc th ny, v to cc mi quan h gia cc thc th:

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Nu bn mun cc du mi tn ch mi quan h xut hin loi quan h Vo menu Database/Options/Document

Xut hin hp thoi:

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