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PHN TCH THIPHN TCH THIT KT K HHTHTHNG THNG TINNG THNG TIN
Chng 1:
TNG QUAN V H THNG THNG TINV TIN TRNH PHT TRIN H THNG
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TTNG QUAN VNG QUAN V HH THTHNGNGTHNG TINTHNG TIN
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Khi nim c bn v h thng (System)Khi nim v t chc (Organization)
T chc v mi trng hot ng ca t chc.
D liu (Data) v thng tin (information)
Thng tin qun l (Management information)
Ra quyt nh qun l (Management decision making)
nh ngha h thng thng tin (Information Systems)
Phn loI ISCc IS phn loi theo chc nng c bit.
Cc IS phn loi theo mc t chc.
Organisation specific IS
TTNG QUAN VNG QUAN V HH THTHNG THNG TINNG THNG TIN
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System A
SubsystemB
SubsystemC
SubsystemE
SubsystemD
BoundaryInterfaceEnvironmentof System A
KhiniKhinimcmc bbnvnv hh ththngng
Mt h thng l mt tp hp cc thnh phn linquan vi nhau v phi hp hot ng cng vi nhaunhm t c mt mc tiu c th (Lee)
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System Boundary Phm vi h thngBao gm cc thnh phn chu nh hng mnh m bi hthng s hu chng.
System Environment Mi trng h thngCc thnh phn bn ngoi m s thay i hnh vi, ng x hay
thuc tnh ca chng nh hung ti trng thi ca h thng vcc thnh phn ny cng b nh hng bi ng x ca hthng. (Lucey)
Subsystem - H thng con
L mt h thng bn trong h thng khc.
Interface Giao dinNi m s tng tc xy ra gia 2 h thng/ h thng con.
KhiniKhinimcmc bbnvnv hh ththngng
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TT chchc (Organization)c (Organization)
T chc l mt h thng m bao gm cc ti nguynphi hp hot ng vi nhau nhm t n mtmc ch nht nh.
T chc kinh t: x nghip, cng ty,
T chc x hi: bnh vin, cu lc b,
Sales
IT
HRIPurchasing
Training
Mi trng
hot ngca t chc
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Mi trng t chc: Mi trng bn ngoi cha cct chc khc lin quan n hot ng ca t chc.
Mi trng kinh t: khch hng, nh cung cp, ngn hng,
Mi trng x hi: nh nc, cng on,
Hot ng t chc:
T chcHng haThng tin Thng tin
Hng ha
MitrMitrngv hongv hot t ngcngcatat chchcc
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D liu (data):L cc s kin th, ri rc
"Data is the raw input from which information is providedLucey
Thng tin (information):
Information is data that have been processed in such a way as tobe useful to the recipient.Lucey
Thng tin l ti nguyn ca t chc, v c vai tr
quan trng quyt nh s thnh cng ca t chc.Thng tin c to ra v truy xut ngy cng tng
Yu cu qun l thng tin hiu qu.X l to ra cc thng tin mi c gi tr hn
DD liliuvthngtinuvthngtin
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Cc Cc c ic imcmcathngtinathngtin
Cc c im ca thng tin tt
relevance: thch hp
accuracy: chnh xc
completeness: y
confidence in the source: ngun thng tin tin cycommunication to the right person: truyn t ting ngi
timing: cp nht
detail: chi titchannels of communication: l knh truyn thng
understandability: d hiu
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Thngtin quThngtin qunlnlManagementinformationManagementinformation
Thng tin n thit ho doanhnghip v gip ra quytnh nhiu m qu n l khcnhau trong t chc
Anthonys Pyramid: c trc q n l ca t chc
Oper tio l
T ctic l
Str tegic
L rge timehorizo
Sm lltimehorizo
Summ rydata
Detaildata
Unstructuredproblems
Structuredproblems
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Str tegic lanning
ManagementC ntrol
OperationalControl
5 years +
1 - 5 years
now
12 months
CcmCcmcra quycra quyt t nhnh
Operati nal
Tactical
Strategic
Operati nalActivity
EIS DSS
EIS
Raw Data
TPS RTS
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CcmCcmcra quycra quyt t nhnh
1. Mc chin lc (Strategic level): Strategic PlanningDi hn, lin quan n cc vn phc tp, tnh khng chcchn v ri ro cao.
V d: Xc nh cc mc tiu cho cng ty, lp k hoch tc cc mc tiu, chn dng sn phm mi, lnh vc kinhdoanh mi,
2. Mc chin thut (Tacticallevel): gim st t chc mt thi im no
m bo t c v s dng hiu qu cc ti nguynV d: Quyt nh ngn qu b phn, quy hoch cc v tr nhnvin, chn sn phm ci tin, lp k hoch cng vic trung
hn, nh gi sn phm mi, 3. Mc thc hin (Operationallevel)
m bo cc nhim v c th c thc hin hiu quV d: Tuyn nhn vin, lp lch sn xut, qun l tn kho,
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Information Systems (IS)Information Systems (IS)
nh ngha rng:
Mt h thng thng tin:L mt phng tin c th nhn d liu (input), lu tr v xl d liu, to ra thng tn (output) cho mc ch h tr raquyt nh.C th thc hin bng tay hoc my tnh.
H thng thng tin ca t chc cha:mt c s thng tin (information base) m bao gm mt haynhiu ngun thng tin khc;
mt tp cc x l m c thc hin bi ngi hay my truy xut, cp nhp v x l thng tin.V d
mt t chc nh th vin c c s thng tin l sch, loi sch,; cc x l l tm, mn, tr sch,
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HH ththngthngtintngthngtint ng hang haComputerized Information SystemsComputerized Information Systems
H thng thng tin t ng ha bao gm:Mt hay nhiu c s d liu (databases) hay tp tin (files) lutr c s thng tin.
Mt hay nhiu chng trnh ng dng (Application programs)
truy xut v cp nht c s thng tin bng my.Mt hay nhiu giao din ngi dng (user interface) cho ccnhm ngi dng khc nhau.
Computer-Based Information System = Databases +Applications + Interface
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Purchasing Systems: H thng mua hng
Production Systems: H thng qun l sn xut
Human Resource Systems: H thng qun l nhn s
Finance Systems: H thng qun l ti chnh
Sales Systems: H thng bn hng
Marketing Systems: H thng qun l tip th
PhnloPhnloi hi h ththngthngtinngthngtintheochtheochcnngcnng
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Management Information System
StockFinanceCustomersEmployees
Transaction Processing Systems
Executive Information System
lanning
PhnloPhnloi hi h ththngthngtinngthngtintheomtheomctct chchcc
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HH ththngthngtinphnlongthngtinphnloiitheomtheomctct chchcc
Operational Level: bao gm cc h thng x l giaodch (TPS - Transaction Processing System)
Data Processing Systems: H thng x l d liuProcess Control Systems: H thng iu khin tin trnhOffice Automation Systems: H thng t ng nghip v vn
phng
Tactical LevelMIS - Management Information Systems: H thng thng tinqun l.DSS - Decision Support Systems: H thng h tr ra quyt
nh.Strategic Level
EIS - Executive Information Systems: H thng thng tin iuhnh
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Transaction Processing SystemsTransaction Processing Systems
Banking
Systems EPOS Systems
Healthcare Systems
Insurance SystemsLeisure Industry
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Management Information SystemsManagement Information Systems
0
20
40
60
80
100
1st
Qtr
2nd
Qtr
3rd
Qtr
4th
Qtr
East
West
North
Decision SupportSystems
OfficeAutomationSystems
Knowledge Based Systems
Executive InformationSystems