Decision Support System (DSS) - Kudang Boro Seminar

1y ago
18 Views
2 Downloads
1.53 MB
24 Pages
Last View : Today
Last Download : 2m ago
Upload by : Casen Newsome
Transcription

Decision Support System(DSS)1Decision Making Every decision and action that humans makeis inherently related to decision making.But humans have weaknesses (subjective,bias, forgetful, imprecise, and slow) in manycases of decision making.Therefore humans need to be assisted bycomputer-based tools called DSS to improvethe quality of decision making.21

Introduction: Think how you takedecisions in the following situation How do you go for work?How do you choose the best university for yourmaster degree?How do you know the best car to buy?How do you determine the best land for youagroindustry investment?How do you deliver your products to manybuyers living in different geographical areas?How do you select your candidatewife/husband?How do you select qualified papers to bepublished in an international conferenceproceeding?3Introduction: who will be participatedin these decisions making situations How do you go for work?How do you choose the best university for yourmaster degree?How do you know the best car to buy?How do you determine the best land for youagroindustry investment?How do you deliver your products to manybuyers living in different geographical areas?How do you select your candidatewife/husband?How do you select qualified papers to bepublished in an international conferenceproceeding?42

Introduction: what aspects areexamined in these decisions makingsituations How do you go for work?How do you choose the best university for yourmaster degree?How do you know the best car to buy?How do you determine the best land for youagroindustry investment?How do you deliver your products to manybuyers living in different geographical areas?How do you select your candidatewife/husband?How do you select qualified papers to bepublished in an international conferenceproceeding?5Introduction: which of these decisionmaking situations can besolved withformal or mathetical methods and tools? How do you go for work?How do you choose the best university for yourmaster degree?How do you know the best car to buy?How do you determine the best land for youagroindustry investment?How do you deliver your products to manybuyers living in different geographical areas?How do you select your candidatewife/husband?How do you select qualified papers to bepublished in an international conferenceproceeding?63

Introduction: rank based on thestructuredness of these decisionsmaking situations How do you go for work?How do you choose the best university for yourmaster degree?How do you know the best car to buy?How do you determine the best land for youagroindustry investment?How do you deliver your products to manybuyers living in different geographical areas?How do you select your candidatewife/husband?How do you select qualified papers to bepublished in an international conferenceproceeding?7Decision SupportSystems Decision Support MethodologyTechnology ComponentsDevelopmentDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ84

Decision Support Systems:An Overview CapabilitiesStructureClassifications9Decision Making Along aContinuum (Simon)Highly UnstructuredHighly sionsSemistructured Decisions105

Three Phase Decision-makingProcess (Simon) Intelligence--searching for conditions that call fordecisions Design--inventing, developing, and analyzing possiblecourses of action Choice--selecting a course of action from thoseavailable11DSS Configurations Supports individuals and teamsUsed repeatedly and constantlyTwo major components: data and modelsWeb-basedUses subjective, personal, and objective dataHas a simulation modelUsed in public and private sectorsHas what-if capabilitiesUses quantitative and qualitative modelsDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ126

TABLE 3.1 DSS versus EDP.DimensionDSSEDPUseActivePassiveUserLine and efficiencyTimeHorizonPresent and futurePastObjectiveFlexibilityConsistencySource: Alter [1980].EDP: Electronic Data ProcessingDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ13Working Definition of DSS A DSS is an interactive, flexible, and adaptable CBIS,specially developed for supporting the solution of anon-structured management problem for improveddecision making. It utilizes data, it provides easy userinterface, and it allows for the decision maker’s owninsights DSS may utilize models, is built by an interactiveprocess (frequently by end-users), supports all thephases of the decision making, and may include aknowledge componentDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ147

Characteristics andCapabilities of DSS (Figure 3.1)1. Provide support in semi-structured and unstructuredsituations, includes human judgment andcomputerized information2. Support for various managerial levels3. Support to individuals and groups4. Support to interdependent and/or sequential decisions5. Support all phases of the decision-making process6. Support a variety of decision-making processes andstyles(more)Decision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ157. Are adaptive8. Have user friendly interfaces9. Goal: improve effectiveness of decision making10. The decision maker controls the decision-makingprocess11. End-users can build simple systems12. Utilizes models for analysis13. Provides access to a variety of data sources,formats, and typesDecision makers can make better, more consistentdecisions in a timely mannerDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ168

17DSS Components1. Data Management Subsystem2. Model Management Subsystem3. Knowledge-based (Management) Subsystem4. User Interface Subsystem5. The User(Figure 3.2)Decision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ189

19The Data ManagementSubsystem DSS databaseDatabase management systemData directoryQuery facility(Figure 3.3)Decision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ2010

21DSS In Focus 3.2: The Capabilities of DBMS in a DSS Captures/extracts data for inclusion in a DSS database Updates (adds, deletes, edits, changes) data records and files Interrelates data from different sources Retrieves data from the database for queries and reports Provides comprehensive data security (protection from unauthorized access, recoverycapabilities, etc.) Handles personal and unofficial data so that users can experiment with alternativesolutions based on their own judgment Performs complex data manipulation tasks based on queries Tracks data use within the DSS Manages data through a data dictionaryDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ2211

DSS Database Issues Data warehouseData miningSpecial independent DSS databasesExtraction of data from internal, external, and privatesourcesWeb browser data accessWeb database serversMultimedia databasesSpecial GSS databases (like Lotus Notes / DominoServer)Online Analytical Processing (OLAP)Object-oriented databasesDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJCommercial databasemanagement systems (DBMS)23The Model ManagementSubsystem Analog of the database management subsystem(Figure 3.4)Model baseModel base management systemModeling languageModel directoryModel execution, integration, and commandprocessorDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ2412

25Model Management System Strategic Models: Non routinemergers, impact analysis, capital budgeting Tactical Models: Allocation & Controllabor requirements, sales promotion planning Operational Models: Routine-day-to-dayproduction scheduling, inventory control, qualitycontrol Analytical Models:SAS, SPSS, OR, data mining2613

Model Management Issues Model level: Strategic, managerial (tactical), andoperational Modeling languages Lack of standard MBMS activities. WHY? Use of AI and fuzzy logic in MBMSDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ27MBMS: Model Base Management System2814

The Knowledge BasedSubsystem Provides expertise in solving complexunstructured and semi-structured problemsExpertise provided by an expert system or otherintelligent systemAdvanced DSS have a knowledge based(management) componentLeads to intelligent DSSExample: Data miningDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ29The User Interface (Dialog)Subsystem Includes all communication between a user andthe DSSGraphical user interfaces (GUI)Voice recognition and speech synthesis possible To most users, the user interface is the system Decision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ3015

313216

33The User of DSSDifferent usage patterns for the user, themanager, or the decision maker ManagersStaff specialistsIntermediaries1. Staff assistant2. Expert tool user3. Business (system) analyst4. GSS FacilitatorDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ3417

DSS HardwareEvolved with computer hardware andsoftware technologiesMajor Hardware Options MainframeWorkstationPersonal computerWeb server system InternetIntranetsExtranetsDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ35Distinguishing DSS fromManagement Science and MIS DSS is a problem-solving tool and isfrequently used to address ad hoc andunexpected problemsDifferent than MISDSS evolve as they developDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ3618

373819

DSS ClassificationsAlter’s Output Classification (1980) Degree of action implication of system outputs(supporting decision) (Table 3.4) Holsapple and Whinston’s Classification1. Text-oriented DSS2. Database-oriented DSS3. Spreadsheet-oriented DSS4. Solver-oriented DSS5. Rule-oriented DSS6. Compound DSSDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ394020

Intelligent DSS Categories onAssimilativeDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ414221

Alternate Categories ofIntelligent DSS SymbioticExpert-system basedAdaptiveHolisticDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ43Other ClassificationsInstitutional DSS vs. Ad Hoc DSS Institutional DSS deals with decisions of a recurringnatureAd Hoc DSS deals with specific problems that areusually neither anticipated nor recurringDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ4422

Other Classifications (cont’d.) Degree of nonprocedurality (Bonczek et al., 1980) Personal, group, and organizational support(Hackathorn and Keen, 1981) Individual versus group support systems (GSS) Custom-made versus ready-made systemsDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ45Summary DSS has many definitions Complexity of managerial decision making isincreasing Computer support for managerial decisionmaking Several MSS technologies including hybrids4623

Summary Fundamentals of DSS Components of DSS Major capabilities of the DSS components Major DSS categoriesDecision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th editionCopyright 2001, Prentice Hall, Upper Saddle River, NJ474824

Decision Support System (DSS) Decision Making Every decision and action that humans make is inherently related to decision making. But humans have weaknesses (subjective, bias, forgetful, imprecise, and slow) in many cases of decision making. Therefore humans need to be assisted by computer-based tools called DSS to improve

Related Documents:

The DSS-8 is expandable by cascading two or more DSS-8 s together. As all ports support 200Mbps, the DSS-8 can be cascaded from any port and to any number of DSS-8 s. The DSS-8 is a perfect choice for sites planning to upgrade to Fast Ethernet in the future. Ethernet workgroups can connect to the DSS-

o PCI DSS - Summary of Changes from PCI DSS version 2.0 to 3.0 o PCI DSS Quick Reference Guide o PCI DSS and PA-DSS Glossary of Terms, Abbreviations, and Acronyms o Information Supplements and Guidelines o Prioritized Approach for PCI DSS o Report on Compliance (ROC) Reporting Template and Reporting Instructions

known as Decision Support Systems (DSS) [3]. DSS is a computer-based system of information processing which is mainly developed to support organizational and enterprise affairs. Today authors believe that DSS could be told to any system that can support decision-making processes. In other words, DDSs are information systems which support

Undersea Warfare Decision Support System (USW DSS) Overview PAPM, PEO IWS 5E USW Command and Control: Mike Essig . USW DSS is the pillar USW Command and Control (C2) Battle Management Aid (BMA) Program of Record (PoR) supporting intelligent C2 of theater and group forces (e.g. surface, . (w/other USW DSS Nodes and Systems) -Track and .

credibility of Decision Support Systems (DSS), measuring the efficacy of the decisions taken by the DSS is yet to be proven. As previous works identifies the complexities involved in measuring the efficiency of DSS, most of the time DSS efficiency is case dependent. The list of methods for collecting and analyzing data,

Hard Drive Capacity 100G free for DSS Control Client Ethernet port 1000Mbps DSS Pro Comprehensive and Expandable Dahua VMS Introduction DSS Pro, Comprehensive and Expandable Dahua VMS, is a flexible, scalable, high reliable and powerful central management system. With client-server architecture, DSS

7. Decision Support System (DSS) A decision support system or DSS is a computer based system intended for use by a particular manager or usually a group of managers at any organizational level in making a decision in the process of solving a semi structured decision (Figure 7).

Am I My Brother’s Keeper? The Analytic Group as a Space for Re-enacting and Treating Sibling Trauma Smadar Ashuach The thesis of this article, is that the analytic group is a place for a reliving and re-enactment of sibling relations. Psychoanalytic and group analytic writings about the issue of siblings will be surveyed. Juliet Mitchell’s theory of ‘sibling trauma’ and how it is .