Architecture of Decision Support System CHAPTER 2 Architecture of Decision Support System Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.1 Meaning Architecture of Decision Support System What is Architecture of Decision Support System? Structure of DSS components Relation between DSS components Relation between external environment Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.2 Advantage of architecture of DSS Know how the component working Share resource by any department Make the sequence in the process Communicate between component Support group decision Support planning more efficiency Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.3 Factors of DSS Architecture Development Organization’s Strategy Consider in master plan and follow its Level of Management Type of problem  Structured Semi structured Unstructured Characteristic of organization business Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.4 Components of DSS Architecture Decision Support System by Simulation Model (Ajarn Chat Chuchuen) Decision Support Systems and Intelligent Systems, Efraim Turban and Jay E. Aronson, 6th edition, Copyright 2001, Prentice Hall, Upper Saddle River, NJ

2.4 Components of DSS Architecture 4 Main components of DSS architecture Data Management Model Management User Interface Management Knowledge Management Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.4 Components of DSS Architecture Tool for develop DSS Hardware Operating System (OS) Network System Software Modeling tools Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.4 Components of DSS Architecture Environment of DSS User Programmer External Data Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.5 Data Management Component of Data Management Database Database Management System (DBMS) Data Directory Query Facility Extraction Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.5 Data Management : Structure Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) The Capabilities of DBMS in a DSS Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.6 Model Management Model base Model base management system Modeling language Model directory Model execution, integration, and command processor Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.6 Model Management Model Base Contains routine and special statistical, financial, forecasting, management science, and other quantitative models that provide the analysis capabilities in a DSS. Model building blocks can be Employed on their own for applications Used as components of larger models Used to determine the values of variables and parameters in a model Modeling tools C+, JAVA, Excel Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.6 Model Management Model execution is the process of controlling the actual running of the model. Model integration involves combining the operations of several models when needed Model command processor is used to accept and interpret modeling instructions from the user interface component and route them to MBMS, model execution, or integration functions. Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.6 Model Management : Structure Models (Model Base) Strategic, tactical, operational Statical, financial, marketing, management science, accounting, engineering, etc. Model building blocks Model Directory Model Base Management Modeling command: creation Maintenance: update Database interface Modeling language Data Management Interface KB Subsystem Model execution, Integration, and Command processor Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.6 Model Management Major Functions of the MBMS Create models Allows users to manipulate models Stores, retrieves and manages different types of models Accesses and integrates the model building blocks Catalogs and displays the directory of models Tracks model data and application use Interrelates models with appropriate linkages with the database Manages and maintains the model Uses multiple models Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.7 Knowledge Management Provides expertise in solving complex unstructured and semi-structured problems Expertise provided by an expert system or other intelligent system Advanced DSS have a knowledge based (management) component Leads to intelligent DSS Example: Data mining Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.7 Knowledge Management Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) 2.7 Knowledge Management Major Functions of the KBMS Providing tools for decision in special case Intelligent Decision modeling System Analysis for uncertainty situation Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.8 User Interface Management Includes all communication between a user and the MSS Graphical user interfaces (GUI) Voice recognition and speech synthesis possible To most users, the user interface is the system Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.8 User Interface Management : Structure Data Management And DBMS KB Subsystem Model Management And MBMS User InterfaceManagement System (UIMS) Natural Language Processor Input ActionLanguage Output Display Language Printers, Plotters Users Terminal Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

2.8 User Interface Management Major Capabilities of The UIMS Provides a graphical user interface-web browser Accommodates the users with a variety of input devices Presents data with a variety of formats and output devices Gives users help capabilities, prompting, diagnostic and suggestion routines Provides interactions with the database and the model base Stores input and output data Provides color graphics, 3-dimensional graphics, and data plotting. Has windows to allow multiple functions to be displayed concurrently Can support communication among and b/w users and builders of MSS Provides training by example Provides flexibility and adaptiveness Interacts in multiple, different dialog styles Captures, stores, and analyze dialog usage Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) The User Different usage patterns for the user, the manager, or the decision maker Managers Staff specialists Intermediaries 1. Staff assistant 2. Expert tool user 3. Business (system) analyst 4. GSS Facilitator Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) DSS Hardware Evolved with computer hardware and software technologies Major Hardware Options Mainframe Workstation Personal computer Web server system Internet Intranets Extranets Decision Support System by Simulation Model (Ajarn Chat Chuchuen)

Decision Support System by Simulation Model (Ajarn Chat Chuchuen) Question ??? Decision Support System by Simulation Model (Ajarn Chat Chuchuen)