Matakuliah
Tahun
: Decision Support System
: 2009
DSS Basic Concept - 2
Pertemuan - 04
Bina Nusantara University
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Learning Objectives
• Memahami komponen-komponen DSS dan
strukturnya.
• Mengerti bagaimana interaksi DSS dan Web,
peran user dalam DSS serta perangkat keras
DSS
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Diskusi Pembuka
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Definisi DSS
Cakupan aplikasi
Karakteristik dan kemampuan DSS
Manfaat dan keterbatasan
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Komponen dari DSS
• Subsystems:
– Data management
• Managed by DBMS
– Model management
• Managed by MBMS
– User interface
– Knowledge Management and organizational knowledge base
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Data Management Subsystem
• Komponen :
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Database
Database management system
Data directory
Query facility
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Database
• Interrelated data extracted from various sources, stored
for use by the organization, and queried
– Internal data, usually from TPS
– External data from government agencies, trade associations,
market research firms, forecasting firms
– Private data or guidelines used by decision-makers
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Database Management System
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Extracts data
Memanage data dan relationshipnya
Updates (add, delete, edit, change)
Retrieves data (accesses it)
Queries dan manipulasi data
Menerapkan data dictionary
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Data Directory
• Catalog of all data
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Contains data definitions
Answers questions about the availability of data items
Source
Meaning
Allows for additions, removals, and alterations
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Model Management Subsystem
• Komponen :
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Model base
Model base management system
Modeling language
Model directory
Model execution, integration, and command processor
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Models
• Strategic
– Supports top management decisions
• Tactical
– Used primarily by middle management to allocate resources
• Operational
– Supports daily activities
• Analytical
– Used to perform analysis of data
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Model Base Management System
• Functions:
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Model creation
Model updates
Model data manipulation
Generation of new routines
• Model directory:
– Catalog of models
– Definitions
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Activitas Model Management
• Model execution
– Mengendalikan running dari model
• Model command processor
– Receives model instructions dari user interface
– Routes instructions ke MBMS atau module execution atau
integrasi fungsi2
• Model integration
– Mengkombinasikan beberapa operasi model-model
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Struktur subsistem model management
Model (basis Model)
•Strategis, taktis, operasional
•Statistik, keuangan, pemasaran,
•ilmu manajemen, akuntasi,teknik
•Blok pembangunan model
Model
directory
Model Base management
•Perintah Pemodelan : creation
•Pemeliharaan : Update
•Antarmuka database
•Bahasa Pemodelan
Manajemen
Data
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Manajemen
antarmuka
Eksekusi model
Integrasi,
Dan prosesor perintah
Subsistem
Berbasis Pengetahuan
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User interface atau antarmuka
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User Interface System
Data management
and DBMS
Knowledge-based
system
Model
management and
MBMS
User Interface Management System (UIMS)
Natural Language Processor
Input
Action
Languages
Based on Figure 3.6, Schematic
View of the User Interface
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Users
Output
Display
Language
PC Display
Printers, Plotters
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User Interface Management System
• GUI
• Natural language processor
• Interaksi dengan model management dan data
management subsystems
• Contoh
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Speech recognition
Display panel
Tactile interfaces
Gesture interface
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Knowledge-Based Management System
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Komponen Expert atau intelligent agent system
Complex problem solving
Menangani operations dari komponen lain
Dapat terdiri dari beberapa systems
Kadang text-oriented DSS
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DSS Classifications
• Alter
Extent to which outputs can directly support or determine the
decision :
– Data oriented
• Data retrieval : File drawer System dan Data Analysis System
• Data analysis : Analysis Information System
– Model oriented
• Simulation : Accounting Models dan Representational Models
• Suggestion : Optimization Models dan Suggestion Model
• Holsapple dan Whinston
– Text oriented, database oriented, spreadsheet oriented, solver
oriented, rule oriented, or compound
• Intelligent
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(ad hoc analysis)
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DSS Classifications
• Donovan and Madnick
– Institutional
– Problems of recurring nature
• Ad hoc
– Problems that are not anticipated or are not repetitive
• Hackathorn and Keen
– Personal support, group support, or organizational support
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DSS Classifications
• GSS v. Individual DSS
– Decisions made by entire group or by lone decision maker
• Custom made v. vendor ready made
– Generic DSS may be modified for use
• Database, models, interface, support are built in
• Addresses repeatable industry problems
• Reduces costs
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Web dan DSS
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Data collection
Communications
Collaborations
Download capabilities
Run on Web servers
Simplifies integration problems
Increased usability features
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DSS Hardware
• De facto standard : Komputer dan jaringan
• Web server with DBMS:
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Operates using browser
Data stored in variety of databases
Can be mainframe, server, workstation, or PC
Any network type
Access for mobile devices
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Tugas Pembelajaran
• Dari Materi Tambahan : ModelDriven_DSS.pdf
– Sebutkan tipe-tipe DSS dan teknologinya ?
– Apa keuntungan dengan DSS yang berbasis WEB ?
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