Internal Data page 98

The term “internal data” is used here to denote any information useful to the decision-making process found within the company.

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The components of DSS Mathematical problems PART 2 page 92

Data management subsystem

• inlcudes a database that contains relevenat data, managed by DBMS. CAn be interconnected with DW.

1. DSS database

• internal data: from orgs Transaction Processing System (TPS). Monthly payroll, operational data from functional areas of the business, machine maintenance scheduling. future hiring pans. Included in DW.
• external data: industry data, market research consensus data, govt regs, tax rate schedules, national economic data.
• private data: guidlines used by specific decision makers as assesments of specific data and or situations.
  

1. DBMS
2. Data query
3. Query facility
   

Model management subsytem

software package: financial, statictsical, management science, quantitive models that provide analytical capabilities and software mgt. Often call model base management system MBMS. Can be connected to external storage.

• Model base

1. Strategic models: used by top managers for strategic planning responsibilities.
2. Tactical models: used by middel managers for allocation and controlling orgs resources.
3. Operational models: support day to day working activities.
4. Analytical models: used to perform analysis on data.
   

• MBMS
• Modeling langugae
• Model directory
• Model execution, integration, command processor.
  

User interface subsytem

User commiunicated with and comand the DSS. User is considered part of the system.

Knowledge based management subsytem

can support any of the other components or act as independant component. Augments system/ decision maker with intelligence.