Decision-Support Systems(DSS) Serve management level with data analysis for making decisions Input Low-volume data or massive databases, analytic models, and data analysis tools Processing: Interactive, simulations, analysis Output: Special reports, decision analyses responses to queries Users: Professionals, staff managers
HUANG Lihua, Fudan University Feb., - July., 2006 Decision-Support Systems (DSS) • Serve management level with data analysis for making decisions – Input: Low-volume data or massive databases, analytic models, and data analysis tools – Processing: Interactive, simulations, analysis – Output: Special reports, decision analyses, responses to queries – Users: Professionals, staff managers
Woyage-estimating decision-support system PC Ship file(e.g speed capacity) Port distance restrictions file 捕一啥 Analytical Fuel consumption st file dels Online database Ship charter hire queries口 history cost file ort expense file
HUANG Lihua, Fudan University Feb., - July., 2006 Voyage-estimating decision-support system
Executive Support SystemS(ESS) Provide communications and computing environment that serves the organizations strategic level Input External and internal aggregate data Processing: Graphics, simulations, interactive Output: Projections, responses to queries Users: Senior managers
HUANG Lihua, Fudan University Feb., - July., 2006 Executive Support Systems (ESS) • Provide communications and computing environment that serves the organization’s strategic level – Input: External and internal aggregate data – Processing: Graphics, simulations, interactive – Output: Projections, responses to queries – Users: Senior Managers
MOdel of a typical executive support system ESS Workstation M enus Graphics Communications Local processing ESS ESS Workstation Workstation Internal Dat External Data TPS/MIS data Dow Jones F■ Financial data · nternet news Menus Office systems feeds Menus Graphics Modeling · Standard& Graphics Communications analysis Poor’s Communications Local processing Local processing
HUANG Lihua, Fudan University Feb., - July., 2006 Model of a typical executive support system
Interrelationships among systems Executive Support Systems (ESS) Management Management Systems Sy ystems (MIS) (DSS) Transaction Processing Systems TPS)
HUANG Lihua, Fudan University Feb., - July., 2006 Interrelationships among systems