Title: DSS Design
1MTIS Approach
Source http//home.ubalt.edu/abento/300/design_pa
per.html
2- Management concept
- Obtaining results through people
- Obtaining results through information systems
- Steering activities
- activities that change the existing ways of
delivering goods and services, or create new
ones. - Types of DSS
- Data oriented (data analysis models)
- model oriented (if-then models)
- data and model oriented (complex models)
3- DSS analysis
- Influence diagram
- requisite variety application
- DSS design
- variables -for-manipulation
- dialog decision tree diagram
- DSS generator-specific implementation principle
4- Influence Diagram Analysis
A. Prepare a problem narrative
B. Classify variables
1.
Decision variables
under control of decision-maker
2.
Outcome variables
results, measure of performance
3.
Exogenous/assumptions
affect but are not affected
4.
Intermediary variables
necessary to link other variables
C. Draw influence diagram
Decision variables
Exogenous and Intermediary variables
Outcome variables
Influences
D. Derive equations for modeling the problem
5- Classification of Variables
Decision variables Intermediate
variables Sales Price
Volume Investment Net Sales
Unit
Cost
Direct Costs
Outcome variables
Mfg Overhead Net After Tax Cost
of Sales Rate of Return
Depreciation
Gross Profit Exogenous/Assumption
Admin Expenses Market Growth
Net Before Tax Tax Rate
6 7- Equations for Sales Price and Investment Decisions
Volume 15,000 (1Mkt Growth) - 6,666
Sales Price Unit Cost 1.3 - .00009
Investment Net Sales Sales Price
Volume Direct Costs Unit Cost Volume Mfg
Overhead .1 Net Sales Cost of Sales Mfg
Overhead Direct Costs Gross Profit Net
Sales - Cost of Sales Depreciation
Function(Investment) Admin Expenses .04 Net
Sales Net Before Tax Gross Profit - Admin
Expenses - Depreciation Net After Tax (1-Tax
Rate) Net Before Tax Rate of Return
Function( Net After Tax, Depreciation,
Investment)
8- Dialog Decision Tree Diagram
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