This document discusses decision support systems (DSS) and the ETL process. It defines DSS as systems that can help solve both semi-structured and unstructured problems. It lists the key characteristics and types of DSS, as well as how they support decision making. The document also outlines the advantages and disadvantages of DSS. Finally, it defines the ETL process as a method to transfer data through extraction, transformation, and loading steps from a source to a target destination.

1. Decision Support System and ETL Process
GROUP NO. 13
Presented by-
Joel Abraham easo 18
Vishal Mishra 47
Abhilash Prakash 62
Ravi kumar 108
Roshan kumar 111

2. CONTENTS
• Definition
• Characteristics Of DSS
• DSS For Decision-making
• Decision Support Tools
• DSS Types
• Decision Making As A Component Of Problem Solving
• DSS Advantages
• DSS Disadvantages
• ETL Process

3. DECISION SUPPORT SYSTEMS
 Decision support systems (DSS)
– Offer potential to assist in solving both semi-structured and
unstructured problems

4. CHARACTERISTICS OF DSS
• Interaction
• Ancillary
• Identifiable
• Task-oriented
• Integrated software
• Supports individual and group decision making

5. DSS FOR DECISION-MAKING
• Decision Preparation
• Decision Structuring
• Context Development
• Decision-making
• Decision Propagation
• Decision Management

6. DECISION SUPPORT TOOLS
• Multi-Dimensional Analysis Software
• Query Tools
• Data Mining Tools

7. DSS TYPES
• Model-driven
• Data-driven
• Communication-driven
• Document-driven and
• Knowledge-driven

8. DECISION MAKING AS A COMPONENT OF PROBLEM SOLVING
Intelligence
Design
Choice
Implementation
Monitoring
Decision
making
Problem
solving

9. DSS ADVANTAGES
• Time savings
• Cost reduction
• Increase decision maker satisfaction
• Enhance effectiveness

10. DSS DISADVANTAGES
• Transfer of power
• Monetary cost
• Assumption of relevance
• Obscuring responsibility

11. ETL PROCESS
• An ETL process is a method that is used to transfer data from a source table, file,
etc. to a target destination.
 the three steps of the ETL process
Extraction of data
Transformation of data
Loading of data

12. THE ETL PROCESS
Packaged
application
Legacy
system
Other
Internal
applications
LoadCleanseExtract Transform
Transient
data source
Data
Mart
Data
Warehouse