Jasour Obeidat

Dr. Hussain Owaied

January 2013

Web Based Decision Support Systems

DSS(40201742)

Outline

• Tasks in Conventional Decision Support Systems.• Why Internet and World Wide Web.• Web-Based Decision Support System DSS.• Decision Technology As A Service.• Recent Research in Web-Based DSS.• Benefits of Web-Based DSS.• Challenges Faces Web-Based DSS.• References

Jasour A.Obeidat – Middle East University, Jan.2013

Conventional Decision Support System (DSS)

• Current DSS facilitate a wide variety of decision tasks:

Information Gathering and Analysis

Model Building

Sensitivity Analysis

Alternative Evaluation

Decision Implementation

Jasour A.Obeidat – Middle East University, Jan.2013

Why Internet & World Wide Web?

• The global internet is now enabling technologies for delivering computerized decision support systems.

• There are many on-going efforts to develop and implement Web-Based DSS in various areas such as: Health Care. Private Companies. Governments. Education.

Jasour A.Obeidat – Middle East University, Jan.2013

Web-based Decision Support System

• Delivering decision support information or tool to manager or business analyst.

• The computer that is hosting DSS application is linked to user’s computer via computer networks with TCP/IP.

Web-based Decision Support System

• Main Terms:

Web-Based

The entire application is implemented using web technologies.

Web-Enabled

key part of an application like a database remain on a legacy system, but the application can be accessed from a web-based component and displayed in a browser.

Jasour A.Obeidat – Middle East University, Jan.2013

Web-based Decision Support System

• Approaches used to deliver Web-Based DSS:

Data Driven Approach

Which helps managers to {Organize, Retrieve, Analysis} large volume of relevant data using database and OLAP techniques.

Model Driven Approach

Formal representations of decision model and provide analytical support using the tools of decisions such as:

- Decision Analysis.- Decision Simulation.- Decision Statistics.

Jasour A.Obeidat – Middle East University, Jan.2013

Decision Technology As A Service

• Web technologies can be classified as:

Server Side Computations Client Side Computations

Facilitate platform independent and universal access to decision support

application

Relevant TechnologiesJAVA Application

Server Side Scripting Lang.PHP & JAVA Server Pages

Allow more capabilities to be embedded in the user

interface

Relevant TechnologiesJAVA Applets

Active X ControlsBrowser Plug-ins

Jasour A.Obeidat – Middle East University, Jan.2013

Recent Research in Web-based DSS

• Researches in this area concentrate on two point of views:

Architecture & Technologies

Application & Implementation

Jasour A.Obeidat – Middle East University, Jan.2013

Recent Research in Web-based DSS- Architecture & Technologies (1)

DSS meta data model for distributing decision support system on the web.

Idea & Concentration

The ability to find appropriate resources on the web and determine their situation ability.

Meta data helps end users to locate and understand a specific DSS capability on the web.

EXPLANATION

Jasour A.Obeidat – Middle East University, Jan.2013

Recent Research in Web-based DSS- Architecture & Technologies (2)

.

Investigate customers satisfaction with web-based decision support system

Idea & Concentration

Proposing three independent variables:- System Quality {Ease of use, convenience of access}.- Information Quality {Relevance, Accuracy,

Completeness, Timeliness}. - Information Presentation.

As a results: System quality and information quality are correlated to end users satisfaction. Information representation : did not have a statistically significant impact on an end users.

EXPLANATION

Jasour A.Obeidat – Middle East University, Jan.2013

Recent Research in Web-based DSS- Application and Implementation(1)

.

Web Based DSS for Hospital Management.

Application

It is a customer relationship management system for physician relationship management , called physician profiling system

Implementation

Jasour A.Obeidat – Middle East University, Jan.2013

Recent Research in Web-based DSS- Application and Implementation(2)

.

Web-based DSS that used a model based on fuzzy set theory to perform risk analysis for e-commerce development

Application

In Prototype: - Web browser : Used as Interface component. - Database / DSS Models : Hosted at Servers. Prototype Usage: - Helps managers to { identify , Analyze , Prioritize} risks.

Implementation

Jasour A.Obeidat – Middle East University, Jan.2013

Recent Research in Web-based DSS- Application and Implementation(3)

.

Web-based DSS framework for portfolio selection.

Application

Uses Online Analytical Processing OLAP and Parallel Virtual Machine PVM. In Prototype:-Enables multiple computers to handle a large-scale decision support problems . Performance: IMPROVED !!!- By using multiple user interfaces (i.e. Web browser) accessing database hosted over servers and analyzed based on DSS models hosted too.

Implementation

Jasour A.Obeidat – Middle East University, Jan.2013

Benefits of Web-based DSS

The benefits of building web-based decision support system are :

Increasing the availability. Growing sophistication of web technologies. Providing remote controlling. Distributed computations. Exchange of complex multimedia information.

Challenges faces Web-based DSS

Technological Challenges :

The basic web architectural model designed for random jumps in hyperspace, without providing a persistent connection or state. But DSS generally needs repeated interactions with a model and exchange a large amount of data speared across interactions.

Economical Challenges:

To offer decision support as a service, providers must experiment the new payments methods.

Social and behavioral challenge:

The type of users by applying Web-based DSS casual users , where , the previous users were professionals.

Jasour A.Obeidat – Middle East University, Jan.2013

Thank You

Questions ???

Jasour A.Obeidat – Middle East University, Jan.2013

References

The soft copy will be available at www.jasourobeidat.somee.com

[1] Progress in Web-Based decision support technologies, Hemant K.Bhagava, Daniel J.Power, Daewon Sun, University of California, United States, Augest 2007.

[2] Dr. Dan Power official website, www.dssresources.com/subscriber/password/dssbookhypertext ,2002

Jasour A.Obeidat – Middle East University, Jan.2013