Computer%20Advice

1
Computer Advice
2
Problem

• Computer Hardware Purchasing Advice
• What HW
• Model HW
• Cost

AMD Athlon XP AMD Athlon MP
AMD Duron Intel Celeron
Intel Pentium 4 Intel P4 Xeon
3
JESS

• Written in Java
• Free for academic and government use
• Advantages
• Syntax based on CLIPS
• Expanded functionality
• Easy to interface
• Good documentation

4
ComputerAdvice System

• 2 Java server applications 1 client applet
• JESS runs knowledge script
• CA web-server interface application
• Connects to JESS via socket
• Waits for web client connection
• CA client connects to web-server. Handles user
  input and output

5
ComputerAdvice System
6
Inputs

• Computer Usage Questions
• Get main uses of the PC
• y or n answer
• Computer budget
• Integer

7
Outputs

• Application recommendations
• Hardware device
• Need std, med, max
• Recommended build sheet
• List of hardware
• Price
• Description
• Total system cost

8
Procedure

• 1. Users applications are inputted
• 2. Hardware characterized
• 3. Eliminate redundancies
• 4. Users budget is inputted
• 5. JESS purchases hardware
• 6. Output recommended system

9
Verification

• Verification - Required
• CA application stable
• Follows procedure exactly
• Completes all steps
• Verification Optional
• CA web-server stable
• CA web-server doesnt hang

10
Validation

• Evaluation
• Output must be reasonable
• Expert will validate
• System incomplete
• More rules to add
• More expert consultation
• No validation present

11
Lessons Learned

• Java JRE hasnt behaved like it is platform
  independent.
• Using 4 computers with 4 OSs has been really
  helpful
• JESS was a great expert system shell

12
Summary

• System design and process complete
• Need to add more rules
• Need to update hardware database
• Web application seems to work
• Its been up for 3-4 days
• Web application will be very accessible

13
Demonstration

• Online Demonstration
• www.MWales.net

14
Connect to server
15
Application Questions
16
Hardware Characterization
17
System Budget
18
Recommendation