E:\legacy systems3
-
Upload
guest8855b3ca -
Category
Documents
-
view
190 -
download
0
description
Transcript of E:\legacy systems3
![Page 1: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/1.jpg)
Legacy Systems
A Necessary Evil
![Page 2: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/2.jpg)
General Info
• NPOs in general have little to no tech budget.• Government is the same.• Specialized Operations
![Page 3: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/3.jpg)
GR Water
• LMFP• CB• Boosters• Field Ops• Meters• Customer Service• Take a tour of water:
http://www.grcity.us/departments/water/CD/water-system-tap-back-1.html
![Page 4: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/4.jpg)
Keeping the Legacy Alive
• Cost• Resistance to Change• Fear of future problems
![Page 5: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/5.jpg)
![Page 6: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/6.jpg)
How to Combat Problems
• Cost comparison • Integration over time, bribery• Available support
– http://antfarm/department.pl?dept=DOIT– Manufacturer resources
• Lessons Learned• BPI• Advantages of Replacement
![Page 7: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/7.jpg)
Recommended Actions By Category
CM9% Cost
3%
Documentation14%
Personnel11%
Requirements7%System Design
16%
SE14%
System Upgrades
4%
Test8%
Vendor Product
14%
![Page 8: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/8.jpg)
Coldbrook Control Center
![Page 9: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/9.jpg)
The OLD system
![Page 10: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/10.jpg)
RTUs
old newer
![Page 11: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/11.jpg)
ScadaVision and Fix32
![Page 12: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/12.jpg)
Sample Scada Booster Display
![Page 13: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/13.jpg)
Training and Technology Legacy Costs
•Is training included in bid?•Who corrects mistakes?•Who checks the contractor’s work?•Voter/citizen scrutiny and transparency in government spending•The Future of SCADA
•http://www.youtube.com/watch?v=ca0hyf6tM2U
![Page 14: E:\legacy systems3](https://reader035.fdocuments.us/reader035/viewer/2022062707/5580c11ed8b42a8e558b45a0/html5/thumbnails/14.jpg)
SOURCES
1. Chiasson, Michel. “Should Legacy Systems Stay or Should They Go?” National Underwriter. Life and Health. Sep 4, 2006. ABI/INFORM global pg. 50.2. Clabaugh, Gavin. Class interview/presentation 3/15/2010.Kulonda, Dennis, University of Central Florida, Mohammed Arif, Carthage College, & Captain Jennifer Luce, United States Air Force. Journal of Knowledge Management Practice, December 2003 Legacy Systems: Must History Repeat Itself? http://www.tlainc.com/articl59.htm3. Kavanagh, John. “Moving Ahead with the Best of the Old.” Computer Weekly. Sutton: Apr 12, 2005. pg 36-7.4. McIntyre, Ken. Electrician II for City of Grand Rapids Water Systems. Multiple interviews and discussions during the semester.5.Robertson, Paul. “Integrating Legacy Systems with Modern Corporate Applications.” Communications of the ACM. May 1197. Vol. 40, No. 5. pg 39.6. Schach, S.R., (1990), “Software Engineering”, Irwin, Homewood, IL.