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Recent Essays

"It's Not Magic," an essay on the design of automated modernization projects.

Abstract: When there is residual value in a legacy application, an automated modernization project can extract and use that value in a highly cost/effective manner. Of course, in some cases this is futile, but in many if not most projects it has significant technical and financial merit. There are 3 important technical strategies....


Recent Publications

"From Legacy to BPM", Cutter Consortium Enterprise Architecture Service Executive Update, Volume 8, number 21-22, November, 2005.  Complementary copy available after registration from:  http://www.cutter.com/offers/legacyBPM.html

Abstract: Replacements for existing systems fail or experience substantial cost/delivery time overruns because of a failure to appreciate the formal complexity of the problem, and therefore fail to derive practical risk mitigation procedures. Most attempts to address this fundamental failure fall into the category of doing the same thing again, only more so....

"Software Archeology, Trapped by Stranded Investments", Cutter Consortium Enterprise Architecture Service Executive Update, Volume 8, number 20, October, 2005.  Text as submitted for publication.


Recent Conference Presentations

"Guaranteed Success in Legacy Modernization",  Transformation and Innovation 2007 Conference, Washington, D.C., May 21-24, 2007.

 "From Legacy to BPM",  Transformation and Innovation 2006 Conference, Washington, D.C., May 22-24, 2006. (Note: the presentation was loosely based on the article of the same title, but is substantially different.  See notes pages for content summary.)

 


Other Sources

Capers Jones, "Software Project Management Practices: Failure Versus Success," Crosstalk, October, 2004, http://www.stsc.hill.af.mil/crosstalk/2004/10/0410Jones.html. An exceptional resource on the probability of success, failure and cost overruns on major projects, based on a review of 250 major projects.

Mark Haynie, "Mainframe Migration: Performance of Enterprise Server™ for Windows®," September, 2004, http://www.microfocus.com/Resources/Whitepapers/?stp=lst&stext=ibm, document wp-mm-windows2005_tcm21-5274.pdf. This document deserves a careful read for the methodology and analysis, but the conclusion is pretty clear:

"This table indicates that an eight processor configuration of the Unisys ES7000 (up to a 32-CPU box) is measured at 1347 mainframe MIPS and can handle the workload up to that level. So, the implication is that an existing mainframe online transaction processing workload under CICS up to 1347 MIPS it could run on Micro Focus Enterprise Server with MTO environment in this hardware configuration." (page 11)

Note that the author confirmed that the ES7000 configuration was 8 2.8 GHz CPUs via private communication.

Mark Haynie, "Mainframe Migration: Performance of Micro Focus Server for Linux," September, 2004, http://www.microfocus.com/Resources/Whitepapers/?stp=lst&stext=ibm, document  wp-mm-Linux07_tcm21-5273.pdf. This document also deserves a careful read, but gives an even better result with Linux:

"This table indicates that an eight [sic] processor configuration of the Dell PowerEdge 2650 (2-CPU Pentium 4, 2.8GHz, 2GB RAM) is measured at 875 mainframe MIPS and can handle the workload up to that level. So, the implication is that an existing mainframe online transaction processing workload under CICS up to 875 MIPS it could run on a Micro Focus Server environment in this hardware configuration." (page 10, note typographical error)

Warren S. Reid, "CPR (Cooperative Project Recovery) - Reviving the Drowning Large-Scale IT Project," August, 2007, http://www.hgexperts.com/hg/legalarticle-cooperative-project-recovery.asp. 13 step model that focuses on the actions that must be taken to turn around, overcome, and compensate for deficiencies in project management, methodology, technology, and people in live, ongoing projects.

Warren S. Reid, "Why Do Systems & Software Projects Fail?," August, 2007, http://www.hgexperts.com/hg/legalarticle-software-projects.asp.  In this new millennium, it is still true that approximately 29% of all large-scale systems projects are successful, 53% are challenged  (with average overruns of 84% in time, 56% in dollars and only providing 67% of the required functionality), and 18% are scrapped and written off altogether.  A brief discussion of the communication failures that create this result are presented both humorously and very effectively in a "he said/she said" format.
 


Don Estes CV

Background Summary


In Memoriam - Achi Racov

Achi was my friend and my mentor from when I met him in 1982 until his untimely death in 2002. I learned more from him about computer systems and particularly in their transformation than I learned in all of my formal education put together. I am glad to say that a memorial fund has been created in his name.  A man of such towering intellect and personal integrity should not pass easily from the memory of those who remain. I miss him.