SoftwareMining
Simple, Safe & Effective COBOL to Java / C#


Case Study: Tandem COBOL to Java



COBOL To Java - Project Review Rating: 5 out of 5
Excellent product. Could not have completed this project without it. We have had zero production system outages caused by the new system and there have been no defects found. This was a huge effort and successful because of SoftwareMining.
Mr. A.G.
Enterprise Architect - TransUnion Global Solutions

TransUnion Credit Processing Applications

TransUnions Credit Reference Processing and Credit Report Processing was implemented in Tandem COBOL in 1990's. The applications comprised of over 200 programs, half online and half batch. The hardware had reached end of life, a strategic decision was made to convert the COBOL application to java / J2EE, rather than port and upgrade.
On completion of the project, TransUnion's Technical lead on project was kind enough to supply us with the following information.

Questions Answers
Did you find many compilation errors? a lot less than we planned for. The initial 2 months of Cobol to Java conversion phase shook out many issues. Almost no new Cobol to Java conversion issues occurred after that phase.
Were there many Runtime differences between original & new system (1 in 10 programs? Every other program, or ) Some cases the translation fixed an existing defect in the legacy but caused a runtime difference. Other cases were due to variance in the data formats. For example padding strings. The more complicated differences were in the DB Query results. The translation of these was not very good due to neither Non-stop SQL nor Informix were directly supported by the Conversion Tool.
How did you find the performance of new system? The new system was about the same. In some cases a little worse and in others a little better.
How many application servers used for the new application? & what is the (ball-park) specification of the machines 2 Application Servers 1 DB server. Each with 4 x 4 Core (16 core) 64GB
Is there any cost benefits resulting from migration? Does having the application in new language open the door to any new technology areas which was not available in java? Too many to list. The main points are: There are more in-country resources available for support. Hardware & licensing model much cheaper. Other internally developed platforms will integrate
What is the experience the end users have they noticed? Are they pleased? The end users have not noticed at all. We transitioned them rather than "Big Bang" over 6 months. As we did this there were zero support calls. ... However it was fantastic that the customers did not notice any changes.
Any other comments? Excellent product. Could not have completed this project without it. So far we have had zero production system outages caused by the new system and there have been no defects found. This was a huge effort and successful because of SoftwareMining.


                       



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