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Topic : New technologies in mainframes
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Mainframes

 

Strategies to Modernize Mainframe Application

Started by : Manas Jain, Project Lead, Infosys   12 03 2008 11:59:00 +0000
Industry : IT ServicesFunctional Area : New Technologies(Technology)
Keywords : Business Innovation Application Strategies Mainframe Mainframe Software Computer Mainframe Mainframe Application Mainframe System Modernize
Activity:  24 views;  last activity : 07 06 2010 20:18:09 +0000

Mainframe applications have been criticized for spiraling maintenance costs, the result of a vicious circle of lack of documentation and lack of ability to upgrade, leading to higher costs of maintenance or upgrade right now. At the same time, most enterprises recognize that their existing mainframe applications are business-critical but old, and therefore cannot be leveraged as much as the business would like. Thus, these applications need to be modernized. so, How to do it........
 
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1 Application Portfolio Rationalization
2 Upgrade
3 Migrate
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Application Portfolio Rationalization

idea posted by RanjithKumar Panjabikesan, PMP Client Servicing/Account Manager, TBD

IT Application Portfolio Management helps organizations understand the cost (in budget and resource  to support applications and which applications no longer support strategic objectives.

In a Nut shell, IT Application Portfolio Management deals with the following

 1. Describe Current Application Portfolios  in terms of  Functionality, Deployment, Platform,  Responsible etc

2.  Evaluate Current Applications in terms of  Functionally fit, Technically Fit, Operating costs etc

3.  Understand the Total Cost of Ownership (TCO) of applications

4.  Decide on Optimization / Rationalization  Strategies  

Application Portfolio Optimization Strategies

S.No

Strategy

Description

1

Retain

Continue operations and maintenance activities  

2

Re-Platform

Port an application from one technical platform to another

3

Replace

To change the existing application by decommissioning it and replacing
With a COTS (Commercial off the shelf) products/Package.

4

Consolidate

Consolidate with Other applications

5

Retire

To Sunset an application (Decommission)

6

Remediate

To Improve code quality, developer productivity and overall reliability of applications

7

Legacy Modernization

Transformation of Business Processes with Latest Technology/Business Solutions ex. SOA (Service Oriented Architecture) Business Process Modelling (BPM) etc.

8

Technical Extension

Technical Enhancement

9

Functional Extension

Functional Enhancement

5. Determine which applications should be Outsourced or Retired 

6.  Determine future application needs  based on future processes

7. Manage migration from current state to future state

 

Why is APM Important ?

The Key Objective of APM is to Align IT spending with BusinessStrategies and Priorities.  

APM helps decide Optimization strategies for applications in the application Portfolio

APM helps  ongoing and long term Management of 

1.  Benefits/Cost

2.  Risks

3.  Investment Planning

4.  Fiscal Liability

5.   Disaster Recovery and Business Continuity 
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Upgrade

idea posted by Manas Jain Project Lead, Infosys
I think we have to upgrade in place where the program and its data are kept on the mainframe, and the developer applies mainframe tools that integrate the new technologies with the mainframe application.
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Migrate

idea posted by Sujit Nimje Project Lead, HP
I could say that the program’s source or binary code just want to move another platform with little or no change, and the developer must apply tools on the new platform to add the new technologies. Note that the application’s data may be moved to the new platform as well, or may remain on the mainframe.
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