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Legacy Modernization 20130623 long

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by

steve taite

on 24 June 2013

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Transcript of Legacy Modernization 20130623 long


Imagine a boring world where everything
is

primitive.
Where graphics don't exist.
Wouldn't it be great
if we could change all that?
But what will it cost?
A
h,
well That's where
we
come into the picture
And how much effort
is needed?
Modernization is an
ongoing process

How should you leverage new technology to benefit existing systems and source?
"
A Mainframe system should be replaced
every
10
to
15
years
"
Remember that claim?
But would you apply such a theory to other fields?
How about rebuilding a city from
scratch!
So is it
really
necessary to
rewrite computer systems?
But there are
pressures for change

changing regulatory demands
Time to Market
Cost

Risk
Efficiency
System complexity
M&A
What drives modernization?
Skills
Possible Solutions
MOST/OpenLegacy
supported solutions
Not just one solution!
Is system meeting current needs?
what does it cost to run the system?
can system be replaced by off the shelf software?
Is system barely used & maintained or is it still very alive and growing?
Is the system unique to company's needs?
MF
Web UI
Smartphone
Tablet
Add exciting new functionality.
Enhance business logic on the PC/mobile side without having to touch the mainframe applications
Enhance connectivity
I mean the
WHOLE
city!!!
Maybe you know
just such a world
Say goodbye
to the old world
What you need
to ask yourselves

We offer several alternatives
Which option is right for you?
Automatic
conversion
Rehosting
Legacy
Modernization
MOST/OpenLegacy Solutions
MOST's Services
(with/without UI change)
Migration Flow
Testing Methodology
3 Tier Infrastructure
Legacy
Modernization
with
Cities are modernized -
not rebuilt from scratch
Enhance Connectivity
ADABAS
NATURAL

DB2

COBOL

JCL

CICS
ADABAS FOR UNIX/Windows
Natural for UNIX/Windows

DB2

MicroFocus COBOL


Microfocus Enterprise
Continue to maintain mainframe system
while implementing
Open Systems GUI interface
that is transparent to the mainframe
Low costs
short implementation duration
minimum testing
Continue to support mainframe
and pay for mainframe licenses
Solution Details
SOLUTION
ADVANTAGES
DISADVANTAGES
large existing mainframe team
little open systems experience
don’t want to risk or pay the high price of moving business logic to open systems
limited budget
move to GUI in minimum time
looking for temporary GUI solution to use until the system is converted
SUITABILITY
Mainframe components are re-hosted to
compatible components on
open systems
(ADABAS to ADABAS,
Natural to Natural,
COBOL to MicroFocus COBOL)
Necessity to continue paying for SAG licenses
Future development is done on mainframe type code which limits open systems development and implementation of widgets etc.
a)Has little remaining mainframe professionals on staff and wants to avoid recruiting future staff necessary to continue and maintain the mainframe.

b)Has moved to open system architecture, has a number of mainframe systems that are not part of core business and their re-hosting will allow him to retire the mainframe and reduce costs
Solution Details
Existing code is moved to open systems with minimum changes.
No necessity to retrain / replace staff because of change of computer languages.
Business logic remains unchanged allowing heavy reduction of testing.
SOLUTION
ADVANTAGES
DISADVANTAGES
SUITABILITY
Mainframe
Open
Conversion Example
Code Functionality Extrapolation
Database Migration
SOLUTION
ADVANTAGES
DISADVANTAGES
SUITABILITY
Solution Details
Mainframe components are automatically converted to components on open systems (Oracle/ openDB2/SQL, MicroFocus COBOL, Java, C#)
Existing code, databases and data are converted automatically to computer languages and databases on open systems with minimum changes.
Client can retire mainframe and reduce costs
Business logic remains unchanged.
Full mainframe functionality is migrated automatically to open system.
Resulting code is similar in structure to mainframe and lacks advantages of full object oriented programming.
Need to retire the MF and remove dependency on SAG products.Customer
Already moved core systems to open system or plans to develop future projects on open systems
Looking for a solution that is relatively quick (1.5-2 year project) and less costly than a system rewrite
Mainframe Modernization
Bringing mainframe screens into the

21st Century
I need to enhance the
E-Government Portal
what would you
like to add?
Homeland security
Traffic Violations
Tax revenue
But these are
mainframe systems.
There are big
integration issues
And I need smartphone
and tablet access
Let
me
show you
how it's done
Downsizing
Architecture
Full transcript