| The client is a
Fortune 25 financial conglomerate with an
annual revenue of over US $125 bn. The client
serves the complex needs of its clients
(including corporations, governments, institutional
investors, and high net worth individuals)
through a sophisticated and integrated range
of advisory, financing, trading, investment,
and related capabilities. |
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The client uses
a Check Research & Adjustments (CR&A)
application running on an IBM mainframe
Pega Systems environment. The application
had been developed using PegaViewAce as
the front end and IDE, and is primarily
used by the client employees to log customer
queries and track/resolve them using Pega
Rules & Workflow. The client wanted
to re-host CR&A from the IBM mainframe
to Unix. Re-hosting included:
- Transaction and history data migration
from mainframe to Unix
- Pega workflow rule base migration
from mainframe to Unix
- Interface modification for functional
availability in Unix
- Check Archive changes for functional
availability in Unix
- PegaIndex data access
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The various work
streams for re-hosting were as follows:
- Workflow rule base - These rules were
stored in VSAM files on the mainframe
and were migrated to Unix, where they
were kept in an Oracle database. The
storage was done in Pega proprietary
format and Pega supplied tools were
used for the migration.
- Interfaces - Various interfaces were
modified to enable functionality in
a Unix environment, leveraging mainframe-based
processing wherever possible. Cognizant
took end-to-end responsibility for a
majority of the interfaces. Cognizant
worked extensively on these interfaces
using techniques, such as socket programming,
send mail, OCI, PL/SQL reporting, and
Pega utilities, such as Case*Loader,
TGUCONV, RGUOCNV, and Report Writer.
- Transactional and history data - Transactional
and history data was stored in Pega
proprietary format in VSAM files on
the mainframe. This data was migrated
to Oracle on a Sub-Solaris Unix platform
using Pega supplied tools. Cognizant
participated in the validation exercise
for this activity.
- Special modifications - Modifications
to some special screens and workflow
were needed as part of re-hosting. The
client carried out the modifications
with Cognizant support. For PegaIndex
related access, an off-the-shelf Pega
utility called Archive Attach was used.
Cognizant’s additional responsibilities
during this project included:
- Architecture, design and specification
documentation for all modules
- Socket prototyping
- Performance tuning of certain critical
processes, such as OS45
- Modifications and tuning of a centralized
error reporting mechanism
- Complete project management and tracking
Benefits of the solution included:
- Business continuity by working around
a "no support" situation
for the mainframe-based Pega application
- Reduced cost of storage and processing
after moving major storage and processing
from mainframe to Unix
- Consistent error reporting mechanism
for most interfaces
- Reduced maintenance and production
support costs
- Improved production support turnaround
time
- Wb-enabling of the application
- Application documentation and component
reuse
- Enhanced application functionality
over an elongated timeframe
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“Cognizant rated to have best delivery capability among offshore players"
Morgan Stanley,
CIO survey |
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