Following
are a few client case studies that will provide you an overview
of our work structure and capabilities:
Application
Migration from INGRES, FORTRAN to SQL-SERVER, VC++, CORBA
.
Migration
project for a large automobile ancillary manufacturer in GERMANY
required migration of their legacy systems running on VMS
from FORTRAN, INGRES and character mode interface to the modern
platforms and technologies.
These
systems calculate various parameters for the auto parts manufactured
and create drawings of the same. These are complex, computation
intensive and very old workhorse system.
These
systems are migrated to WINDOWS NT with GUI front end written
in VC++. Wrapper classes are developed for the FORTRAN code
allowing it to be called through CORBA ORB. The INGRES database
is replaced by SQL-SERVER7.
As
far as possible the look and feel of the user interfaces is
kept as before. Thus making the technology change transparent
to the end users. The machine part drawings are displayed
using the 'GINO' library. The machine part calculation is
being done in Fortran.
By
encapsulating the time tested and working FORTRAN code with
C++ wrapper classes the migration objective is achieved in
a very short time and the testing efforts dramatically reduced.
Using CORBA makes it possible to replace each FORTRAN module
with equivalent C++ implementation in future if need be. Database
objects such as tables and views required changes in the data
types to match INGRS data types to SQL-SERVER data types.
Few TRANSACT-SQL procedures were required for implementing
the exact semantics of certain INGRES behavior.
Source
platform
VMS, FORTRAN, ABF, INGRES
Target
Platform
WINDOWS NT 4.0, VC++, SQL-SERVER 7, FORTRAN (LEHAY), CORBA
ORB
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