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larming news about major mainframe leg-
acy IT migration failures has featured regu-
larly in the world’smedia recently.Migrating
mission critical applications frommainframe legacy
IT infrastructures is a complex and often risky pro-
cess – in fact it’s often compared to performing a
heart transplant on a runner during a marathon.
The systemmust be functional at all times, while the
level of functionality and service quality after the
migration must be equal to, or better than before.
Enterprises make several common critical mis-
takes when attempting a mainframe migration.
Often, companies simply decide to completely
replace their current system because it does not
meet critical business requirements. However, in-
cremental modernisation is always less risky than a
complete replacement, which will lead to changes in
technology, operations, functionality and user expe-
rience. Plus, there’s no such thing as a project that is
too big to fail. In addition, companies tend to have
unrealistic expectations about migration solutions.
Any solution that changes the basic functionalities
of an IT infrastructure, or requires an enterprise to
change its business processes – such as a complete
system rewrite – will take several years to complete.
Some senior executives fail to evaluate whether they
can afford to wait that long, or guarantee that their
organisation can remain stable during that period.
There are several easy ways, however, to prevent
a mainframe migration nightmare.
uating their existing legacy systemto develop a com-
prehensive business case for migration. They must
also carefully weigh up the benefits and drawbacks
of the available options. These may include migrat-
ing, rewriting or transforming code, rehosting the IT
infrastructure, or deploying a commercial-off-the-
shelf or enterprise resource planning solution. To
ensure they select the most appropriate option, en-
terprises should analyse the costs of each approach
and how it will drive revenue and reduce risk.
Once an enterprise has selected a migration
solution, it should ensure that a comprehensive
plan has been agreed by everyone involved. Strong
organisational commitment is a key factor in com-
pleting a mainframe migration successfully.
Asysco offers turnkey solutions and expertise
for delivering successful, high-quality mainframe
transformation and modernisation projects.
Transformation enables organisations to reduce
costs, increase flexibility, and facilitate streamlined
business process integration.
Since its foundation in 1979, Asysco has per-
formed more than 60 migration projects with a
100% success rate. Our motto – Unlocking Your
Legacy Value – expresses our confidence that leg-
acy transformation projects make sense, that the
risks can be well managed, and that the resulting
business value is outstanding.
Herman Eggink is chief commercial officer at Asysco
Critical mainframe migrations can be risky, but companies can take
several easy steps to guarantee project success
HE RMAN E GG I NK :
A S Y S CO
V I EWPO I NT
“Strong organisational commitment
is a key factor in completing a
mainframe migration successfully”