CFBS Implementations eBook - Flipbook - Page 7
Phased Go-Live
vs Big Bang
07
DIVIDE IMPLEMENTATION BETWEEN
SPECIFIC BUSINESS AREAS
GO-LIVE WITH EVERYTHING
ON DAY 1
During a phased implementation, you implement
and go-live with part of the system initially and
then the remainder of the system at a later date.
This approach is beneficial when you have
pressing issues that need to be addressed by the
new system.
With the Big Bang approach, all the functionality of
the new system is implemented at one time. A
significantly greater amount of planning and
cutover preparation is required. This approach
places more demand on the customer’s internal
resources.
To some degree, the majority of implementations
fall into the phased approach strategy. For
example, a manufacturing implementation may
implement master planning after they gain a better
understanding of the system.
One or more mock go-lives or dress rehearsals
may be required to ensure a smooth cut-over. If
the implementation is simple and the data
migration straight forward, then mock go-live may
not be necessary. However, if the data migration is
complex it is imperative to test the entire process
at least one time before going live.
