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Harvey Nash Group

Rewrite or rebuild? 5 legacy system upgrade considerations

To rewrite or not to rewrite the legacy system. It is a perennial question for IT organisations and one that weighs heavy with IT budget, talent and operational concerns. Every week I come in contact with CIOs and CTOs trying to determine the best way to upgrade an ageing but mission-critical system or application. After years of helping businesses consider and address their upgrade needs, I have determined there are five main factors IT leaders need to carefully consider when determining whether they are going to rewrite what they have or start fresh with a rebuild.


Harvey Nash (LON:HVN) Since 1988, we’ve supported many of the world’s top organisations to recruit, source and manage the highly-skilled talent they need to succeed in an increasingly competitive world. Proud to be different, our reputation has been built on our fair, open and flexible approach to doing business.

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Disclaimer: Statements in this article should not be considered investment advice, which is best sought directly from a qualified professional.