When and where to migrate your Legacy System?

Legacy applications and systems are usually the most useful software systems many of the large companies have. During the last twenty, thirty or more years they have actually been used significantly and they have actually made sure that  the flow if information is smooth and everything operational is fully performing. They were also being used to integrate with other applications and also implemented the methods and design of the organisation. The term ‘legacy’ does not often describe the performance these applications provide, but tells us that the constantly growing old softwares and instruments that is costly to maintain and also inhibits adjustment. Dividing the inherent worth of an application from its main responsibility is the primary task associated with legacy migration.

Benefits of migration from Legacy Systems

Migrating an application to a contemporary hardware and software infrastructure has numerous benefits connected with it:

  • A migrated system is more amenable to transform, improving the agility of the organisation.
  • Software licensing costs are substantially decreased.
  • Hardware and equipment expenses are reduced.
  • Integration with other systems becomes less costly and also much easier.
  • Application run-time performance is boosted – which can deliver large performance benefits.
  • Accessibility to more productive development tools.
  • Accessibility to a larger skills pool.


Migration Options

If you have analyzed that your legacy application is too expensive and also inflexible, you have several options available to sort it out – legacy migration being one of them. All alternatives have their associated advantages, costs and threats, however in several circumstances migration will be the lowest risky, and least expensive alternative. The main options are:

  1. Rewriting completely on a new hardware and software system. This is most probably the most risky choice in a lot of cases. It requires a totally new design and extensive coding, which by its nature would not be easy and in most cases troublesome, yet many organisation with a new set of technologies which they were not in their set of expertise, they start developing it. It doubles the risk as they have to learn first and then perform without experience. Rewriting a software is not a small task, the organisation can estimate  a project of this nature to take at least 3 years and often longer. Meanwhile the already existing systems have to be maintained properly and should be modified as per business needs, its also a costly task that the company has to perform in parallel. These modifications have to be replicated in the new systems and also developers usually find themselves in altering targets that is disturbing for them as well.
  2. Buying a new solution can also be a good option for some applications. Somehow this is riskier compared to the rewriting option. While the technical risks are lesser but the functional side effects are higher. The organisation is presented with an entirely new method of working, and not up until all the items are in place and also the application is used will management know whether the solution provides an appropriate choice. Functional disruption is consistently experienced when completely new applications are carried out as well as in some cases this could come to be chronic. There are numerous examples of these applications bringing an organization to its knees – as well as in unusual situations inducing it to fall short.
  3. Legacy migration is much faster than a rewrite and also the functional side effects are low – since the performance and functionality is currently acquainted. It will certainly be the most affordable cost option and also depending on the new software as well as equipment system, may offer the most affordable ongoing operating expenses. If managers are unhappy with the functionality a legacy application system providers then legacy migration is possibly less appealing.


The technologies to perform legacy migration have increased considerably throughout the last few years. Now a days, most of these procedures are automated and sophisticated, and it makes the migration smooth and error free. Also the team of developers can deliver the resulting application much more swiftly and also with fewer troubles. We can estimate this development in migration technologies to continue as the need for legacy migration increases. It is our point of view that legacy migration is a less risky, cost effective, quick track to move applications from old frameworks that should be preferred to more radical solutions and systems in many instances.

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