Because legacy apps have various factors dependent on their platform, many are not portable to the Cloud easily.
Methodologies are thus needed to prepare well for modernization.
In government IT systems, for example, older systems account for more than half of the IT expenditures and cost literally billions for maintenance.
This is money that may keep some IT officers in government sectors from investing in all that Cloud has to offer, Neil McEvoy writes for Cloud Best Practices Network.
The UK’s government pioneered some prominent projects including voter registration by creating custom software, and has a robust IT staff to do such overhauls. But estimates are that legacy applications still are overwhelmingly primary in terms of the overall system.
The Canadian government’s office of audits also states that legacy applications are an integral part of the network, and has veered away from modernization generally.
But modernization can deliver major benefits such as:
- Untangling and clarifying complexities of legacy apps: Mapping existing architectures and how well they serve or don’t serve the demands of the business is valuable, and developers who don’t know the legacy system are able to work on the goals.
- A custom modernization can actually extend the life of a legacy app.
- Applications can be moved to Web enabled.
- More modern software usually can be linked to more innovation.
Modernization would enable government agencies to get rid of obsolete technologies, which are a huge unnecessary cost, among other benefits.
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