legacy system

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Related to Legacy systems: Legacy software, Legacy technology

legacy system

An obsolete computer system centred around a mainframe platform which is not worth the cost of upgrading or salvaging. As enterprise modernises hardware, IT departments may be forced to integrate legacy system data, which can be logistically difficult, since obsolete software was often custom written by people who left the institution.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

legacy system

(leg′ă-sē) [L. legatia, office of deputy]
An old, slow, or out-of date computer system.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
"Government entities of all sizes face a common challenge: modernising old-line, inefficient, legacy systems to better serve constituents, government employees, and other stakeholders," said Andy Pemberton, vice president of solution architecture with OutSystems.
It's not a very difficult task because of the underlying modern architecture, but outdated legacy system architecture makes it nearly impossible.
In order for companies to become IoT ready, they must find a way to unlock the data within their legacy systems whilst upgrading to more modern digital platforms that support the constant stream of real-time data that IoT-connected devices generate.
At their core, they're the same legacy systems designed to be deployed on customers' premises to handle financial accounting--and not much more.
The report is titled, "Legacy Systems: The inconvenient truth and the cost of doing nothing." It is based on interviews with over 500 buy-side institutions across the globe and research from more than 100 industry sources, and highlights the serious consequences of relying on legacy systems.
One potential solution to the issues of cost overruns and prolonged acquisition timeframes is to reuse DoD legacy systems. While this may seem like an ideal solution due to the legacy system being complete, tested and even operational, reusing legacy systems can lead to unforeseen technical complications and financially prohibitive difficulties when integrating with newer technologies.
In 2010, there report adds, the goal among life/health IT departments was to replace legacy systems where there was a strong business case (49%), and replace on a case-by-case basis (26%).
To help companies avoid the risk and expense of shifting all its data from a rigid and bulky legacy information system into a modern one, computer scientists and engineers and business researchers explain how to reengineer business processes and legacy systems into more flexible systems capable of supporting modern trends such as enterprise resource planning, supply chain management systems, and electronic commerce.
DOD is in the process of implementing modern multifunction enterprise resource planning (ERP) systems to replace many of its outdated legacy systems. The ERPs are intended to perform business-related tasks such as general ledger accounting and supply chain management.
As for legacy systems, most agreed they will not be eradicated from the insurance industry over the next five years, but one CIO made an interesting point: Insurers have avoided the replacement issue by adding on to their legacy systems in an attempt to modernize the older tools.
Human service agencies spend valuable time and money trying to squeeze what they can out of legacy systems that are, in fact, putting the squeeze on already scarce taxpayer dollars.