This is term used to describe the "old" computer system that College replaced. Often referred to as "PDS".
A customer's existing system, often a database system.
An existing or inherited system used to run significant business functions that will be used as the base for conversion to or integration with a new system. Legacy systems are typically replaced due to technical or functional obsolescence, or because the organization owning the system has been acquired.
An older computer system such as a mainframe or minicomputer. It may also refer to only the software.
An older computer system or application program that an agency continues to use. Since many legacy systems cannot meet the changing business processes of organizations, they present a significant challenge for data integration.
Those systems in existence and either deployed or under development at the start of a modernization program. All legacy systems will be affected by modernization to a greater or lesser extent. Some systems will become transition systems before they are retired. Other systems will simply be retired as their functions are assumed by modernization systems. Still others will be abandoned when they become obsolete. [Treasury Enterprise Architecture Framework
Any existing production or operational system. Legacy systems often provide the source data for the data warehouse. See Operational Systems
an outdated system that has yet to be reimplemented using current technologies
a pre-existing system that must either be replaced or accommodated by a new system
a process automation system that entered service sometime in the past
a socio-technical system containing legacy software
a system which was developed sometime in the past and which is critical to the business in which the system operates
A legacy system is a hardware and software system which uses technologies which are 'old' in comparison with today's technology. Typically, legacy systems use character terminals (although many have been made to look smarter by enabling access through a Graphical User Interface), and process data through a proprietary database etc.
An information system that is outdated yet which still provides useful service (e.g., punch card system).
An older computer system or program that is still valuable to the user, but may not be compatible with newer systems.
An established computer system that is currently operational and supports existing business functionality.
A mainframe or minicomputer information system that has been in existence for a long time.
a term in use today when referring to entrenched computer systems that were installed years ago that are typically too costly to replace; this term is most often used when referring to mainframe computer systems
large software systems that we don’t know how to cope with but that are vital to our organization. The implication is that the system is large, monolithic and difficult to modify.
Older computer, network, or data systems for which compatibility continues to be maintained and are costly or time consuming to replace.
Any old computer system that was set up before your time and now continues to work and need support. Often legacy systems are problematic to upgrade because the people that put them together aren't around any more.
Any existing system that may require integration with the EIPP solution.
An existing data creation, management, reporting system in a company generally still in use.
A computer system or application program which continues to be used because of the cost of replacing or redesigning it and often despite its poor competitiveness and compatibility with modern equivalents. The implication is that the system is large, monolithic and difficult to modify. If legacy software only runs on antiquated hardware the cost of maintaining this may eventually outweigh the cost of replacing both the software and hardware unless some form of emulation or backward compatibility allows the software to run on new hardware
An operational system for entering a component's operations and administrative data. An example of a legacy system would be U. T. Austin's DEFINE.
Existing systems and technology in which an organization has considerable investment and which may be entrenched in the organization. Some systems have been in place for many years; some are considered old or inadequate technology; many are host-based with terminal emulation. Customers may be trying to replace or merely update legacy systems.
An older or outdated computer system or application program that continues to be used because of the exorbitant cost of replacing or reengineering it. Often such systems offer little competitiveness and compatibility with modern equivalents. Legacy systems are frequently large, monolithic and difficult to modify, and scrapping a legacy system often requires reengineering a firm's business processes as well.
An existing system repository of information and processes. Link Test A test to identify errors in linked modules of an application system. Link testing is an extension of module testing carried out on a number of levels of detail. Examples include, linked modules of a program, linked programs of a functional area or subsystem, and linked subsystems of the complete application system. The link test is usually a white box test.
An application that has been developed and maintained over a period of time, typically its original designers and implementors are no longer available to perform the system's maintenance. Often specifications and documentation for a legacy system are outdated, so the only definitive source of information about the system is the code itself.
Implies a computer or information system that is old or outdated. Often used to describe home-grown (custom built) mainframe systems, however, software companies will use the term legacy system to define any external system that is not based on the current version of a software package.
A mainframe- or minicomputer-based set of applications, files, and databases that has been in existence for a number of years. Legacy systems contain a large portion of an organization's mission-critical information and applications, with business processes often embedded.
The current system that houses University data. Because of its limitations for compatibility to current standards and systems, the Legacy system at Kent State will be replaced during this project and all information will be transferred to the new system. “Legacy system†is a moniker typically given to old, large system that have become outdated and difficult to maintain.
The term universally used to describe an old mainframe or application system. (For example: At UF, UF Bridges is replacing IA; thus, IA is the legacy system.)
A computer system or database that has been developed and modified over a prolonged period and has become outdated and difficult and costly to maintain, but that holds information that is very important and involves processes that are deeply ingrained in an organization. Legacy systems usually end up being replaced by a new hardware/software configuration.
Older software and hardware systems still in use and generally proprietary.
An existing IT system or application, often built around a mainframe computer, which generally has been in place for a long time and represents a significant investment. Compatibility with legacy systems is often a major issue when considering new applications.
An old information system still in use.
An existing system, usually a computer system, that must be accommodated in building new systems.
A system (and the associated programs, processes, and procedures already in place) currently deployed and in use within an organization. Considered in reference to new components, or when migrating to a new system. For example, when upgrading software within an organization, the legacy applications and procedures must be considered.
The existing system in use by a financial institution for processing payment card transactions.
Existing systems and technology that an organization has a considerable investment in and that might be entrenched in the organization. Some legacy systems have been in place for many years; some are considered old or inadequate technology; many are host-based with terminal emulation. Customers might try to replace or update legacy systems.
Existing transportation systems, communications systems, and institutional processes.
Jargon for an AIS that is currently in use, and initially deployed many years ago, using a computing infrastructure that is several generations old. These systems tend to be critical to the business and cannot be easily replaced or cost-effectively maintained. They are approaching or have reached the end of their practical operational life span.
An existing system that is deployed in an organization. In the fast moving IT industry, a system is considered stable and "old" as soon as it is properly implemented. Legacy systems will eventually be upgraded, replaced or archived.
A legacy system is an existing computer system or application program which continues to be used because the user (typically an organization) does not want to replace or redesign it. Many people use this term to refer to "antiquated" systems.