Relationships Related Term:  computer system n. ~ Computing · Software or hardware that was built using methods that are outdated or obsolete. Notes:  'Legacy system' connotes a system that [..]

Outdated computer systems

an old hardware or software system which is generally out-dated in some way, either based on obsolete hardware or using an older user interface (such as a character-based interface). The term is usual [..]

implies a business computer/information system that is old or outdated.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 [..]

In computing terms, a legacy System includes software or database components inherited from a previous computing model which do not fit into an open system environment without some modification. In th [..]

A system that is considered old and possibly outdated (e.g. old medical billing software system).

A legacy system is an "antiquated" existing computer system or application program which continues to be used because the user does not want to replace or redesign it. Legacy systems are con [..]

An information system that has been in use for a long time, usually on a mainframe or minicomputer.

A legacy system, in the context of computing, refers to outdated computer systems, programming languages or application software that are used instead of available upgraded versions. Legacy systems al [..]

System 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. S [..]

An existing system, usually a computer system, that must be accommodated in building new systems.

Any computer system, application, or technology that is obsolete, but continues to be used because it performs a needed function adequately.

Software and/or hardware that has been rendered outmoded or obsolete. A legacy system is often retained despite being decommissioned "in case" its information is needed in the future.

Existing transportation systems