A legacy application is a software program or system that is outdated or no longer supported by its original developer. An organization may still use it, but it is often difficult to maintain or update due to its age, lack of compatibility with newer technologies and lack of resources. Legacy applications can pose a security risk and may not be able to meet the needs of the organization in terms of functionality or scalability.
Some examples of old or legacy technology languages / packages include:
Same like languages, variety of old databases were widely used in the industry. And some are still being used as of today. Following are some old or legacy databases:
These databases were popular in the past but are now less commonly used and have been replaced by newer databases such as MySQL, PostgreSQL, MongoDB, Oracle version 11g and above, Microsoft SQL Server version 2008 and above, and so on.
Companies using old technologies are considering the following challenges and planning to migrate to modern technologies:
There are a large number of business-critical applications still running in the industry with Legacy applications. There is a huge risk involved in running those applications as they are not having any compliance with the latest security/industry standards. In case the environment is getting affected or the application stops working, it might create a huge loss and customers are getting affected. The turnaround time to rectify the problem will be huge due to the unavailability of skilled resources for those Legacy technologies.