You are implementing a new information system. You have to deal with issues related to other existing systems such as lack of integrations and differences in how data are stored. These existing systems are called:
You are implementing a new information system. You have to deal with issues related to other existing systems such as lack of integrations and differences in how data are stored. These existing systems are called:
The existing systems that you have to deal with related to issues like lack of integrations and differences in how data are stored are called legacy systems. Legacy systems are outdated computer systems or applications that are still in use, despite being superseded by newer systems. They often pose challenges such as incompatibility with modern systems and difficulty in integrating with other technologies.
They are called legacy systems