IBM Domino
IBM Domino is an enterprise collaboration and application development platform originally developed by Lotus. It provides integrated services for email, calendaring, workflow automation, and custom business applications using a document-centric database model. It is known for its robust security, replication capabilities, and support for rapid application development.
Developers should learn IBM Domino when working in legacy enterprise environments, particularly in finance, government, or large corporations that rely on its secure, scalable collaboration tools. It is valuable for maintaining or modernizing existing Domino applications, integrating with other IBM products like Notes, or developing workflow-driven business solutions where document management and replication are critical.