Seaside
Seaside, short for Seaside Web Framework, was created in 2000 by Avi Bryant. Seaside is a web application framework for Smalltalk that emphasizes component-based development and stateful web programming. It is used for building interactive, dynamic web applications and research prototypes, particularly where maintainable, modular, and highly interactive UI design is required.
Zend
Zend, short for Zend Framework, is a PHP-based application framework designed to build robust, scalable, and maintainable web applications and APIs. It provides a collection of loosely coupled components that address common concerns such as routing, dependency injection, authentication, caching, and database access. Zend has historically been used in enterprise environments and large-scale systems where long-term stability and explicit architecture matter.