PublishedCode is a MixedConcerns strategy which is closely related to ExecutableTemplates.
Here, the URL is mapped to a script or a function written in a programming language. Upon a request, the corresponding code is invoked. Optionally, the script or function can include the declaration of a signature specifying arguments with which it should be called. These named arguments would then be extracted automatically from values submitted with the request, and would be passed to the invoked code as normal parameters to the function. (There are several variations on this theme of how the URL, and possibly a form, can be mapped to named and/or positional arguments declared by a function or similar construct.) Such code will then either write text to be returned to a file or return the text as a return value which the web server then can send back to the client.