* Logback's architecture is sufficiently generic so as to apply under different circumstances. At present time, logback is divided into three modules, logback-core, logback-classic and logback-access. * The logback-core module lays the groundwork for the other two modules. The logback-classic module can be assimilated to a significantly improved version of log4j. Moreover, logback-classic natively implements the SLF4J API so that you can readily switch back and forth between logback and other logging frameworks such as log4j or java.util.logging (JUL). * The logback-access module integrates with Servlet containers, such as Tomcat and Jetty, to provide HTTP-access log functionality. Note that you could easily build your own module on top of logback-core.

* Pantheios supports diagnostic logging of message statements of arbitrary complexity, consisting of heterogenous types. * Pantheios supports filtering of log messages based on severity level including (but not limited to) the eight levels defined by the SysLog protocol. * Pantheios supports back-end output, individually and in combination, to file, stderr/stdout, SysLog (including a custom implementation of the SysLog protocol for Windows), Windows debugger, Windows event log, COM Error Object, speech, or any custom back-end extension you care to write. Importantly, Pantheios is readily extended to use the existing transport mechanisms of feature-rich diagnostic logging libraries such as ACE, log4cpp, log4cplus, log4cxx.