A novel general event-condition-state pattern framework

A novel event-condition-state pattern framework which is an event-based finite state machine is proposed. The framework improves GoF state pattern by re-segments GoF Context into a class which is responsible for management and a class which is responsible for operation interface. Complicated relations among event, condition and state are analyzed. Essential components for implementation, such as management, state transferring, and event triggering mechanism, are also designed in the framework. With the pattern framework, much effort in software development will be relieved, thus simplifying the whole development work. Taking advantage of it, different versions of a same input method system which are respectively for Windows Mobile system and Symbian are the developed in intelligent mobile phone. The pattern framework simplifies developing effort, and provides much convenience in later maintenance and update as well.