Constraint-based User Interface Description Method

User interface is an interface for a user to communicate with a system. Graphical user interface still is the main interactive interface in current software system. The software development technology that solidified user interface in the software does not satisfy the development of platform diversification, there are more and more platform environment that software can run on, such as PC, PDA, Palm and Mobile Phone etc. The software development is now facing a new situation that software must be suitable for many kinds of platforms. But now user interface is always developed as part of the software, so if we want to change the interface, we have to rebuild it. What's worse is that if we transplant the interface to other platform, we have to do some recode. This problem drives model-based user interface development method which can suit the development of running platforms.Model-based user interface development has become a core research. Model-based user interface development is independent of platform and is created by the model during the running time. Constraint-based user interface description method is one important technique in model-based user interface development method. User interface is highly abstracted in CBUID method and is regarded as be composed of abstract interactive objects and a great many of constraints. The content of user interface is described by an interface description language and parsed by interface parse engine correspond to the running platform during the running time. The AIOs are mapped to concrete interactive objects in run-time environment and become to the actually user interactive interface at last.This paper firstly researched the applying situation of model-based technology in interface automatically making and integrated the technique on interface automatically making both in domestic and abroad, used the single-face rule to solve the layout inconsistent problem which in the current technology about generating user interface automatically ,and then summarize a set of available user interface automatically making theory and method, implements to generate user interface automatically on different platform with constraint-based user...