Research Of Invoke Framework Component Software Model

The procedure-oriented and the object-oriented are two important software methods. Component technology based on object technology provides technological basis for resolving questions of improving software's reusability, extensibility, adaptability and maintainability etc. Component software engineering provides helps on engineering criterion for developing component software.Invoke Framework Model is a component software model based on interface connection, which conforms to component software engineering criterion, establishes component's code and description criterions and assembly's construction and description criterions, and provides some framework tools, including component and assembly description tools, assembly's run tool and run management tool, and component and assembly management tools etc.Component is the constitutional unit of component software, which belongs to application category rather than framework model category, but it is prescribed and managed by framework model. Assembly is the result of assembling components and in fact it presents an interface linkages set. Interface linkage is a link structure made up of a component instance interfaces set, an interface relations set and a virtual interface. A virtual interface is identification to an interface linkage, and the whole linkage can be manipulated by it. Model framework tools provide support environment for developing component software.Invoke Framework Model adopts the strategy of describing component and implementing component dividedly, and they have not firm sequence. At the same time, constructing assembly only uses components' description information, so that it has not firm sequence with implementing component. Implementing component is equal to component software's physical development process, and constructing assembly equals component software's logical development process. Component and assembly's parallel development makes component software based on the framework model hold parallel development ability.As a component software reference model, Invoke Framework Model provides the basic concepts, criterions and framework tools that are needed by component software's developments, and holds the characteristics of basically integrated model structure, relatively simple concepts, criterions and operations and parallel development ability etc. By making component samples, constructing assembly samples, testing and running assembly samples, the results proves the model's study idea and methods are right and feasible, and the model basically reaches its design purposes.