Research Framework Of Business Logic Layer On Patterns

In order to adapt to variable customer needs, enterprise will frequently have to adjust their business, which makes software development needs to constantly adapt to the variable needs of the business, in software architecture system,business logic layer is the core part in expression business needs, its complicated and variable characteristics due to no standard framework can be used. Most developers design and organize business process by their software development experiences, So that the quality depends on the familiarity of related domains of business logic layer and the software development experiences. In this case, we need to construct a framework for business logic when we face the unpredictable needs, which can make the software architecture system without being damaged possible, This paper mainly consists of the following parts:1. In-dept study of relevant business logic framework theory, discusses the relevant theory of business logic framework meta-model subparts and business processes, activities and the relationship between atoms operation. And analysis the design patterns in it, discusses the use of the design pattern environment and occasions.2. Put forward a business logic framework based on patterns to adapt to variable needs, analysis the framework from the static structure of business logic, Use the business logic framework meta-model and business process decomposition to establish domain model in order to ensure the sustainable development of business logic layer; based on the facade patterns in encapsulated business, make it more convenient by upper calls. Use the improved chain of responsibility for the combinations of the business process, all the method can enhance the extensibility of business logic framework. Secondly, analyze the framework from the perspective of dynamic in iterative development, when the business changes, Find the influence of other business in the framework and propose the solutions on it3. Use the framework implementation tickets on passenger cars, illustrating the business logic framework structure rationality. Through the comparative analysis between the traditional development and the development based on the framework, the result proved the good capability of this framework.