The Design And Implementation Of Enterprise Service Oriented SAAS Form Metadata Model

With the development of software technology, software technology of formulation has gradually developed. Software can be formulated on the basis of existing technologies through modules and components by configuring portfolio in order to meet different customer needs, rather than directly writing software, the component design and development platform for the separation of information, reducing the degree of coupling with other modules. Form system as the application of an abstract way through the configuration form, in theory, be able to meet business needs, and enhance the software reuse. Under actual conditions, due to the abstraction form system is not enough, can lead to a form configured to meet the business needs of a small part, but part of the coupling in the form of customized system development, leading to difficulties in the application extensions, code maintenance more difficult.SaaS enterprise service-oriented data model table cell in this paper, from the perspective of metadata re-form modeling system, form an entity separate and abstract metadata model and view metadata model from the data storage and display two dimensions, and its components, thereby reducing the coupling form systems, greatly enhancing the reuse rate. The main work includes:1) Entity MetaData map all object and assocation to the database, it’s a basis of form’s data storing.2) design and implement a metadata view of the form of the system. Metadata View present entity and its relationship on the page, is the ultimate expression of the form system to interact with customers.3) design and implement a component-based form system, thus enabling the form system to provide component-based service to to other systems.