Analysis Of Grain Depot Information System Based On Domain Engineering

Efficient management of grain depot is an important means to ensure the construction of people's livelihood in China.With the rapid development of "Internet +" at the present stage,it is imperative to build an intelligent and systematic information system for grain depot by integrating the opinions on grain reform put forward by the state food department.In the era of Internet technology with both opportunities and challenges,the biggest problem of grain depot informatization is how to improve the system development efficiency and ensure the quality of system operation while reducing the development cost in the field of grain depot informatization.In the whole process of system development using domain engineering method,reusable resources will be generated.Effective utilization of these reusable resources can improve the system development efficiency and guarantee the system quality,thus solving this difficult problem.Combining the existing domain analysis method and software reuse theory,this paper constructs the domain feature model based on the domain use case model and obtains the reusable domain model.Taking the field of grain depot information system as an example,this paper comprehensively analyzes the use case models of various systems in this field,gives the detailed process of building the domain use case model,and presents the unified semantic terms of the use cases.Then,domain use cases are used as the basic input to obtain the domain features.Combining with the existing feature descriptions,the definition of the features is given,and the features are represented by objects.The basic properties and variability of the features are analyzed and described to make the definition of the features more explicit.Then using layered abstract thinking and combining with object-oriented method to hierarchical description of characteristics,from the elaboration of the relationship between features and feature dependencies between two aspects to the relationship between features are described in detail,and gives the corresponding relationship between the object and feature relationship table,offers help to determine the relationship between characteristics.Then,the algorithm of constructing domain use case model and the algorithm of determining the relationship between features are designed,and the constraint conditions of verifying the consistency of feature model are given.Finally,the construction method of domain characteristic model based on domain use case model is applied to the field of grain depot information system.By analyzing the two sample systems of "Liang Feng" and "Do Grain",the characteristic model in the field of grain depot information system is constructed,and the characteristic modeling method proposed in this paper is validated effectively.