Construction method and device of view data model

Abstract

The invention relates to the technical field of application software development, and discloses a construction method and device of a view data model. The construction method of the view data model comprises the following steps: obtaining at least one prototype data table; analyzing the prototype data table to obtain at least one classification view; combining the classification view to form at least one business module; and through the objectification of the business module, constructing at least one entity object view, wherein the entity object view provides a uniform interface for an application layer. The invention also provides a construction device of the view data model. Through the construction of multilayer virtual view data, modularization connection between a data layer and the application layer is realized to adapt to the change or the expansion of business requirements to reduce influence on the data layer and the application layer of software due to the change of the business requirements so as to meet the requirement of high software iteration and informatization update speed.

Description

technical field [0001] The invention relates to the technical field of application software development, in particular to a method and device for constructing a view data model. Background technique [0002] The database is the main medium for storing data and also the basis for undertaking the application layer, so there are many factors to be considered in the expansion and modification of the database structure. Such as figure 1 The data model of the current data layer and application layer is shown. Generally, the modification of the database table structure has a wide range of influence. For example, when adding a database field or modifying an attribute, it is necessary to modify the memory, function, view, etc. of the current data layer. For Cluster or master-slave databases also involve modification, and then code modification at the application layer is inevitable. At the same time, the structure modification of the data table affects the index structure, and the ...

AI Technical Summary

Problems solved by technology

[0004] In the current software design and development process, due to the limited data model between the existing application layer and the data layer, as the business continues to change, it may be necessary to frequently modify the data table, application layer code, etc., which cannot satisfy rapid software iteration And the requirements of enterprise information update speed

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