Program slicing-based function reusability measurement method

Abstract

The invention discloses a program slicing-based function reusability measurement method. The method comprises the following steps of: constructing a program dependence graph for a source program, and calculating slicing results by taking a code behavior slicing criterion where a functional interface is located, wherein each slicing result is a statement associated with a corresponding functional module; constructing measurement indexes of the functional modules on the basis of the slicing results, wherein the measurement indexes comprise a clustering degree, a cohesion degree, a cyclomatic complexity, a public method number, a maximum nesting layer number and a coupling degree average value of the functional modules; and constructing a functional module reusability measurement value calculation formula according to the measurement indexes, and obtaining reusability relative values of the functional modules so as to screen the functional modules with relatively high reusability.

Description

technical field [0001] The invention relates to the field of function reusability measurement in the field of software evolution, in particular to a function reusability measurement method based on program slicing. Background technique [0002] Modular development has become an important core idea in the software development process. Its purpose is to effectively reduce the coupling between modules in large-scale software products with complex business logic, to facilitate later software maintenance, and to facilitate functional modules Extraction and effective reuse in other software to achieve the purpose of reducing development costs and shortening the development cycle, which has very practical significance for improving software reliability and development quality. The measurement of the reusability of related codes in software usually includes two steps, first extracting or locating the reused code, and then measuring from the complexity of dependencies and other aspec...

AI Technical Summary

Problems solved by technology

Most of the objects measured for reusability are components, which are not refined to a specific function in the component, which increases the scale of reusable objects and increases the risk of reusability

[0005] (2) The accuracy of the associated code of the reused object is low

The reusable object is associated with related functions or components through the established UML diagram, and the specific statement cannot be accurately located, which may easily cause redundancy and omission in the scale of reusable code;

[0006] (3) Comparison of the ease of reuse of the lack of all reuse objects

The ease of reuse of reused objects in the source program lacks consideration from a global perspective, and there is no clear contrast with other reused objects in the source program

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