基于Preview的面向方面的需求挖掘

传统的面向视点的方法主要针对功能和非功能需求,而作为方面的横切关注点横切于需求之中，影响了系统的内聚性和耦合度，从而降低了软件的可重用性，增加了维护的难度。因此，通过对Preview方法的扩展实现识别功能需求、提取方面、复合需求。把传统需求分析的功能需求和方面需求的识别的优势相结合，使得其能够明确核心关注，减少横切关系的影响，从而提高系统模块化程度和需求追踪性。实验结果表明此需求分析模型有效地实现了方面的提取。

Mining of aspect oriented requirements based on Preview

The traditional viewpoint-oriented method mainly aimed at functional and non-functional requirements, which results in lower values for modifiability and reusability. Therefore, the expansion of Preview can meet the requirement of identification. Combination of the advantage of identified aspects and identified traditional requirements can clear the core concern and reduce the impact of crosscutting concerns.Thus it is more favorable to improve the degree of system modular and requirement traceability. The experimental result shows that the proposed requirements analysis model is effective identified aspect.