The serial retrievement can reduce the retrieved scope to the cases of one case model, and theparallel retrievement can get the most similar case through the measure of similarity.

• 通过对实例的检索方式的研究，本文采用串行与并行相结合的检索方式，串行检索将检索的范围缩小到一个模板所对应的实例，并行检索则通过相似度的比较得出最相似的实例。