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\section{Software Testing and Personal Collections Quality Assessment}  Developed software tool was applied for creation of personal collections for the course "Programming Languages. C++" in Volgograd State Technical University. Testing included the following steps: creation of personal collections by students themselves using Collection Builder; creation of personal collections for students by tutors-experts; comparative analysis of created collections, assessment of collections quality, estimation of collection creation time.  As a quality criterion for the personal learning collection we used the relevance to the search query, at that, the relevance is defined on the basis of the following quantitative metrics that used in information retrieval tasks \cite{Rijsbergen}: