Abstract: The potential benefits of software reuse include a reduction in development time, effort, cost and an increase in quality and productivity. Reuse is carried out either by using component based software development or by systematic reuse as is employed by software product lines. Improved accessibility of open source software components has opened up new avenues for combining software components with software product lines. As a result, proposals for open source component based software product lines appear in the literature. This study is a step forward in this direction. An assessment approach for software component reusability is employed and reusability of several components is assessed. The results include a statistical analysis to determine the correlation between the factors of reusability. The results show a strong correlation of four out of six identified factors with reusability.