This Intellectual Output is the final IO of the DISKOW project and covers the activities carried out to assess the final prototype of the Job Knowledge Base platform. The first chapter is devoted to the analysis of the online job vacancies in the labour market, followed by the second chapter, which describes the JKB prototype as a final outcome of the project. The third and fourth chapter are focused on the assessment activities. To assess the accuracy of the data extraction, a sample of random job postings was selected and the extracted data were manually compared with the original text published online. The results were analysed and potential improvements, which could be achieved by the future users identified. Further, external stakeholders were approached and interviewed with the aim to evaluate the user experience with the JKB prototype. The answers obtained are analysed and summarized in the chapter 4 of the IO5.