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Crowdsourcing is a model which allows practitioners to access a relatively inexpensive and scalable workforce. However, due to loose worker-employer relationships, skill diversity of the crowd and anonymity of participants, it tends to result in lower quality compared to traditional ways of doing work. Thus crowdsourcing practitioners have to rely heavily on certain quality assurance techniques to make sure that the end product complies with the quality requirements. Quality assurancedoi:10.15346/hc.v1i2.14 dblp:journals/hc/IrenB14 fatcat:i5hoc3q5tze2tnqabsrwu4qzqi