In principle, blockmodeling, as a process, is composed from three steps. In the first step, the number of units is determined. This is followed (in the second step) by selection or determination of permitted blocks, that will occur and perhaps also the locations in the matrix. The last, third step, using computer program, the partioningpartitioning of units is done, according to the pre–set conditions and additionalyadditionally, the final matrix is selected for the gained model. With this, the [[blockmodel]] is created.<ref name="Exploratory">{{Cite book |last1=Nooy |first1=Wouter de |last2=Mrvar |first2=Andrej |last3=Batagelj |first3=Vladimir |title=Exploratory Social Network Analysis with Pajek. Revised and Expanded Edition for Updated Software. Third Edition |publisher=Cambridge University Press |date=2018 |isbn=978-1-108-47414-6}}</ref>{{rp|333}}
