Business process and software component has relationship on business process execution in the organization or company. Changes in business process affecting the software component. A Method is needed to determine traceability of artifacts between process on business process and software component. The purpose of traceability is to trace the difference between business process of accompany and its software component through the artifacts. The artifacts in business process are identified by sequence of process, while the artifacts in software component are in the form of modules. In the proposed method, there are two main stage, namely modelling of process on business process and software component and document clustering using Probabilistic Latent Semantic Analysis (PLSA). In the modelling phase, process on business process and software component are grouped into documents. Then, the documents are processed by separating document into words. In the document clustering, documents are calculated using PLSA. It can be concluded that the document clustering can be done with recall 100% and precision 59%.