Strategic sourcing involves continuously evaluating a company's purchasing activities to reduce costs. It aims to identify cost reductions, automate sourcing processes, centralize processes, and improve supplier management. Top challenges include lack of spend data visibility, limited resources, and reluctance to adopt standardized processes. Standardization of processes and use of technology like e-sourcing, spend analysis, and contract management tools can help drive savings and spend visibility. The modern strategic sourcing program requires linking sub-processes like these to realize identified savings opportunities.