This document presents a draft working aid on common outcome indicators (COI) in vocational skills development (VSD) projects for the Swiss Agency for Development and Cooperation (SDC). It describes the development process, which included participation from SDC and partner organizations. The working aid includes COI definitions, operationalization, and tools for four domains: gainful employment, systemic change, training relevance, and outreach/scale. The document recommends using the working aid to strengthen results monitoring and reporting while allowing flexibility, and plans to finalize it by the end of 2013.