Reducing the time for registering a company from weeks and months to under one hour is a concrete result of a unique and ambitious initiative in Portugal to make the public sector more efficient and effective. The Simplex initiative aims at making life easier for citizens and businesses. It focuses on how e-government can be used as a lever for broader administrative simplification, making service delivery more coherent and efficient. This is the first integrated study undertaken by the OECD to analyse administrative simplification and e-government in a national context. By bringing those two areas together in the context of public management reform, this review helps countries identify how these reform activities can best support overall government performance and economic growth. The report is in English only. A French translation of the Assessments and Proposals for Action has been included in this volume.