This document discusses techniques for surveying and analyzing the external environment, including the PESTEL framework and scenario analysis. It describes the Environmental Threat and Opportunity Profile (ETOP) as a tool for systematically evaluating environmental information to determine significant threats and opportunities. An example ETOP is provided for an engineering company, identifying socio-economic, technological, supplier, government, and competitive factors as opportunities or threats. Finally, the Quick Environmental Scanning Technique (QUEST) is outlined as a four-step process for strategists to observe trends, speculate on issues, develop scenarios, and identify strategic options.