challenges in Internet measurement (1) (12-step program, from NSF ANIR PI meeting breakout session, jan 2003) motivating vision: self-aware network cultivate culture of sound measurement as science & discipline measurements need pedigrees describing them, how to navigate audit trails, portable analysis scripting language to support reproducibility well-managed meta-data understand sampling implications and technology better anonymization tools & reduction agents more strategic measurement, guided by rather than constraining research questions what data is missing and how do we strategically optimize the return on investment in data collection and instrumentation recognizing that we don't always know what questions will be asked next year improved standardized interface to data archives