2004-2005 Annual Report ► Preface Each EarthScope Project Annual Report is designed as a self-contained document that presents the basic project execution plan and allows the reader to assess the extent to which EarthScope is on schedule, on budget, and moving towards its scientifi c and educational goals. The Annual Report summarizes: (a) program activities, (b) progress towards quarterly milestones, (c) cost schedule status report (CSSR) with explanations of variances of 10% or greater, (d) cost schedule performance, (e) contingency funds, and (f) change orders. It also includes a list of project concerns and action plans. We use scheduled milestones to report technical progress in terms of stations being installed, data becoming available, and progress in drilling and monitoring. We use Earned Value Management to correlate progress made with funds spent, and through variances, to identify quickly areas that may need corrective action. Change suggestions (both internal and external) are welcome at all levels of EarthScope, and a change request form is available on the EarthScope website. Change suggestions are evaluated through a formal process that weighs scope, schedule, cost, risk, and gain against the program’s scientifi c objectives. All changes are formally recorded in the EarthScope Change Control Log, a summary of which is contained within this report. EarthScope is committed to a responsive and transparent management structure. Our progress reports are published, posted on the EarthScope website, and submitted to the National Science Foundation under the terms of the EarthScope Project Execution Plan. Additional information can be found on the EarthScope website (www. earthscope.org) and by directly contacting the EarthScope offi ce (
[email protected]).