THE JOINT CONFIDENCE LEVEL (JCL) PARADOX: A HISTORY OF DENIAL, A PRESENTATION PAPER AT THE 2009 NASA COST ESTIMATING SYMPOSIUM - INTRODUCTION OF THE JOINT CONFIDENCE LEVEL PROBALISTIC CALCULATOR (JCL-PC)(28 APR 2009)

THE JOINT CONFIDENCE LEVEL (JCL) PARADOX: A HISTORY OF DENIAL, A PRESENTATION PAPER AT THE 2009 NASA COST ESTIMATING SYMPOSIUM - INTRODUCTION OF THE JOINT CONFIDENCE LEVEL PROBALISTIC CALCULATOR (JCL-PC)(28 APR 2009)., The authors provide Historical Evaluation of Cost and Schedule Estimating Performance During NASA's Tenure as an Agency - Following which they introduce an optimum Hybrid model for more accurately calculating Cost and Schedule estimates in NASA's Complex systems engineering environment.) This paper is intended to provide a reliable methodology for those tasked with generating price tags on construction (CoF) and research and development (R&D) activities in the NASA performance world. This document consists of a collection of cost-related engineering detail and project fulfillment information from early agency days to the present. Accurate historical detail is the first place to start when determining improved methodologies for future cost and schedule estimating. This paper contains a beneficial proposed cost estimating method for arriving at more reliable numbers for future submits.