Domain Oriented Modeling, Estimation And Improvement for Aerospace Systems Domains Dan Galorath Copyright 2011 Galorath Incorporated

SEI Requirements For Estimating (Source DCG, SEI) Corporate historical database Structured processes for estimating size & reuse Mechanisms for extrapolating benchmark characteristics of past projects Audit trails Integrity dealing with dictated costs & schedules Data collection and feedback processes foster correct data interpretation

Domain Specific Modeling Different Sizing Methods Different Cost Drivers E.g. real time code, time constraints, etc. is a cost driver in some domains Different development approaches Not as much agile in Aerospace Safety and Security Issues in many Different “actuals” for comparison and benchmaking © 2011 Copyright Galorath Incorporated 3

SEER Cost IQ Based Reasoning Cost IQ uses case-based reasoning (CBR) by solving new problems based on the solutions of similar past problems.

Cost IQ - Obtaining Cost Directly From Limited Requirements Case Based Reasoning can transform high level requirements & specifications into a cost modeling workup within a sophisticated cost estimating tool. Cost IQ uses case-based reasoning (CBR) by solving new problems based on the solutions of similar past problems.

Using Key Technical Performance Parameters (KTPPs) SEER EO Sensor Example Sample inputs © 2009 Copyright Galorath Incorporated 6 KTPPs can be used for cost/performance trade-off analysis

What can a parametric model tell you? 7 7 What is likely to happen Feel lucky? Firm Fixed Price? Understand the risk before you commit!

SEER Provides Numerous Size Measures AND Allows Organization Specific © 2011 Copyright Galorath Incorporated 8

COTS Estimation (Existing Components) 9

Estimate Total Ownership Costs; 60+% Can Be Infrastructure & Services Software Development Software Maintenance IT Infrastructure IT Services © 2009 Copyright Galorath Incorporated 10

Every Estimate needs to be Substantiated & Benchmarked SEER-SEM Estimate Your Data Regression Trend Line Galorath Benchmark Trend Line Your History Data Why Should We Care: Variances can identify estimation issues. Benchmarking can be path to improvement 11