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In 2015, the Systems Engineering Research Center (SERC) published the Software Cost Estimation Metrics Manual for Defense Systems. This manual presents the results of research conducted by SERC Researchers Ray Madachy and Brad Clark, who with the help of Barry Boehm, have documented the core metric definitions along with relevant and useful cost estimating relationships for software intensive defense systems. The e-book is available for download at the following link… http://cdn.sercuarc.org/wp-content/uploads/2014/05/Software-Cost-Estimation-Metrics-Manual-for-Defense-Systems.pdf What’s great about this manual is that it covers best practices specific to software systems in the areas of measurement, data collection, normalization, analysis, benchmarking, and CER development.  The ...
Last week I had the pleasure of attending the 30th annual COCOMO Forum in Arlington, VA.  As always it was an informative and enjoyable exchange of software and system estimating topics and challenges with some of the brightest practitioners in the industry.  Topics ranged from technical debt and software maintenance, early phase effort and schedule estimation, COSMIC function points and various data analytics topics.  In addition to the presentations there were several lively workshop panels discussing and debating future directions for the COCOMO and CoSysmo models (contemplating the 3.0 versions of each of these models. While all the talks were ...
Being that software measurement is a topic of great interest, I will occasionally look to Google for inspiration and trends.  Often these searches will return several of my own papers and it’s fun to revisit them and think about how much as things change, they remain the same. Recently, I stumbled across a paper I had written many years ago – it was in fact the second or third article that I had published in a magazine (see the article here).  I read through it briefly and was really struck by how relevant it still is today.  The paper ...
Recently I was asked for more detail about the implementation of COSMIC Function Points as a functional size measure for the software estimation model in TruePlanning® (True S).  Common Software Measurement International Consortium (COSMIC) is a group of software measurement experts who in 1998 recognized the need to improve on the traditional function point methods.  Because the origin of International Function Point User Group (IFPUG) Function Points with IBM, the method tends to favor business systems (though advances have been made to extend IFPUG Function Points with “Software Non-Functional Assessment Process (SNAP) – more on this to come in ...
Original Post Date: Friday, July 9, 2010  While sitting in the operatory chair yesterday, my dentist said something that made me stop. He was complaining about an increasing rate of incompetence and apathy he observes in those delivering services to him. And while I do agree with him in principal, he and I are of the age where some folks label us as grumpy old men. So, it may not be as bad as we think. Regardless, the statement he said he made to the an unfortunate poor-quality service provider was, “If you don’t have the time to do it ...
Original Post Date: Wednesday, May 12, 2010 From my perspective as a cost researcher, the calibration tool is one of the most powerful analysis capabilities built into the TruePlanning cost management software . One way I can use this tool is to go back to an old estimate for a project that is now completed, and analyze the correctness of the previously entered input values. With this analysis, I can find ways to improve our methods of soliciting input values from the user to ensure the best values are entered the next time. This way, the TruePlanning models keep getting “smarter” as new information ...
Original Post Date: Friday, June 4, 2010 One of the great features of the TruePlanning cost management software is the fact that it makes it easy to handle complications of inflation and estimating projects performed in different countries and currencies. The costs associated with doing work in different countries, and the relative value of different currencies is constantly changing. To address this, the cost research team at PRICE does an annual economic update performed by the cost research team, and this blog will introduce some of basic concepts and research that goes into maintaining this feature every year. The price of goods and ...
Original Post Date: Monday, April 26, 2010  With so many acquisition programs over budget and behind schedule, the term “Cost Realism” is suddenly very popular. In my experience as an estimator on many major acquisition programs, two things have remained certain over years (besides death and taxes). First, the probability of the program ever achieving the original cost estimate is exactly zero and second, the more information that is known about a program, the more it will exceed its original cost estimate.    With that said, the move to Cost Realism is so important because it recognizes these two fundamental ...
Original Post Date: Friday, May 21, 2010 Last month I blogged about the importance of cost realism, its roots and how as estimators we must always reflect the truth, no matter how unpopular. This month I want to share with you a recent experience on a Source Selection. As part of the Source Selection team, my role was to conduct a Cost Realism estimate on each of the performers submitting bids. I want to share with you a few insights from that experience. One of the first rules I always follow is to never ask engineers to provide data that ...
Original Post Date: Wednesday, June 30, 2010  I recently had the opportunity to work directly for one of our clients on a high visibility, must-win proposal. The contractor was just about ready to commit to the bid number, but wanted to know the likely bids of the other two performers. We were asked to do a “Ghosting the Competition” study where we ethically collect open source data on two competing designs and combined with engineering technical data to develop a best cost estimate of the competitor’s bid positions.   Unfortunately, not much intelligence was known about the competing configurations, but the ...