Practical Software Estimation Measurement

Blogs

What Can Goldilocks Teach about Software Estimating?

You may not be aware that in 1837 when Robert Southey published his popular retelling of the Three Bears story, the U.S. experienced the “Panic of 1837,” a financial crisis that touched off a decade long recession featuring unemployment, pessimism, lowered profits/prices/wages, and blamed on domestic and foreign origins. While we might consider 1837 a simpler time - it was without modern conveniences like indoor plumbing, the internet, and supersonic travel – some aspects of human behavior and communication aren’t that much different today. I thought about this when I was keynoting the 20th anniversary EuroSPI2 conference (software process improvement) in Ireland, the same week that I read the following in the British press

“The Department for Work and Pensions has dropped a coalition government scheme to avert software disasters from its £2bn Universal Credit programme” forecasting the cancelation of the largest ever agile software development project – a project now four plus years behind schedule with potentially billions of taxpayer funds at risk.  

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Estimation

Webinar - Bringing Estimation and Business Intelligence to the Enterprise

Watch the webinar replay for Bringing Estimation and Business Intelligence to the Enterprise, presented by Keith Ciocco.

Successful software development estimates depend upon more than just inputs, especially at the enterprise level. They require collaboration between stakeholders, consistency in estimation methods, and historical basis. It's also essential to account for uncertainty and risk. In this webinar, Keith Ciocco demonstrates how SLIM-Estimate and SLIM-WebServices work together to bring reliable business intelligence to the enterprise, while leveraging historical data to increase estimation accuracy and credibility.

As Vice President of QSM, Keith has more than 25 years of experience working in sales and customer service, with 17 of those years spent at QSM. Keith's primary responsibilities include managing business development, existing client relations, customer retention and response.

Watch the replay!

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Webinars Estimation

Webinar - A Practical Approach to Measuring Software Development Productivity

On Oct. 2, 11:00 AM EST, QSM's Phil Armour will present "A Practical Approach to Measuring Software Development Productivity" as part of the ITMPI Webinar Series. 

Most measurements in software development are notoriously difficult and assessing productivity is no exception. There are an enormous number of factors that could or do affect productivity, and it is challenging to identify and characterize what they might be. The effort involved often deters organizations from even attempting to quantify how effective they are at building systems. This webinar will present a useful and practical approach to productivity measurement based on a mathematical model of systems development and over thirty years of research. It will also describe the core mathematical functions that relate to the major attributes of systems development, show how a useful productivity metric can be calculated from project history, and demonstrate how QSM’s database of over 10,000 projects support this view of software development productivity.

Register now!

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Webinars Productivity

New Article - All In: Collaborative Software Estimates

Collaborative Software EstimationSoftware projects often commit to unrealistic schedule and budget expectations due to little or no information about the size and scope or productivity. Yet the business reality is that projects must be estimated early in the life cycle to support business goals and strategic planning. These challenges can be overcome with a transparent and collaborative estimation process. It depends on metrics collection, analysis, risk comparison, and a structure for sharing the right information with the right people at the right time.

In an article recently published on Projects at Work, Laura Zuber explores the benefits of collaborative software project estimates and identifies best practices for implementing them.

Read the full article!

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Estimation Articles

How to Use Big Data to Improve Your Software Projects

In the recent Washington Post article How the Obama Campaign Won the Race for Voter Data, Joel Kowsky writes about how the 2012 Obama campaign used analytics to improve their campaign strategy, and to ultimately secure the presidential victory.  

Regardless of where you stand on the political spectrum, it’s hard to argue that Barack Obama’s campaign strategy was anything short of impressive.  As soon as Obama took office in 2009, his team began preparing for his 2012 campaign.  From the start there was a strong emphasis on measuring the campaign’s progress.  Jim Messina, Obama’s 2012 campaign manager, stated 

“There’s always been two campaigns since the Internet was invented, the campaign online and the campaign on the doors.  What I wanted was, I didn’t care where you organized, what time you organized, how you organized, as long as I could track it, I can measure it, and I can encourage you to do more of it.”

The team began by conducting a postmortem study on their 2008 campaign where they analyzed the number of homes visited, phone calls placed, and voters registered by each field organizer and volunteer.  The result was a 500 page report which highlighted areas of improvement for the 2012 campaign.  

The suggestions led the Obama campaign to invest in building customized software that would integrate all the data the campaign had collected on voters, donors, and volunteers and link to individual voter profile.  This software analyzed previously collected data to calculate the likelihood of candidate support, the likelihood of election day turnout, and the degree of persuasion for each voter.  

Customizing SLIM Suite Workbooks

Although each workbook is set up with default themes, the look and feel of SLIM-Estimate, SLIM-Control, SLIM-Metrics, and SLIM-MasterPlan workbooks are readily customizable.  

Default workbook settings

Screen Background

The easiest way to change the feel of your workbooks is to change the background color and style.  To change the background color, go to Tools|Customize Display|Screen/Printer Fonts, Colors, and Symbols…, then go to the Colors & Symbols tab on the right.

Screen/Printer Fonts, Colors, and Symbols

Color Start and Color End are important if you want to create a gradient background, like the background in the first image.  A gradient background begins with your specified Color Start color then transforms into your Color Stop color either vertically, horizontally, or diagonally (pictured above).  If you choose the Solid color style, simply select your Color Start.

Graph Background

Like the Screen Background, you can have a solid background or a gradient.  Simply follow the steps above for selecting your colors and styles.

Solutions and Reference Data

New White Paper: An Analysis of Function Point Trends

Function point analysis has played an important role in software measurement and analysis for 30 years, but what will be the role of function points in the future? Will they have staying power? Expanding off of a recent article for IFPUG's Metrics Views, Don Beckett looks at the QSM software project database and examines a set of validated projects counted in function points that have completed since the year 2000 to see what they tell about productivity, schedule, and staffing. We are fortunate to have several thousand projects in this sample to work with as this allows us to parse the data many different ways and still have enough projects to be statistically significant. For this study only unadjusted function points were used.

Read the full white paper!

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Articles Function Points White Paper

Smaller Project Teams Are More Productive

It's no secret we're advocates of smaller teams, but it's always nice when others agree. Baseline's Tony Kontzer leveraged some of our most recent data for an informative slideshow about team size.

At one time or another, almost all information technology professionals have heard cries for more resources. They may even have been the one asking for help. "If only there were more people available for this project," they've said, "then maybe it would get done on time." Well, it turns out that more staffing is not the equivalent of optimal staffing. In fact, smaller project teams are more productive and can complete projects cheaper and faster than larger ones, according to a recent study from software life cycle consultancy Quantitative Software Management. That should be good news for IT departments that have seen their ranks depleted in recent years.

To see more results from QSM's recent study, read Don Beckett's post on the correlation between staffing and schedule.

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Team Size QSM News

Staff That Project!

I should be the last one to complain about overstaffed projects; I may owe my career to one.  My first job in information technology (IT) was with a mortgage company that was a textbook example of bad practices.  Annual personnel turnover was 90% and after six months on the job, I was the person on the IT staff with the most seniority.  After a year, I knew it was time to go.  I applied for a job with a large systems integrator that was hiring furiously.  I was drug free, did not have a criminal record, and knew COBOL, so I was a perfect match.  The project to which I was assigned had planned to ramp up to a peak staff of 25 and last about 8 months.  I was team member number 60 of the 80 it eventually grew into by the time it completed (in 18 months).  I stayed with that company for a number of years and have no complaints about the wide range of experiences that I had and skills I gained. 

What is the best way to determine how much staff a software project should have?  QSM has conducted a productivity study on projects sized in Function Points that suggests a way.  A large sample of projects (over 2,000) was split into size bins.  Within each bin the projects were divided into quartiles based on their staffing. The average and median productivity (Function Points per Person Month) were determined for each quartile.  The following table compares productivity and staffing levels for the smallest and largest staffing quartiles.

Productivity Rates

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Team Size

QSM Expands into Asia Pacific Market with RedBay Consulting Partnership

Having seen incredible growth in our business domestically and in Europe, QSM continues its interational expansion by partnering with RedBay Consulting. RedBay will provide SLIM tool licensing and consulting services, as well as local customer support in the Australia, Asia, and Pacific regions. 

RedBay Consulting is a major provider of Schedule Compliance Risk Assessment Methodology (SCRAM) assessments, which use SLIM as an important component of a schedule compliance review. They help organizations to be more effective in the delivery of their software products and services. Services include consultancy, training and assessment of organizational processes for the acquisition, development and support of software intensive systems. When working on behalf of QSM, RedBay Consulting will conduct business as Quantitative Software Management-Asia/Pacific. 

Read more about this exciting partnership!

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QSM News