Software projects are inherently risky. Some statistics show that roughly 70% to 50% of software projects get classified as "challenged". Where challenged can mean cost overruns and/or delivery delays, or it can mean complete failure and the cancellation of the project. Some statistics indicate as the size of the project increases so does the probability of problems and failure. Many articles and blog posts have been written about the long history of software project failure. At the time of writing this post the most recent and very public software project debacle was the healthcare.gov project. It seems as IT becomes more pervasive and essential the problems with projects may be getting worse not better.
In spite of these numbers and all too often in my experience I have found that individuals and organizations seem to have a very optimistic outlook about their own projects especially at the beginning of the project. Perhaps it’s the classic: "that won’t happen to me" attitude. Even as projects start to run into problems I have seen people especially managers not take issues seriously or ignore them all together. In some of the analysis of healthcare.gov, this was cited as one of the problems.
Risk management and risk assessment/analysis are developed areas in project management and engineering and are often discussed in software projects. Many risks will end up falling into two categories. One category is actual risks to the end product, such as unforeseen security vulnerabilities in software systems or other engineering issues that lead to flaws or critical failures of the system or components. The other is risks in the management and execution of constructing product or system.
Risk management is one of those areas where the engineering aspects and the engineering management aspects can become tightly coupled. An example can be derived from the XKCD comic "Tasks". Now the point of this comic is to demonstrate the difference between an easy problem and hard one, and presumably the conversation takes place between a manager and developer. In a risk setting, perhaps solving the hard problem is the goal of the project. So a risk might be that the research team fails to solve that problem at the end of the five years, or that it takes ten. So in a sense the task is high risk but there are team related risks, maybe the budget is too low and the team is subpar due to low salaries so they can never even solve it. Another possible scenario is that the conversation never happened and the project management and team think it is solvable in six months. This second scenario is the risk I have seen though out most of my career, the project management and team are overly optimistic or really don’t have a good understanding of the complexity of the task at hand. In some cases these types of issues seem to be due to pluralistic ignorance, usually where the developers didn’t want to contradict management.
Sadly it seems like the risks that are identified are almost peripheral to the real risks on projects. It is usually things like the hardware delivery will be delayed which will delay setting up our dev/test/prod environments and delay the start of development. While these are legitimate risks, there is always the risk of all of the unknowns that will cause delays and cost over runs, even things like developer turnover never seem to be taken into account, at least in my experience. Also there seems to no cognizance of the long term cost risks like the project was poorly managed or rushed or was done on the cheap which caused the delivered codebase to be an unmaintainable big ball of mud that will incur a much higher long term cost.
In order for software engineering to grow up and become a real engineering discipline it will need formal risk assessment and risk management methodologies both on the project management side and on the work product side. This is also an area where ideas and methodologies can likely be taken from existing work in other engineering disciplines. These methodologies will also draw from probability and game theory.
References and Further Reading
- Officials Were Warned About Health Site Woes
- Red Flags: How Politics and Poor Management Led to the Meltdown of HealthCare.gov
- Senate details HealthCare.gov crash
- HealthCare.gov Diagnosis: The Government Broke Every Rule Of Project Management
- HealthCare.gov's fatal mistake
- The Staggering Impact of IT Systems Gone Wrong
- Why Do Projects Fail?
- Gartner Survey Shows Why Projects Fail
- Study: 68 percent of IT projects fail
- The Non-Existent Software Crisis: Debunking the Chaos Report
- Why Software Projects Fail and How to Make Them Succeed
- The Standish Group Report CHAOS Report
- The scariest software project horror stories of 2012
- 2013 IT Project Success Rates Survey Results
- 14 Surprising Project Management Statistics
- FAA’s Modernization Program: Clear Skies, or Still In Heavy Turbulence?
- Anatomy of an IT disaster: How the FBI blew it
- Why Software Fails
- The Long, Dismal History of Software Project Failure
- CIO analysis: Why 37 percent of projects fail: New research identifies five important reasons that projects fail
- IT Project Failure Rates: Facts and Reasons