In 2015, after only thirteen years, the Washington State Department of Corrections finally realized that it had inadvertently released around 3,200 inmates to early release since 2002. The error in question existed in the system used to calculate sentence reductions for good behavior, which resulted in miscalculations in the drops.
It is just one in a long and depressing history of software bugs. Most IT experts agree that failures happen much more often than they should. Furthermore, losses are universally free from prejudice: they occur in all countries, large and small companies, in commercial, non-profit, and government organizations, and regardless of your status or reputation. In terms of the taxpayer and shareholder money wasted, business and social costs of these failures and the investments that cannot be made run into billions of dollars a year.
The problem is only getting worse the more IT is used. According to a 2017 Project Management Institute (PMI) report, 14 percent of IT projects fail. However, that number only represents the total number of failures. Of the projects that did not die outright, 31 percent did not meet their targets, 43 percent exceeded their initial budgets, and 49 percent fell behind.
The biggest tragedy is that software failures are predictable and avoidable for the most part. But, unfortunately, most organizations do not view failure prevention as an urgent matter, even though that vision risks damaging the organization and, in some cases, even destroying it. Understanding why this attitude persists is not just an academic exercise; it has enormous implications for business and society.
The amount and type of technology investments can vary between industries and sectors. For example, the average business spends nearly 4%t of revenue on information technology, and those heavily reliant on IT, such as finance companies, spend more than 7% on IT. In other words, IT is now one of the most significant corporate expenses outside of employee costs. Much of that money goes to hardware and software upgrades, software license fees, and others. But a large part goes to new software projects to create a better future for the organization and its customers.
It is not uncommon to think that when a software project fails, it jeopardizes the prospects of an organization. However, if the flaw is big enough, it can steal the company’s entire future.
Around the world, it’s hard to say how many software projects fail or how much money is wasted as a result. However, if you define failure as the total abandonment of a project before or shortly after delivery, and if you accept a conservative 5% failure rate, billions of dollars are wasted each year on faulty software.
Of course, those billions do not reflect projects that exceed their budgets, which is the case with most projects. Nor does it reflect projects delivered late, which is the majority. It also doesn’t factor in the opportunity costs of starting over once a project is abandoned or the expenses of bug-ridden systems that must be repeatedly reworked.
There’s also the cost of litigation from customers suing vendors over poorly implemented systems. When you add up all these additional costs, the annual tab for failed and problem software runs conservatively between $ 60 billion and $ 70 billion in the United States alone.
Among the most common factors:
Most failures, however, can be attributed to a combination of technical, project management, and business decisions. Each dimension interacts with the others in complicated ways that exacerbate project risks and problems and increase the likelihood of failure.
The earlier the omission is detected and corrected, the better. It is like knitting a sweater. If you spot a missing stitch right after you, do it, you can untangle some thread and move on. But if you don’t catch the mistake until the end, you may need to unravel the entire sweater to redo that stitch.
Suppose software developers do not detect its omission until the final test of the system (or worse, until after the system has been implemented). Then, the costs incurred to correct the error are likely to be many times greater than if they had detected it while still working on the initial sales process.
And unlike a missing stitch on a sweater, this problem is much more challenging to identify; programmers will only see that errors appear, which can have various causes. Even after the original error is corrected, they must change other calculations and documentation and retest each step.
Studies have shown that software specialists spend 40 – 50% of their time on avoidable rework rather than value-added work, which works that gets done right the first time. Once a piece of software hits the field, the cost of correcting a bug can be 100 times higher than it would have been during the development stage.
If mistakes abound, rework can start to flood a project, like a boat in a storm. What’s worse, attempts to correct one mistake often introduce new ones. It’s like you’re rescuing that boat, but you’re also creating leaks. If too many errors occur, the cost and time required to complete the system become so great that moving on is pointless.
Although it is impossible to ensure that the project is 100% perfect, there are working techniques with which any errors that may arise can be minimized to a minimum. For a project to be successful, it needs to have at least the following elements:
We, as humans, cannot avoid that in all projects. There is one error in the code, but we can control how many and severe they are. Thus, we must keep in mind that avoiding mistakes is equal to or even more important than the amount of work that gets done or, in other words, quality is better than quantity.
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