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David B. Black
See this for details: https://www.linkedin.com/pub/david-black/a2/2b4/49b
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I've read thousands of job requirements for computer programmers over the years, and written or edited quite a number. I’ve interacted with hundreds of software groups and seen the results of their work. I’ve spent a couple decades cranking out code myself in multiple domains. There are a couple near-universal problems with job requirements that, if changed, would improve the quality of software groups and their productivity. Of course, it’s not just the job requirements and what the hiring people do – it’s also the managers, from the CEO down. They also have to not just support but champion the... Continue reading
Posted 5 hours ago at The Black Liszt
Why is a monolithic software architecture evil? Simple. There is no need to explain “why,” because monolithic is not evil. Or even plain old bad. In fact it’s probably better than all the alternatives in most cases. Here’s the story. The Cool, Modern Programmers Explain The new, modern, with-it software people come in and look at your existing code base. While admitting that it works, they declare it DOA. They say DOA, implying “dead on arrival.” But since the software apparently works, it can’t be “dead,” except in the eyes of the cool kids, as in “you’re dead to me.”... Continue reading
Posted 7 days ago at The Black Liszt
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So you want to build optimal software, do you? What’s “optimal” in software, anyway? Is it building the software that’s needed quickly and well, with no bugs? Is it building software that’s easy to enhance, adding new features – including ones you never thought of – with minimal fuss and bother? Is it building software that’s easy to scale endlessly with little trouble? How about all of the above, all at once? Yup, that would be optimal, sure enough. I’ve described in general terms about optimal software. Here’s a map, a specific example, of how to get there. Going to... Continue reading
Posted Jun 20, 2020 at The Black Liszt
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The power of Occam-optimality, a.k.a. occamality, can be difficult to appreciate if your head is awash in myriad software buzzwords, and explaining it in software terms can make understanding it challenging to anyone unfamiliar with those terms. So it makes sense at this point to explain the core concept in a different context. Let’s think about the design of physical things, the kind of things that require discrete manufacturing, have bills of material, and so on, for example a washing machine. If every section of the washing machine were designed by someone different, each designer may call for a particular... Continue reading
Posted May 26, 2020 at The Black Liszt
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Experts and anointed authorities of various kinds, both academic and commercial, have been the front lines of resistance to innovation for centuries, up to the present. They are the firewall keeping what they consider to be rogue ideas outside the protected environments they oversee, protecting them from bad influences that their naïve but innocent charges might inadvertently adopt. It’s a good thing they’re on the job – otherwise things would be chaos and nothing would get done! This pattern is raised to a new level when the subject isn’t some specific business domain like healthcare, but the process of innovation... Continue reading
Posted May 15, 2020 at The Black Liszt
The FDA wants to keep us safe. They want the drugs we take to be what they’re supposed to be, and they want the medical equipment used on us to be safe and without fault or error. We all want that! However, the way they choose to achieve the goal for the software that is an essential part of most medical devices is deeply flawed, and leads to huge expense with only a small number of companies willing and able to follow the FDA’s regulatory regimen for software. The net result is medical equipment and software (which is increasingly a... Continue reading
Posted May 6, 2020 at The Black Liszt
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Lots of people would like the credit for establishing, once and for all, the core, immutable principle of optimal software design/architecture – the method for measuring which, among an infinite number of embodiments of software requirements, is provably the best among them. I am one of the crowd that would love to take credit! Alas, I and my competitors have been beaten to the punch, by a mere 700 years or so, by a guy named William of Occam. As it turns out, the software crowd is, as usual, late to the party: loads of luminaries in other fields have... Continue reading
Posted Mar 24, 2020 at The Black Liszt
When we look at a body of software, how do we judge it? Clearly, there are strong opinions on this subject – but there is no general consensus on the standards by which a body of code should be judged! This is shocking and unacceptable! For most normal people, i.e., people who aren’t software developers, software is “good” if is doesn’t crash and pretty much does what you want most of the time. What more could anyone want? Well, how about changing the software. This is one of the BIG things that makes software different from pretty much anything else... Continue reading
Posted Mar 10, 2020 at The Black Liszt
The 2017 Equifax data breach is in the news again because of the recent indictment of four Chinese government hackers for committing the break-in. How did they pull off such a feat? From China? As it turns out, Equifax’s defenses were so pathetic that a couple of bright nerd wise guys anywhere could have done it. By contrast, the Equifax hacking could not possibly happen at a car dealership – unless the dealership were run by government and corporate cybersecurity experts. Understanding why that’s so tells you everything you need to know about the expertise of the experts. The 2017... Continue reading
Posted Feb 29, 2020 at The Black Liszt
Nearly everyone who talks about fast and reliable application building seems to talk about the process (Agile etc.) and/or a couple architectural things (object-oriented, micro-services, etc.). From what I can tell, these haven’t led to any break-throughs in application velocity or predictability. However, it’s clear that there are methods for high-velocity application growth. A wide variety of small, motivated groups have re-invented them over the years. I have had the privilege of observing these groups and their methods, and seen the impact when they add or drop velocity-aiding methods. Here is an overview of some of the methods I’ve seen... Continue reading
Posted Feb 24, 2020 at The Black Liszt
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Everyone who’s even vaguely in touch with the headlines knows there was a problem getting results from the Iowa caucuses – a problem blamed on a software app built to automate reporting voting results. No one, including the maker of the app, disputes there was a serious software problem. Most of the commentary has focused on steps that should have been taken to assure that the app worked better than it did. The Wall Street Journal quoted various “experts” who stated – authoritatively, no doubt – that “testing could have prevented” the problems. What’s not being said is the emperor-has-no-clothes... Continue reading
Posted Feb 10, 2020 at The Black Liszt
In my work on Wartime Software, I describe the methods used by small groups of smart, motivated programmers to compete with large, established groups using standard software techniques – and win. I haven’t invented those methods; I’m simply collecting, organizing and describing what such groups of software ninjas actually do. Similarly, after observing the internal structure of many bodies of software over a long time, patterns emerge about the internal structures that yield competitive advantage, and tend to take market share. These internal structures are a kind of continuum rather than an either/or: a group that is farther along the... Continue reading
Posted Feb 3, 2020 at The Black Liszt
There is lots of knowledge about software user interfaces -- standards, models, experts and the all rest. But there's a problem: there is no difference, the way things are now, between designing a UI for someone using a piece of software for the first time, and someone who uses it over and over. This results in astounding waste of time for the heavy users of software. It's long since time to fix this glaring hole in UI theory! Most UI’s are built to optimize the initial experience of the person using it. The assumption is made that the person is... Continue reading
Posted Jan 27, 2020 at The Black Liszt
This post describes a little-known concept for understanding and creating software architecture that small groups use to defeat large, powerful incumbents and nimble competitors. It is one of a small number of powerful, repeating patterns that help us understand and predict the evolution of software. Understanding these patterns can help entrepreneurs direct their efforts; if they do it well, they greatly enhance their chances of success. Understanding the patterns can also help investors choose to invest in groups that are walking a path to success. Evolution of Applications Towards Abstraction on a Platform One of these patterns is the stages... Continue reading
Posted Jan 21, 2020 at The Black Liszt
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The principles underlying computer automation are clear and strong. They account for most of the automation we see. They tell us clearly what will happen, why it will happen, and what the benefits will be. What the principles do NOT tell us is who will first apply automation to what process in what sector. Understanding the principles lets you predict the rough order of the sequence of automation. The principles are extremely simple. Perhaps that's why they're rarely stated and appear not to be taught in schools or understood by practitioners. So much the better for people who want to... Continue reading
Posted Jan 14, 2020 at The Black Liszt
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The few people who are familiar with the term "luddite" think that a luddite is an unfortunate but stupid person who fights against advancements that make things better, while clinging bitterly to their crappy, low-end jobs. "Luddites" in this common view, are uneducated, progress-preventing people who need to be moved to the side so that society can be improved. The reality is that, in most cases, luddites were highly skilled craftsmen performing difficult and challenging jobs. It's not that much different today. Luddites are often highly educated professionals and managers who are convinced they bring value to their complex jobs... Continue reading
Posted Jan 6, 2020 at The Black Liszt
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While the success patterns laid out in the prior posts in this series may seem clear in the abstract, applying them in practice can be hard, because nearly everyone who thinks or talks about AI (these sets over overlap very little, sadly) takes a different approach. http://www.blackliszt.com/2018/03/getting-results-from-ml-and-ai-1.html http://www.blackliszt.com/2018/04/getting-results-from-ml-and-ai-2.html http://www.blackliszt.com/2018/04/getting-results-from-ml-and-ai-3-closed-loop.html I previously discussed the application of the principles to healthcare, with specific examples: https://www.blackliszt.com/2018/08/getting-results-from-ml-and-ai-4-healthcare-examples.html I've discussed the application of the principles to fintech, with a focus on anti-fraud: https://www.blackliszt.com/2019/12/getting-results-from-ml-and-ai-5-fintech-fraud.html In this post, I'll show how things can play out with a stellar example in fintech chatbots. Computers talking with People --... Continue reading
Posted Dec 10, 2019 at The Black Liszt
While the success patterns laid out in the prior posts in this series may seem clear in the abstract, applying them in practice can be hard, because nearly everyone who thinks or talks about AI (these sets over overlap very little, sadly) takes a different approach. http://www.blackliszt.com/2018/03/getting-results-from-ml-and-ai-1.html http://www.blackliszt.com/2018/04/getting-results-from-ml-and-ai-2.html http://www.blackliszt.com/2018/04/getting-results-from-ml-and-ai-3-closed-loop.html I previously discussed the application of the principles to healthcare, with specific examples: https://www.blackliszt.com/2018/08/getting-results-from-ml-and-ai-4-healthcare-examples.html In this post, I'll show how things can play out with a stellar example in fintech anti-fraud. The Use of ML in Fraud Detection Credit card fraud is a difficult, ever-evolving problem, not unlike cyber-security in general.... Continue reading
Posted Dec 3, 2019 at The Black Liszt
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As with most computer software issues, cybersecurity is badly misunderstood by the vast majority of people, including, sadly but as usual, most computer professionals. The result of this is that the vast majority of people have wrong ideas about the source and methods of security breaches and how they can be prevented. Unfortunately, sometimes these wrong ideas have major consequences. A Typical Phishing Attack Phishing is a kind of attack on a user by a bad guy. The bad guy sends the target an email that contains something to tempt the target to click on it. Clicking on the hyperlink... Continue reading
Posted Nov 18, 2019 at The Black Liszt
The 2019 US edition of Money 20/20 is a wrap. All of us who attended are recovering – and digesting. Money 20/20 is now an established event – even though the first one was just seven years ago, in 2012! You might think it would be getting stodgy and repetitive by now, with bosses sending their underlings. Not so! Among the over 7,000 people attending were an amazing number of top, big-company executives – along with hundreds of startups, investors, and companies ranging from emerging to established. All the tech firms you’d expect also attended. So what happened? Anything new?... Continue reading
Posted Nov 12, 2019 at The Black Liszt
“Everyone” says that Facebook’s Libra is a cryptocurrency. Long before Libra had been imagined, Bitcoin pioneered and established the brand new world of cryptocurrency. Bitcoin created the category, and has always been its leading exemplar. The white paper by the still-unknown Bitcoin creator and inventor spelled out his design goals and the main aspects of Bitcoin that supported those goals. Once you read and understand what cryptocurrency is, it becomes very clear that, whatever Libra may be, it is NOT a cryptocurrency. To claim that it’s a cryptocurrency is like claiming that a locked desk drawer is a bank vault... Continue reading
Posted Nov 11, 2019 at The Black Liszt
To call what is taught in the “computer science” departments of universities a “science” is a mind-game to get everyone involved to believe that what is taught meets the normal criteria for being a “science.” It doesn’t come close. Well, you might say, some of those departments are more humbly and accurately called “computer engineering.” True. At some point in the distant future, what is taught in computer engineering might rise to the level of what is taught in, say mechanical or electrical engineering. Until that goal is in sight, it would be more accurate to call the classes something... Continue reading
Posted Nov 6, 2019 at The Black Liszt
Both Microsoft and Intel are big supporters of blockchain. They think it's going to be "bigger than the internet," contributing trillions of dollars to the economy before long. At the same time, they spell out the overwhelming obstacles blockchain must overcome to reach this pinnacle of achievement. Guess what, surprise surprise, the special version of blockchain created by Intel and Microsoft is indispensable to solving the problems and achieving success! You can see their deep thinking here and here. Before diving in, I'd like to point out that the custom, private blockchain they advocate is a contradiction in terms, as... Continue reading
Posted Nov 2, 2019 at The Black Liszt
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I’ve been involved in a large number of pioneering software efforts, and I’ve lived through many tech fashion seasons. It’s very clear that the vast majority of experienced software professionals and managers would rather follow current technology fashion than actually making things better. Because of the pathetic state of software knowledge and analytics, not only do they get away with throwing away truly massive gains for their organization, no one in power has a clue what they’ve done! This happens over and over and over and over again. A few people may know there’s a vastly better approach available –... Continue reading
Posted Oct 18, 2019 at The Black Liszt