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Author Archives: Jim Bird

Jim Bird
Jim is an experienced CTO, software development manager and project manager, who has worked on high-performance, high-reliability mission-critical systems for many years, as well as building software development tools. His current interests include scaling Lean and Agile software development methodologies, software security and software assurance.

Don’t You Know that Support is the Most Important Part of a Developer’s Job?

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Agile development – because you are building working software faster and delivering it incrementally – forces development teams to face a common, fundamental problem: how to balance the work of developing new software with the need to support a system that is already being used in production, whether it’s the legacy system that you’re replacing, or the system that you ...

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Don’t let Somebody Else’s Technical Debt take you Under

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There’s a lot written about technical debt: what technical debt is and the different kinds of technical debt, how to avoid taking on debt unnecessarily when designing and coding and changing code, how much technical debt is costing your organization, and why and how and how much and when to pay these debts off. But all of this ignores massive ...

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Code Reviews Change Over Time

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We’ve been doing code reviews for about 4 years now. Getting Started with Code Reviews From the start, developers would help each other out, look at code when someone asked, or sometimes a lead or a senior developer would step in and review code if we were seeing problems in testing or if someone had just joined the team and ...

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The Real Cost of Change in Software Development

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There are two widely opposed (and often misunderstood) positions on how expensive it can be to change or fix software once it has been designed, coded, tested and implemented. One holds that it is extremely expensive to leave changes until late, that the cost of change rises exponentially. The other position is that changes should be left as late as ...

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This is how Facebook Develops and Deploys Software. Should you care?

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A recently published academic paper by Prof. Dror Feitelson at Hebrew University, Eitan Frachtenberg a research scientist at Facebook, and Kent Beck (who is also doing something at Facebook), describes Facebook’s approach to developing and deploying their front-end software. While it would be more interesting to understand how back-end development is done (this is where the real heavy lifting is ...

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Getting Application Security Vulnerabilities Fixed

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It’s a lot harder to fix application security vulnerabilities than it should be. In their May 2013 security report, WhiteHat Security published some discouraging findings about how many application security vulnerabilities found in testing get fixed, and how long it takes to fix them. They found that only 61% of serious security vulnerabilities get fixed, and that on average, it ...

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Looking for Answers at Agile 2013

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I went to Agile 2013 last week in Nashville to look for answers on how Agile development ideas and practices could help more with high integrity, high assurance development; scale to handle large projects and programs; and improve the working environment for mature, high performance teams. The Sessions There was a lot going on, with over 200 sessions, informal workshops, ...

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Maintaining Software Sucks – and what we can do about it

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If you ask most developers, they will tell you that working in maintenance sucks. Understanding and fixing somebody else’s lousy code is hard. It’s tedious. And it’s frustrating – because you know you would do a better job if you were given the chance to do it over and do it right. I enjoy maintaining code I’ve built. It’s my ...

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Agile Development leads to Alzheimer’s

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Iterative development and design helps you to reach your way towards understanding what the customer really needs, to try out new ideas, evaluate designs, experiment, respond to feedback and react to changing circumstances. Everything gets better as you learn more about the domain and about the customer and about the language and technologies that you are using. This is important ...

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Design Patterns after Design is Done

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Design Patterns are a useful tool when you are designing a system, an effective shorthand for communicating and sharing design ideas and a way to build consistency into the code – if people understand them and follow patterns properly. I’m not interested in arguments over whether design patterns are good or not, or which patterns are good and which ones ...

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