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  • an engine testing lab

    Why is open source content rare?

    Open source community incentives are biased to prefer developers over content creators. Open source communities are particularly prone to this failure mode. After all, the developers in the community are all doing their work for valid reasons, so why wouldn’t content creators join them? Hot take: the incentives are different. Open source development is a resume-building value

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  • The control switch panel of UNIVAC

    Supporting Ancient Software

    With another round of fixes to Windows XP, the time is ripe for bloviating about supporting ancient stuff. Every software vendor has to decide what to do about supporting what they used to ship, as well as the broader ecosystem around them. Operating systems, databases, service providers. Maximize use of your new features, minimize maintenance

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  • Flying Dodge Charger in San Francisco

    Land and Expand Packaging Decisions

    Subsets of packaged content are needed in different system classes. If you’re pursuing a land-and-expand model, then you need to have a way to expand. One way is to ship a static monolith with features turned off. Another is to ship dynamic add-ons to your base product.  Teams make these dynamic vs static decisions early.

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  • A quadrant comparing high and low complexity of need with high and low complexity of design

    What does your product disallow?

    Product design sometimes opens an interesting can of worms: things that may be possible to do, but which the designer didn’t intend. Do you hide these paths or not? Will your user ultimately be frustrated, or satisfied? The answer depends on whether your product’s design accurately sets and meets expectations for the majority of its

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  • Quadrant model of index time and search time attribute to entity decision mapping

    Entities and Attributes

    Quadrant models are useful organizing tools. Let’s use one to look at the problem of managing the attributes of entities in systems visibility. I’m not expecting to solve the problem, just usefully describe the playing field. Horizontal axis:* persistent entities with changing attributes* ephemeral entities with static attributes Vertical axis:* Set the relationship at index

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