Category Archives: Software

Monitoring System Health and Availability, and Logging: Part 4

One more piece of context must be added to the discussion I’ve written up here, here, and here, and that is the place of these operations in the 7-layer OSI communications model. The image above is copied from and linked … Continue reading

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Monitoring System Health and Availability, and Logging: Part 3

Now that we’ve described how to sense error states and something about how to record logging information on systems running multiple processes, we’ll go into some deeper aspects of these activities. We’ll first discuss storing information so errors can be … Continue reading

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Monitoring System Health and Availability, and Logging: Part 2

Continuing yesterday’s discussion of monitoring and logging, I wanted to work through a few specific cases and try to illustrate how things can be sensed in an organized way, and especially how errors of various types can be detected. To … Continue reading

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Monitoring System Health and Availability, and Logging: Part 1

Ongoing Monitoring, or, What’s Happening Now? Any system with multiple processes or machines linked by communication channels must address real-time and communication issues. One of the important issues in managing such a system is monitoring it to ensure all of … Continue reading

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Designing and Documenting Inter-Process Communication Links

I’ve touched on the subject of inter-process communication previously here and here, but now that I’m charged with doing a lot of this formally I wanted to discuss the process in more detail. I’m sharing this in outline form to … Continue reading

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A Simple Discrete-Event Simulation: Part 91

I started thinking about the design of processes that require resources and realized there are a lot of ways I could go with this, so I thought I’d back up and think it through in writing. Let’s begin with a … Continue reading

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A Simple Discrete-Event Simulation: Part 90

This evening I attended the DC IIBA Meetup on the subject of process mapping, which is obviously an area in which I have some experience. Since I’ve reached a natural break in writing about pure business analysis subjects I’m going … Continue reading

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Cross-Browser Compatibility: My Website Animation, Part 2

Digging into yesterday’s problem more I found references to a procedure called font boosting, and a number of ways to potentially control it or turn it off. Font boosting has to do with making the text larger by default on … Continue reading

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Cross-Browser Compatibility: My Website Animation, Part 1

The introductory animation on my website has been a source of annoyance for me for some time. It never scaled properly on Android devices. It worked fine on every other browser I was able to test (IE, Edge, Firefox, Chrome, … Continue reading

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Generic Sensor API

On Wednesday I attended a Meetup hosted by Pittsburgh Code & Supply. This particular event was hosted by Brian Kardell (see also here) and was formally titled with the prefix “[Chapters Web Standards]:” I think to indicate that the talk … Continue reading

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