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On the origin and the descent of managing services. We put meat on the bones.

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Kanban in the Time of Corona

23 March 2020 by Robert Falkowitz

corona virus

I went to the supermarket yesterday and was delighted to see a standard kanban practice was implemented there. Attempting to limit the density of the shoppers in the store, you had to wait at the entry for a card—in fact, a kanban card—before entering. At the exit, you returned the card, enabling another entry to […]

Filed Under: Kanban Tagged With: kanban card, queue management, WIP limit

Visualizing uncertainty

15 January 2020 by Robert Falkowitz 1 Comment

gradient chart of expected disk model life

In this age of visual management, Bayesian reasoning, machine learning and other statistical methods, it is increasingly important to understand how certain we are about the “facts” and how to visualize that uncertainty.

Filed Under: Visualization Tagged With: bias, box plot, buckets, complex adaptive system, continuous visual encoding, error bar, gradient chart, histogram, Hubbard, hypothetical outcome plot, Kahneman, probability density function, saturation, statistical control chart, systematic error, Value suppressing uncertainty palette, violin plot

Why Use Information Visualizations?

3 January 2020 by Robert Falkowitz Leave a Comment

visualization as high bandwidth

Visualizations are but one channel among many for com­mu­ni­cat­ing messages. What are its particular advantages? In addition to describing many of the benefits of information visualizations, I end this article with a few caveats regarding their difficulties or misuse.

Filed Under: Visualization Tagged With: correlation coefficient, fMRI, statistical control chart, variance, visual bandwidth, visual channels, visual field, visual memory

Information Visualization Glossary

29 November 2019 by Robert Falkowitz

A glossary of information visualization terms as used in this series of articles

Filed Under: Visualization

Information Visualization and Color

29 November 2019 by Robert Falkowitz Leave a Comment

color wheel

In the early days of digital computing and personal com­put­ing, our tools were largely monotone: screens with green or orange cha­rac­ters against a black field and dot-matrix printers whose ribbons had but a single color. As color screens and printers became common, so did the color capabilities of the soft­ware applications we use. I think […]

Filed Under: Visualization Tagged With: analogous colors, color, color scheme, cultural significance, emotional significance, hue, logo, luminosity, map visualization, palette, perception, shades

Information Visualization and Biology

25 November 2019 by Robert Falkowitz 2 Comments

image processing

Some information about how we see, or how we do not see, is useful to understand various techniques used on creating information visualizations.

Filed Under: Visualization Tagged With: achromatopsia, acuity, blindness, braille, color blindness, dyslexia, fish-eye magnifier, focal point, fovea, lens, perceptual processor, retina, rods, transduction, venn diagram, visual image store

Information Visualization or Data Visualization?

21 November 2019 by Robert Falkowitz 3 Comments

Data visualization communication model

It is useful to distinguish between “data visualizations” and “information visualizations”. How do they differ and how can this distinction help us make more effective visualizations?

Filed Under: Visualization Tagged With: bias, data visualization, decision-maker, ethics, information visualization, rhetoric

Demand Management: Chimæra, Selkie or Sphinx?

2 September 2019 by Robert Falkowitz 1 Comment

What is demand management? Sometimes it seems like a chimæra, other times like a selkie and yet other times like a sphinx.

Filed Under: Demand management Tagged With: core service, demand, demand shaping, project, service level package, service request, supply, support service

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