Apr8

Some more JunkChart

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Martin Theus posts here an example of poor charting or “junk charts”. I’ve had the opportunity to work with many organizations as a management consultant, and it’s sad to report that is more the norm than the exception to see charts like that one in the workplace.

Feeding my bad habit of thinking anytime anytime I see a chart how would I restate it to make it cleaner, here is how I would do it. On top, the original chart, below a proposed improvement.

How an obfuscated pie chart can be replaced with a cleaner bar chart

The key questions, whenever one draws a chart, are “Who is my audience?” and “What is the message I want to communicate to them?”. For such chart, I would imagine the audience are the users of a software system for which we are reporting the different sources of errors”, and the underlying message, most likely, is what are the most relevant sources, so we can fix them.

In the original chart, transparency, 3D and color are used, but they are not adding any new information. The pieces of the pie do not show any meaningful order, either. The audience will have to look at the callouts to see which category corresponds to which piece of the pie, and their work is going to be harder by having to follow the callout lines that in some cases converge.

What makes the second chart better?

  • The improved chart uses sorting as a way to help the audience. The largest sources of errors appear first.
  • Once the data is sorted, it uses the Pareto principle to focus on the main sources of errors, removing from the audience’s eyes a lot of unnecessary detail. Today’s interactive media allows to drill-down into details with a click. Printed presentations can always have backup charts. Simple is beautiful. The Pareto principle is one of those “business commonsense” things that almost everyone has heard about, to the point is almost a cliche, yet people fail to appreciate how powerful it is.
  • The use of color is non-gratuitous. Color is very powerful. Most people can differentiate between colors without effort. But they can also get quickly overwhelmed if many colors are used in a chart. Think twice before adding a new color to your chart. Is it communicating something?
    The improved chart has some visual effects, like drop shadows and some color gradient, to make it more appealing. However they don’t work against how easily the message will be understood by the audience, they don’t leave out people with difficulties to tell colors apart, and they will not break when you make a black and white printout of the chart.

Apr8

Kerkorian keeps trying… this time is Chrysler again

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One thing that can’t be denied is Kerkorian’s persistence to get part of the action in the US automotive industry.

First, his attempt to take Chrysler private in the early nineties followed by the 2003-2005 drama of a Kerkorian-initiated federal lawsuit in which he charged that he had been deceived by DaimlerChrysler management, winning his support for the $36 billion deal in 1998 by portraying it as a “merger of equals” when, in fact, it was a takeover of Chrysler by Daimler-Benz.

More recently, when he then tried to broker an alliance between General Motors, Renault of France and Nissan of Japan, and replace Rick Wagoner by Carlos Ghosn.

Now his investment arm, Tracinda Corporation, made a $4.5 billion cash offer yesterday for the Chrysler Group.

The offer looks to obtain winning the exclusive right to negotiate with DaimlerChrysler and a deal with the United Automobile Workers union that could mean worker concessions.

The U.A.W. did not comment on the Tracinda bid, but its president, Ron Gettelfinger, previously said that he preferred to see the company remain part of Chrysler rather than be sold to an investor. Gettelfinger sits on the DaimlerChrysler supervisory board, which will ultimately decide Chrysler’s fate.