Edward Tufte shreds a PowerPoint slide concerning the possible tile damage on the Columbia. My favorite point: The slide features 6 different levels of hierarchy used to classify, prioritize, and display 11 simple sentences. And then there’s the little bullet (5th level down) that says that the debris that struck the Columbia was 640 times larger than the data used to test the model. Nothing like a critical detail given fifth priority.
Edward Tufte rules.
He gave out a pamphlet with this dissection at his presentation here in Boston a few weeks back. I was so glad when he pointed out the use of a word to mean VERY different things (in this example, the five uses of the words "significant" or "significantly")
Dear lord do I run into stuff like that all time time.
JF - Thanks for posting this topic.
As a Boeing engineer I am quite embarrassed by the slides and appalled at how the information was presented. I am also not very surprised. I have seen quite a few crappy presentations. Fortunately the audience is usually experienced enough to pick it apart and draw out the useful information. It is impossible to tell just from the slides what the full dynamic was during the briefing where this was presented. That's assuming it was actually presented and not just emailed.
I went to that link this morning and found it incredibly interesting.
However, upon returning this afternoon, I noticed that a few responses at the bottom have now been deleted. It was a post and a few replies critiquing Tufte's approach. It wasn't flaming by any means. The poster had a few good points and stated their case politely, and someone rebutted them quite nicely.
Anyways, they're gone now. Dammit. Once I see that going on, I loose all respect for the site/person.
Still, good read.
Fortunately the audience is usually experienced enough to pick it apart and draw out the useful information.
indi: Although I am not an engineer, I will say that the Tuftean response to your comment is that if what you say is true, then the author of the slide should not make the reader work so hard to follow the reasoning presented. At the same time, the author should not condescend to the reader either.
upon returning this afternoon, I noticed that a few responses at the bottom have now been deleted.
Darrel: I have to say that I don't find that surprising. Tufte doesn't take criticism very well, constructive or not.
Jim: I agree wholeheartedly. The better presenters have simple clear charts with more detailed backup data when needed. Too many engineers get lost in the details and create what we call "eye charts". Then they proceed to read off of the charts instead of showing they really know the topic.
I think a big issue that involves information design and useability is that these charts are often dual purpose. They are used in a live presentation and then passed on in hardcopy and electronically as a standalone package. It is hard to get the two uses to coexist effectively. Does anyone have any suggestions?
> Tufte doesn't take criticism very well, constructive or not.
Well, he just dropped a few notches on my respect meter, then.
indi: As far as the re-purposing of presentations in both hard- and softcopy formats goes, that may be the $64,000 question. I think the only answer is to create two different versions; and that of course is anathema to the workflow of the people who are always hacking around on presentations at the 11th hour.
Here are two resources I can point you to (one is free, the other is relatively cheap):
1. GE has posted their corporate identity documents on the web, and this is their section on presentations (there is a PDF file for download as well):
http://www.ge.com/identity/marketing/presentations.html
2. Seth Godin has a PDF for sale on Amazon for $1.99 called "Really Bad PowerPoint (and How to Avoid It)." I think his best point is that the stuff that goes up on the screen (as opposed to the hardcopy) should be more emotional than intellectual.
Personally, I would love to see/hear Tufte talk about the War information graphics on most TV stations now. I was watching FOX news (please don't ask why... just flipping around) & the graphics/colors/layout was so awful.
As far as the re-purposing of presentations in both hard- and softcopy formats goes, that may be the $64,000 question.
Well, one of Tufte's Mantras is that CRTs are simply not up to snuff when it comes to adequate resolution to present information clearly.
After going to his presentation, I found a new respect for paper. Sometimes you just need to go with the paper.
So, with that said, PDF is great. If they can't read it on screen, it forces them to print it onto paper...a much higher resolution medium.
Darrel: Display resolution is a big problem with technical charts especially. I have been in more than one meeting where the engineer put up an absolutely unreadable tables of tiny numbers with tiny labels and said "I know you can't really read this, I'm just putting up this slide to show how complex the analysis is."
Seriously.
It is hard to get the two uses quite a few crappy presentations
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Understanding PowerPoint: Special Deliverable #5
is an excellent article on the purpose of Powerpoint presentations.
At WWDC, I listened to Apple representatives make some excellent points about taking the time to build a 100%-compliant Aqua application, and I think all developers need to look beyond the code and listen to what the folks at Apple have to say