
Here are a few posts from the Curious Cat Management Blog back in 2006.
See more management posts from July 2006, June 2006, all of 2006.

Here are a few posts from the Curious Cat Management Blog back in 2006.
See more management posts from July 2006, June 2006, all of 2006.
The Curious Cat Management blog carnival highlights recent management blog posts 3 times each month. The posts generally focus on the areas I have focused on in the Curious Cat Management Guide since 1996 (Deming, agile software development, systems thinking, lean manufacturing, customer focus…).
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Guest post by Bradley Jones
Almost a hundred years ago R. A. Fisher‘s boss published an article espousing OFAT (one factor at a time). Fisher responded with an article of his own laying out his justification for factorial design. I admire the courage it took to contradict his boss in print!
Fisher’s argument was mainly about efficiency – that you could learn as much about many factors as you learned about one in the same number of trials. Saving money and effort is a powerful and positive motivator.
The most common argument I read against OFAT these days has to do with inability to detect interactions and the possibility of finding suboptimal factor settings at the end of the investigation. I admit to using these arguments myself in print.
I don’t think these arguments are as effective as Fisher’s original argument.
To play the devil’s advocate for a moment consider this thought experiment. You have to climb a hill that runs on a line going from southwest to northeast but you are only allowed to make steps that are due north or south or due east or west. Though you will have to make many zig zags you will eventually make it to the top. If you noted your altitude at each step, you would have enough data to fit a response surface.
Obviously this approach is very inefficient but it is not impossible. Don’t mistake my intent here. I am definitely not an advocate of OFAT. Rather I would like to find more convincing arguments to persuade experimenters to move to multi-factor design.
Related: The Purpose of Factorial Designed Experiments – Using Design of Experiments – articles by R.A. Fisher – articles on using factorial design of experiments – Does good experimental design require changing only one factor at a time (OFAT)? – Statistics for Experimenters
The management improvement blog carnival is published 3 times a month (though not this month – May 10th was missed) with select recent management blog posts. Curious Cat also collects articles on improving management practices, you can subscribe via RSS to new article additions.
See more photos from my trip to Utah, including Antelope Island State Park in the Great Salt Lake.
Respect for people sure sounds great. And most of us have plenty of experience with organizations that dis-respect people continuously (both employees and customers). So what does respect for people mean at the core? For me:
A system that lets people take joy in work and fixes root causes instead of finding people to blame.
A huge part of the disrespect shown by companies to employees is through direct action. But another huge part is forcing people to deal with horribly bad processes that just haven’t been fixed. Most TSA employees have to feel horrible about what they are being required to do. This will often then result in them lashing out in other ways (because they try to hide from those feelings [no-one wants to consciously go to work everyday knowing what they are doing is counter to their core beliefs] – but in doing so they just deflect the feelings into other places). Dealing with these bad processes drives employees crazy year after year.
For me creating a climate where people can take pride in what they do everyday is the key. It isn’t being “nice” to everyone. What matters is providing a workplace where intrinsic motivation flourishes. Eliminating bad practices (paying attention to HiPPO instead of the best idea, huge amounts of paperwork instead of productive action, inflexible and overly prescriptive policies, not trusting employees, providing managers that don’t know how to manage people, embarrassing employees in from of others…) is necessary but insufficient.
Beyond eliminating bad practices though we need to provide a climate where people can flourish. This requires providing meaningful work (people need to know how they contribute, how what they do fits into providing value). Providing managers that know how to manage people is a huge step in the right direction, but often the systems to promote people have little success at selecting those that will excel in this area.
Another practice to respect people, is to give them the training and resources to do what you ask them to do. It isn’t respectful to expect people to take heroic action to overcome the companies poor practices. I can go on and on, and do in my posts about respect for people.
Related: The Two Pillar of the Toyota Way: continuous improvement and respect for people – Hire People You Can Trust to Do Their Job
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The management blog carnival highlights recent management blog posts 3 times each month. The posts generally focus on the areas I have focused on in the Curious Cat Management Improvement guide since 1996 (Deming, lean thinking, agile software development, respect for people, leadership…).
Sometimes micro-managing works. That doesn’t mean it is a good strategy to replicate. If you benchmark Apple you might decide that you should have a tyrannical obsessive involved CEO who is directly involved in every detail of products and services. After all Apple is now the second most valuable company in the world with a market capitalization of $324 billion (Exxon Mobil is the top at $433 billion) and a huge part of that is Steve Jobs.
Nice quote from How to beat Apple
An interesting point, and really it doesn’t matter if it is completely true it illustrates a point that Steve Jobs is the rare leader that helps by being completely involved in nearly every detail. And at the same time he provides strategic leadership rivaled by very few others. But if you try to benchmark this (simplistically – as most benchmarking is done) you will fail. This works with Steve Jobs and maybe a handful of other people alive today. But with most leaders and organizations it would fail completely.
On another point Jason Kottke makes, I would normally suggest the opposite approach:
I think you may well be better off doing the opposite and countering Apple’s secrecy with openness. It would depend on your organization, but, I think you might be better off trying to exploit Apple’s weakness instead of trying to do what they do well. Now things are never this simple but on a cursory level I think that is where I would look.
Google now has a market cap of $171 billion, Apple is almost double that – just 3 years ago Apple first exceeded Google’s value.
Related: Leadership is the act of making others effective in achieving an aim – The CEO is Only One Person – Jeff Bezos Spends a Week Working in Amazon’s Kentucky Distribution Center – Respect for People – Dee Hock on Hiring
Multivariate experiments are a very powerful management tool to learn and improve performance. Experiments in general, and designed factorial experiments in particular, are dramatically underused by managers. A question on LinkedIn asks?
The aim needs to consider what you are trying to learn, costs and potential rewards. Weighing the various factors will determine if you want to aim to keep results within specification or can try options that are likely to return results that are outside of specs.
If the effort was looking for breakthrough improvement and costs of running experiments that might produce results outside of spec were low then specs wouldn’t matter much. If the costs of running experiments are very high (compared with expectations of results) then you may well want to try designed experiment values that you anticipate will still produce results within specs.
There are various ways costs come into play. Here I am mainly looking at the costs as (costs – revenue). For example the case where if the results are withing spec and can be used the costs (net costs, including revenue) of the experiment run are substantially lower.
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The Curious Cat Management Blog Carnival selects recent management blog posts 3 times each month. You may submit a link to the management Reddit to have it considered for inclusion in our carnival
Problems with Management and Business Books
We really need to change how we improve the practice of management. Far too often management strategies are just the latest fad from some new book that successfully marketed an idea. The marketing effectiveness of a book, or consultant, has very limited correlation to their ability to improve management, in my experience. It is often true that they make very good keynote speakers, however. So if you want an entertaining keynote speaker looking at the authors of the best selling business books may make sense. But if you want to improve management, I don’t see much value in doing so.
Year after year we have the same basic business books repackaged and marketed. They present a magic bullet to solve all your problems. Except their bullet is far from magic. Usually it does more harm than good.
They amazingly oversimplify things to make their bullet seem magic. This also fails miserably in practice. There are usually not good management options that are simple and easy. Usually the answers for what should be done is a lot of “it depends,” which people don’t seem to like.
Authors fail to place their book (or their trademarked strategy they hope turns into a movement/fad) in the appropriate context. Most books just take a few good ideas from decades old practices add a new name and leave off all references to the deep meaning that originally was there. I guess quite often the authors don’t even know enough about management history to know this is the case; I guess they really think their minor tweak to a portion of business process re-engineering is actually new. This also would make it hard for them to place their ideas within a management philosophy.
On a related note, I find it interesting how different the lean manufacturing and six sigma communities are online (and this has been going on for more than a decade). One of the problems with six sigma is there is so little open, building on the practices of six sigma. Everyone is so concerned with their marketing gimmick for six sigma that that don’t move forward a common body of work. This is a serious problem for six sigma. Lean manufacturing benefits hugely from the huge community of those building openly on the body of knowledge and practice of lean. You can find 10 great lean manufacturing blogs without trouble. You will have difficulty finding 3 good six sigma blogs (and even those spend most of the time on other areas – often lean thinking).
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