George Box lecture on Statistical Design in Quality Improvement at the Second International Tampere Conference in Statistics, University of Tampere, Finland (1987).
Early on he shows a graph showing the problems with American cars steady over a 10 years period. Then he overlays the results for Japanese cars which show a steady and significant decline of the same period.
Those who didn’t get to see presentations before power point also get a chance to see old school, hand drawn, overhead slides.
He discusses how to improve the pace of improvement. To start with informative events (events we can learn from) have to be brought to the attention of informed observers. Otherwise only when those events happen to catch the attention of the right observer will we capture knowledge we can use to improve. This results in slow improvement.
A control chart is an example of highlighting that something worth studying happened. The chart will indicate when to pay attention. And we can then improve the pace of improvement.
Next we want to encourage directed experimentation. We intentionally induce informative events and pay close attention while doing so in order to learn.
Every process generates information that can be used to improve it.
He emphasis the point that this isn’t about only manufacturing but it true of any process (drafting, invoicing, computer service, checking into a hospital, booking an airline ticket etc.).
He then discussed an example from a class my father taught and where the students all when to a TV plant outside Chicago to visit. The plant had been run by Motorola. It was sold to a Japanese company that found there was a 146% defect rate (which meant most TVs were taken off the line to be fixed at least once and many twice) – this is just the defect rate before then even get off the line. After 5 years the same plant, with the same American workers but a Japanese management system had reduced the defect rate to 2%. Everyone, including managers, were from the USA they were just using quality improvement methods. We may forget now, but one of the many objections managers gave for why quality improvement wouldn’t work in their company was due to their bad workers (it might work in Japan but not here).
He references how Deming’s 14 points will get management to allow quality improvement to be done by the workforce. Because without management support quality improvement processes can’t be used.
With experimentation we are looking to find clues for what to experiment with next. Experimentation is an iterative process. This is very much the mindset of fast iteration and minimal viable product (say minimal viable experimentation as voiced in 1987).
There is great value in creating iterative processes with fast feedback to those attempting to design and improve. Box and Deming (with rapid turns of the PDSA cycle) and others promoted this 20, 30 and 40 years ago and now we get the same ideas tweaked for startups. The lean startup stuff is as closely related to Box’s ideas of experimentation as an iterative process as it is to anything else.
Related: Ishikawa’s seven quality control tools
He also provided a bit of history that I was not aware of saying the first application of orthogonal arrays (fractional factorial designs) in industry was by Tippett in 1933. And he then mentioned work by Finney in 1945, Plackett and Burman in 1946 and Rao in 1947.
RSS Feed
Out of Touch Executives Damage Companies: Go to the Gemba
Posted on August 20, 2014 Comments (0)
When your customer service organization is universally recognized as horrible adding sales requirements to customer service representatives jobs is a really bad practice. Sadly it isn’t at all surprising to learn of management doing just that at our largest companies. Within a system where cash and corruption buys freedom from market forces (see below for more details) such practices can continue.
Such customer hostile practices shouldn’t continue. They shouldn’t be allowed to continue. And even though the company’s cash has bought politically corrupt parties to allow such a system to survive it isn’t even in the selfish interest of the business. They could use the cover provided by bought-and-paid-for-politicians-and-parties to maintain monopolistic pricing (which is wrong ethically and economically but could be seen as in the self interest of a business). But still provide good service (even while you take monopolistic profits allowed with corrupt, though legal, cash payments).
Of course, Adam Smith knew the likely path to corruption of markets made up of people; and he specifically cautioned that a capitalist economic system has to prevent powerful entities efforts to distort markets for individual gain (perfect competition = capitalism, non-competitive markets = what business want, as Adam Smith well knew, but this is precisely not capitalism). Sadly few people taking about the free-market or capitalism understand that their support of cronyist policies are not capitalist (I suppose some people mouthing those words are just preaching false ideas to people known to be idiots, but really most don’t seem to understand capitalism).
Anyway, this class of protected businesses supported by a corrupt political and government (regulators in government) sector is a significant part of the system that allows the customer hostility of those politically connected large businesses to get away with a business model based on customer hostility, but wasn’t really what I meant to write about here.
Comcast executives have to know they are running a company either rated the worst company in the country or close to it year after year. They, along with several others in their industry, as well as the cell phone service providers and too-big-to-fail-banks routinely are the leaders of companies most reviled by customers. Airlines are also up their for treating customer horribly but they are a bit different than the others (political corruption is much less of the reason for their ability to abuse customers for decades than is for the others listed above).
Leaked Comcast employee metrics show what we figured: Sell or perish [Updated]
Training materials explicitly require a “sell” phase, even in support calls.
So what is going on here? Most people can easily see this is likely a horrible practice. It is a practice that a well run company theoretically could pull off without harming customers too much. But for a company like Comcast to do this it is obviously going to be horrible for customers (same for all those too-big to fail banks, cell phone service providers and other ISPs and cable TV providers).
Lets just pretend Comcast’s current leadership executives were all replaced with readers of the Curious Cat Management Improvement blog. And lets say that for now you are suppose to focus on improving the policies in place (while thinking about policy changes for later but not making them yet).
Continue reading →
Categories: Customer focus, Data, Management, Psychology, Systems thinking
Tags: bad management, business, commentary, curiouscat, Customer focus, customer service, Economics, executives, gemba, Google, government, internet, leadership, management, Psychology, regulation, respect for people, sales, targets