Inspired by recent events I thought it is time to revisit the premise of my private blog (“Not a Factory Anymore”). I have recently heard of the first delivery centers being called studios and as you can imagine I was happy to hear the word studio rather than factory (Link). So I thought it’s time for an update on my pet peeve by adding supporting arguments.
First of all, before you continue reading you should read Don Reinertsen’s HBR article (https://hbr.org/2012/05/six-myths-of-product-development ) who makes a brilliant case on why manufacturing is the wrong analogy for product development (and IT development ultimately is product development). He calls out that the misconception of product development as being similar to manufacturing causes a lot of problems for organisations. I will provide my thoughts on some aspects of his article where I feel I can add value, but if you only have a few minutes and have to choose, then read his article and not my blog post (no seriously – go read his article!) – his article blew me away when I first read it and I am sharing it with every IT executive I come across.
“Product development is profoundly different to manufacturing”
– Don Reinertsen
There is so much to say about this article, I could write for hours about it, but I will focus on two aspects that I want to point your attention towards because the application to IT might not be as straight forward. Both having to do with batch sizes (and batch sizes is the secret ingredient to any Agile or DevOps adoption):
Firstly the optimal batch size is determined by the holding cost (driving smaller batch sizes) and transaction costs (driving larger batch sizes). In IT the holding costs are a combination of the increasing cost of fixing a problem later in the lifecycle and the missed benefit of functionality ready but not in production. These two factors don’t change much with DevOps. What changes are the transaction costs. Deployments, Testing efforts and migration to production are all aspects that DevOps has made cheaper through automation and through using the “minimum viable process” for governance. This means that the new batch size is much smaller than before. The relationship between DevOps maturity and batch size is something that I hope people start to appreciate more.
“DevOps is not about making IT efficient, it’s about making business effective through IT.”
– Mark Rendell
The second fantastic point that Don makes, which I want to elaborate on, is about effectiveness and efficiency in the context of quality – the smaller batch sizes at fast speed might cause more defects, but these are fixed faster and the learning from it leads to a better overall outcome. As I said in many other places defects are not a bad thing as long as you find them as early as possible and use them to learn. Driving down defects is not an outcome its a side effect of better DevOps practices. With the words of a colleague of mine: “DevOps is not about making IT efficient, it’s about making business effective through IT.”
The second publication that filled me with optimism that we can bury the factory analogy soon is Gary Gruver’s “Leading the Transformation” (http://itrevolution.com/books/leading-the-transformation/ ). He also calls out that executives have to accept the fundamental difference in complexity between IT work and manufacturing. Assuming that you can plan up-front and manage IT with the same tools as manufacturing leads to inappropriate behaviors. Especially his guidance on embarking on DevOps transformations is very valuable and provides a realistic experience.
“Executives need to understand that managing software and the planning process in the same way that they manage everything else in their organization is not the most effective approach. (…) First, each new software project is new and unique, so there is a higher degree of uncertainty in the planning.” – Gary Gruver
After reading Don’s article and Gary’s book – can any executive still argue that the principles of manufacturing still applies? Do we need more evidence? Cultural change is hard and takes a long time. But hopefully the IT industry will soon be filled with application studios full of skilled, creative and motivated knowledge workers and not with factories where each developer and tester is just a cog in the machine…thank you Don and Gary for putting a satisfied smile on my face while reading your publications. I have the torch in my hands and you have given me fire – lets burn those factories down… (in a figurative sense of course)