not for beginners or the faint of heart, but fundamental
Suchman's book is a classic (and about to be updated!), but that doesn't mean there aren't any caveats. Suchman's analysis is deep, her writing thick (incredibly terse, dense prose that may require a good dictionary), and her perspective is still controversial.
This book doesn't tell you how to "do" very much - it's not a step-by-step method book. This is a mix of theory and method that will force the engaged reader to reflect on his/her own work.
This book stands as perhaps the best example of a socio-cognitive analysis of technology, and is therefore correctly treated as fundamental in HCI and related fields. For a researcher who is interested in the relationship between technology and people, or technology and the world, this is a must-read. AI and HCI stumble into each other frequently, but this is a book for both audiences.
As for the debate of plans vs. situated action, well, to some extent I find it irrelevant. Suchman never claims that plans don't exist or are unimportant. Even if your work is completely plan-oriented - say, AI planning (e.g. path planning), you should read this book - it will challenge some of your assumptions, and force you to grapple with problems that exist when technology interacts with the world.
That having been said, this is not an introductory reader on HCI, AI, or any other topic. Suchman's terse language frustrates even some very intelligent grad students and PhD's, and again, this book is deep. It's a book that has challenged me as I've read and re-read it over the years, and I treasure it.
A classic work on the application of social science to HCI
This book is not for everyone. Suchman makes connections between AI, HCI and the sociological areas of ethnomethodology and conversation analysis (EM/CA) - connections that have been very visible and influential in subsequent HCI and CSCW research. If you don't have any background in these sociological areas, it will take some work to read it.
That said, I think this book is reasonably accessible, and certainly more so than has been suggested by some reviewers. Suchman was writing to counter a prevalent mindset in the AI community of the time. Basically, Chapters 2 and 3 set up a technical and philosophical strawman (human action as the execution of plans), Chapters 4 and 5 provide an explanation of some necessary theoretical background, and the rest is an analysis of interaction in the context of these theories that serves to knock down the strawman. It's fairly hard to have a more clear and logical organization than that. There's no part of that organization that could be left out and still have the book make sense.
Furthermore, by comparison, the theoretical parts of this book should be easier for the uninitiated to read than are Garfinkel's writings on ethnomethodology (or most CA writings by almost anyone). They may or may not do justice to those ideas, but that's a separate question. And for someone with any background at all in these areas (though as suggested by other reviewers, this does not include a huge number of people), this book should be a very straightforward read.
The bottom line for me is that this book (like Paul Dourish's "Where the Action Is") is an interdisciplinary gem that has the potential to change how you think about how people approach technology. There aren't that many books for which that can be said.
Read only the last chapter and the conclusion.
If you do read it, read only the last chapter and the conclusion.Summary:
Keep in mind that the title of the book is Plans and Situated Actions: The Problem of Human Machine Communication. The majority of the book is the 'plans and situated actions' part.
The basic idea of the book is that humans don't really function using plans. Plans, as the author defines them, are something akin to diagrams for behavior, explicating specific activities. Instead, the author argues that humans behave based on 'situated actions'. Situated actions are, "the view that every course of action depends in essential ways upon its material and social circumstances. Rather than attempting to abstract action away from its circumstances and represent it as a rational plan, the approach is to study how people use their circumstances to achieve intelligent action." (p. 50).
In other words, people have a goal in mind. To achieve their goal, people may or may not set up a plan (the author discusses how this could be culturally relative, but I think this is a weak point in her argument because she doesn't really do a good job of distinguishing one type of plan from another), but what is important is that in trying to achieve their goal they are placed in situations that determine their actions. This could also be said: people behave in specific situations based upon the factors that affect the situation.
Let me give an example... Let's say your goal is to get to the dentist. You set up a 'plan' for getting to the dentist prior to leaving. Your plan would include a calculation of the time and the route and your mode of transportation. The situated action approach would say that you can only understand the individual's behavior in terms of their actions in specific situations. So you get in your car and on the way to the dentist's office you run into a detour due to construction. If you had to follow your plan, you couldn't make it to the dentist. But when you leave the road and find an alternate route, this behavior is only understood in terms of situated action. Does that explain it? Wow, and it only took me a few paragraphs.
The author discusses plans and situated actions in terms of conversations, cognitive science, ethnomethodology, and a whole bunch of other theoretical perspectives and technical jargon. In the end she finally gets to the human and machine communication. This is also where the book begins to get interesting. She studied how people interacted with copy machines that were trying to give people instructions. Her studies, undoubtedly helped the people at Xerox figure out ways to improve their copy machines and instructions for them. Like I said above, the last chapter and the conclusion are the most interesting parts of the book. Skip the rest and read them.
My Comments:
For someone so concerned with understanding how people communicate this book is horribly written and nearly unintelligible. The first six chapters are theory and examples of the theory that are completely unrelated to machines. The book finally gets to human and machine interaction after nearly one hundred pages of inchoate theory. And the human and machine interaction stuff isn't really all that interesting - especially since it predates the 1990s, is talking about interaction with copying machines, and has nothing to do with computers.
The author should have chosen a specific approach and then stuck to it. Perhaps she could have tripled the length of the book and gave clear and understandable explanations of the theories (though I am pretty much convinced after having read the book that this would be impossible because of the author's writing style) and used examples that applied only to human and machine interaction. Or she could have just jumped into her findings that dealt with human and machine interaction. The first approach could have been 'dumbed down' to make the book readable by the general public. The second approach could have served a more academic market.
The book reads something like a doctoral dissertation (it very well may be one, I don't know) in that she gives some information on each theory, but not really enough to give someone a good understanding of it - something like a literature review - and cites examples of research that are completely unrelated to the topic of the book to illustrate the theories . The she presents her methods, results, and conclusion.
I guess my problem is that I was expecting a book that would actually be enjoyable to read, interesting, and would focus on human and machine communication. If that is what you are looking for, look somewhere else. This book is nearly impossible to understand. I read the book for a graduate level course in Ethnomethodology and I didn't really understand it very well. By no means am I an expert in Ethnomethodology, but I'm pretty sure I know more about it than probably 95% of the world's population (keep in mind I don't know very much at all), so I'm pretty confident most people would find this book nearly impossible to decipher.
Important Beyond Its Ostensible Field
This is an outstanding book. The insight that showed the power of the idea of `situated action' goes far beyond the realm of interactive design or even human computer interaction in its entirety. It is a fundamental solution to the problem of facing complexity and contingency. Its implications are widespread. This book was published in the 1987 when during the last days of classical AI. This is one of the seminal books that showed the inadequacies of the classical formulation. Indeed it showed a new and much more way of achieving the goals that classical AI set for itself and failed. Despite its age the ides in this book are still fresh and important.. Absolute certainty is impossible and the quest for it is costly and futile. Instead of trying to overcome the uncertainty that is in the world, the system designer should embrace it and use it as a tool to solve the problems that it creates.
This is a book that should be read by anyone who has set the task for themselves of developing any system that must function in an uncertain environment. In short this is a book that should be read by anyone who is developing a system that will have to function within the real world
Fundamental reading
This is THE book to start with if anybody is interested in studying interaction design. In a time everybody calls themselves an interaction designer, it's a highly recommended reading to learn there's more to interaction than simply large colourful buttons... Based on an ethnomethodological perspective, Suchman does a brilliant job in analysing users' interactions with an advanced Xerox machine, and putting forth an interesting critique of classical AI concepts. It's highly recommended for anybody interested in Human-Computer Communication and interaction design.