Peter loved his chocolate chip cookies, but he liked this conversation with Trish and Nan even more. Holding his hands over the side of his chair to brush the cookie crumbs off them onto the ground, he added "And his discussion of wishful thinking was really insightful."
Nan broke off a tiny chunk of her cookie, ate it, and sipped her coffee. "Mmmm, I thought so too," she said. "Knowing that we fall into these fallacy traps because of our humanness made me more accepting of it, less guilty."
Trish was puzzled. "Yeah, but how does that help the project?"
"That's just it," said Nan. "Knowing that the fallacies are part of being human makes it easier to acknowledge these errors when we make them."
Peter finished Nan's thought. "And that way we can own up to them faster, maybe even before they do any damage."
Fallacies aren't just false. Because they have a deep connection to what we are as human beings, they'll never go away. Here's Part III of a little catalog of the fallacies of project management. For Part II, see "Nine Project Management Fallacies: II," Point Lookout for December 14, 2005, and for Part IV, see "Nine Project Management Fallacies: IV," Point Lookout for January 11, 2006.
- The Fungibility Fallacy
- The Fungibility Fallacy holds that each person produces one hour of output in one hour, and that we can substitute people for one another. Terms that suggest this fallacy are man-month headcount and FTE.
- Often, only a few people can perform certain tasks. Using the project management tools that distinguish the skills of large numbers of unique individuals takes time and effort, and even then they produce somewhat fictitious results.
- And running "lean and mean" makes the problem worse. If you count the cost of delays and lost market windows due to overloading key people, running a little "fatter and kinder" might actually be more profitable.
- The Linearity Fallacy
- Fallacies have
a deep connection
to what we are
as human beings - This fallacy holds that the human effort required to execute a project scales in proportion to project attributes such as project size or total budget.
- Not only do operating costs per unit of output grow rapidly with project size, but the converse is also true: costs decline unexpectedly slowly as we scale the project down in size. This happens because we have difficulty abandoning control processes as we move down in size. We lose in both directions.
- Project management is an inherently nonlinear activity. The complexity of an effort grows not in proportion to the effort, but combinatorially with the size of the effort, following the growth in the number of possible person-to-person interactions with increasing team size.
These two fallacies both arise because of our hopes and wishes. We long for a world where we can substitute any person for any other; for a world where doubling resources halves the schedule. But longing doesn't make it so. In the next and final installment of this series we'll look at fallacies that arise from failures of critical thinking. First in this series Next in this series Top Next Issue
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Related articles
More articles on Project Management:
- Toxic Projects
- A toxic project is one that harms its organization, its people or its customers. We often think of toxic
projects as projects that fail, but even a "successful" project can hurt people or damage
the organization — sometimes irreparably.
- The Risky Role of Hands-On Project Manager
- The hands-on project manager manages the project and performs some of the work, too. There are lots
of excellent hands-on project managers, but the job is inherently risky, and it's loaded with potential
conflicts of interest.
- How to Make Good Guesses: Strategy
- Making good guesses — guessing right — is often regarded as a talent that cannot be taught.
Like most things, it probably does take talent to be among the first rank of those who make conjectures.
But being in the second rank is pretty good, too, and we can learn how to do that.
- Planning Disappointments
- When we plan projects, we make estimates of total costs and expected delivery dates. Often these estimates
are so wrong — in the wrong direction — that we might as well be planning disappointments.
Why is this?
- Cost Concerns: Scale
- When we consider the costs of problem solutions too early in the problem-solving process, the results
of comparing alternatives might be unreliable. Deferring cost concerns until we fully understand the
problem can yield more options and better decisions.
See also Project Management and Critical Thinking at Work for more related articles.
Forthcoming issues of Point Lookout
- Coming May 1: Antipatterns for Time-Constrained Communication: 2
- Recognizing just a few patterns that can lead to miscommunication can reduce the incidence of miscommunications. Here's Part 2 of a collection of antipatterns that arise in communication under time pressure, emphasizing those that depend on content. Available here and by RSS on May 1.
- And on May 8: Antipatterns for Time-Constrained Communication: 3
- Recognizing just a few patterns that can lead to miscommunication can reduce the incidence of problems. Here is Part 3 of a collection of antipatterns that arise in technical communication under time pressure, emphasizing past experiences of participants. Available here and by RSS on May 8.
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