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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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 Injured Teammate: II
- You're a team lead, and one of the team members is suddenly very ill or has been severely injured. How
do you handle it? Here are some suggestions for breaking the news to the team.
- Seven Ways to Get Nowhere
- Ever have the feeling that you're getting nowhere? You have the sense of movement, but you're making
no real progress towards the goal. How does this happen? What can you do about it?
- Nonlinear Work: When Superposition Fails
- Much of the work we do is confounding, because we consistently underestimate the effort involved, the
resources required, and the time required to get it done. The failure of superposition can be one reason
why we get it wrong.
- The Ultimate Attribution Error at Work
- When we attribute the behavior of members of groups to some cause, either personal or situational, we
tend to make systematic errors. Those errors can be expensive and avoidable.
Forthcoming issues of Point Lookout
- Coming December 18: The Trap of Beautiful Language
- As we assess the validity of others' statements, we risk making a characteristically human error — we confuse the beauty of their language with the reliability of its meaning. We're easily thrown off by alliteration, anaphora, epistrophe, and chiasmus. Available here and by RSS on December 18.
- And on December 25: Disjoint Awareness
- In collaborations, awareness of how our own work might interfere with the work of others is essential. Unless our awareness of others' work — and their awareness of ours — matches reality, the collaboration's objective is at risk. Available here and by RSS on December 25.
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