article thumbnail

Kanban History: Origin & Expansion Across Industries

ProjectManager.com

Kanban history has informed everything from manufacturing to software development. For those unsure what kanban is, we’ll first explain the kanban system and then go into kanban history from its development to its uses in manufacturing, project management and software development.

article thumbnail

Why Johnny Can't Estimate? (Update)

Herding Cats

There is a discussion of the conjecture that estimates are a waste, estimates can't be done, estimates are evil, estimates must be stopped immediately. In our domain of engineered systems, there is a broad range of problems, complex issues, approaches to solving problems. In all cases, we start our work with.

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Estimating Accuracy Mathematics

Herding Cats

In the estimating business, like many things in project management, there is confusion about principles, practices, and processes. A good estimation approach should provide estimates that are within 25% of the actual results, 75% of the time. Software Engineering Metrics and Models. Dunsmore and V.Y.

article thumbnail

Estimating Tools and Resources

Herding Cats

Tools and resources for cost and schedule estimating, when you here estimates are hard, we're bad at estimating, estimates are a waste, estimates are misused All those statements are fallacies. iceaaonline.com International Cost Estimating and Analysis Association. link] NASA Cost Estimating Handbook.

article thumbnail

The Ontological Fallacy of No Estimates

Herding Cats

We can make decisions in the presence of uncertainty without estimating the outcome of that decision on our probability of success. Any criticism of the NO Estimates statement is met with being blocked from the discussion. Any criticism of the NO Estimates statement is met with being blocked from the discussion.

article thumbnail

Why Johnny Can't Estimate?

Herding Cats

Since all risk comes from uncertainty - reducible (Epistemic) and irreducible (Aleatory), estimating is a foundation of all we do. There is no discussion of the conjecture that estimates are a waste, estimates can't be done, estimates are evil, estimates must be stopped immediately. illities are a waste.

article thumbnail

Estimating the Risk

Herding Cats

. - Peter Drucker (1975) Management (From The Principles of Software Engineering , Chapter 6, Tom Glib, 1988). Managing in the presence of risk - and the uncertainty that creates the risk - requires we make risk-informed decisions. Without these estimates, there is no risk management. And as Tim Lister reminds us .