Hcd Quotes

Often people will use their own conceptual models of the world to determine the perceived causal relationship between the thing being blamed and the result. The word perceived is critical: the causal relationship does not have to exist; the person simply has to think it is there.

The solution is human-centered design (HCD), an approach that puts human needs, capabilities, and behavior first, then designs to accommodate those needs, capabilities, and ways of behaving.

There are two ways to approach the role of new stepdad: You can go the friendly route—soft-pedal, build some trust. Don’t worry, I’m not trying to replace your dad. Or you can seize the opportunity to lead that totalitarian regime you’ve always dreamed of. I am your parent! You will respect me! Clyde opted for the latter. He immediately instated something he called Heavy Chore Day—aka, Saturday. Like Sunday Mass, attendance was mandatory but HCD lasted much longer. The whole family was up and working by 0800 and the workday lasted eight hours. Duties were segregated between men’s work (in the yard) and women’s work (in the house). If there were any holdover friends from a Friday night sleepover, they were welcome to stay, “but if you’re here, you need to contribute.” Our friends quickly learned to request early pickup times. Clyde’s vibe was all drill sergeant. “Police the lawn for anything that ain’t grass or dog shit. Shovel the dog shit. After you mow, edge the perimeter.” Half the jobs didn’t even make sense: “Move this pile of rocks to the other end of the yard. Dig a hole over here, cart the dirt in the wheelbarrow over there and make a dirt hill.

A usable design starts with careful observations of how the tasks being supported are actually performed, followed by a design process that results in a good fit to the actual ways the tasks get performed. The technical name for this method is task analysis. The name for the entire process is human-centered design (HCD), discussed

Effective design needs to satisfy a large number of constraints and concerns, including shape and form, cost and efficiency, reliability and effectiveness, understandability and usability, the pleasure of the appearance, the pride of ownership, and the joy of actual use. HCD is a procedure for addressing these requirements, but with an emphasis on two things: solving the right problem, and doing so in a way that meets human needs and capabilities.

Getting the specification of the thing to be defined is one of the most difficult parts of the design, so much so that the HCD principle is to avoid specifying the problem as long as possible but instead to iterate upon repeated approximations. This is done through rapid tests of ideas, and after each test modifying the approach and the problem definition. The results can be products that truly meet the needs of people. Doing HCD within the rigid time, budget, and other constraints of industry can be a challenge: Chapter 6 examines these issues.