The human mind. The physiology, psychology, and biology that affects human mental performance and productivity. In the past, the term "psychology" has been used to describe this concept on this wiki, but it has been concluded that psychology is too narrow a concept to convey the concept.
As a working definition, it generally excludes "social factors", although those may have an impact on the above. Thus, hard borders are difficult to define.
Discussion:
Wouldn't the term be better named as Bio Ware, or Brain Ware? Wet Ware is a little to broad for my tastes, as it could mean wet-as-in-beer, or wet as in peed-one's-self, or just piss-on-it.
It's a recognised term. See en.wikipedia.org 
{I've heard it before also. Otherwise, I'd recommend "squishware". -t}
Excluding "social factors" may be too limiting. The office politics and/or "marketing issues" and/or motivation techniques of an organization usually play a significant role in the options available and choices made. One must consider these when making choices and presenting options, or else they will be risking their career and the job will eventually end up going to somebody who does give attention to such. Perhaps that area goes under something like "politics-ware" or "social-ware"? Whether it should be considered part of the term Wet Ware is still open. -t
The following is moved from Top Noise Filter, where it is embedded in Lava Flow of discussion, at someone's suggestion. It needs a bit more context. -- John Fletcher
Context: I do believe software engineering is mostly about Wet Ware, and the human mind is currently a gray science. (from top) (see Top Noise Filter)
Interesting. I am giving a seminar tomorrow to my colleages in science and engineering on the topic The Adventure of Teaching Engineering. This will be based on the Dreyfus Model as set out by Andy Hunt in Pragmatic Thinking And Learning which he subtitles Refactor your Wet Ware. -- John Fletcher
Please note that this comment was on the paragraph a long way up Top Noise Filter which mentioned Wet Ware, and not anything between there and here, as the Lava Flow of text in between had not happened then. -- John Fletcher
I just coined Lava Flow and found the page already exists! The seminar went well, I am told.
May I suggest you move your comment to Wet Ware. And we may be interested in the some of the comments in terms of disagreements or agreements over its role in tool evaluation.
I am interested in what sort of tools you think are relevant. Our discussion was about models of learning, both for ourselves and our students. My personal interest is in tools which would help an individual build selfawareness by recording their thoughts about their knowledge so that they can capture it and grown in understanding. -- John Fletcher
Software is written for humans first, and machines secondly. This state of affairs isn't my doing, I'm just the messenger. The component on the human body that processes software is called "the brain". Therefore, if we want to optimize software for it's primary intended use/goal/target, then we must understand this component known as "the brain". QED. --top
Since the interface between a computer and a programmer's brain is through programming environments and programming languages, we should focus our attention -- as programmers -- on those two things.
I do not know what you mean. Please elaborate.
As programmers, what matters to us about the brain-computer interface are programming environments and programming languages. What does it mean to "understand this component known as 'the brain'"? Neurology? Irrelevant. Psychology? Mostly pseudo-science and superstition. Neither provide any insight into how to build better programming environments and languages. For that, we need to study programming environments and languages and how programmers use them, and encourage programmers to use and develop new ones and evaluate them. That is how to improve the interface between a computer and a programmer's brain.
See also: Where Psychology Matters, Programming Is In The Mind, Pragmatic Thinking And Learning, Words Used As Abstractions, The Master And His Emissary, Tops Law
See original on c2.com