1. [adj]  (usually of children) someone who behaves in a manner that the speaker believes is correct; "a well-behaved child"
2. [adj]  (usually of children) someone who behaves in a manner that the speaker believes is correct; "a well-behaved child"

1. [primarily MS-DOS] Said of software conforming to system interface guidelines and standards. Well-behaved software uses the operating system to do chores such as keyboard input, allocating memory and drawing graphics. Oppose ill-behaved.

2. Software that does its job quietly and without counterintuitive effects. Especially said of software having an interface spec sufficiently simple and well-defined that it can be used as a tool by other software. See cat.

[Jargon File]