DVD players, for example, are not good technologies until DVD disks become widely available. Programs that require complicated start-up routines are not as good as those that one can start with a single command. Good technology is personalized. One thing that makes a telephone useful is that you have your own telephone number. Bad technology forces you to fit its requirements.
Good technology is modular.
To a degree, this requirement is a combination of the two requirements that good technology be standardized and personalized, but modularity takes technology a step beyond either of those features. Bricks and wood are good technology, for example, because they interconnect neatly and can be assembled into custom configurations. Legos are even better because they don't require parts like nails or cement. The stereo components produced in the 1970s were good examples of modular technology. Using the standardized RCA jack, one could assemble systems with or without pre-amps, tuners, or even turntables.