The technology that powers these online dating sites ranges from incredibly an easy task to incredibly complicated.

The technology that powers these online dating sites ranges from incredibly an easy task to incredibly complicated.

Unsurprisingly, eHarmony has perhaps one of the most sophisticated information centers. Joseph Essas, vice president of technology, claims the organization shops 4 terabytes of information on some 20 million new users, all of who has done a 400-question mental profile (eHarmony’s founder is a medical psychologist).

The organization utilizes proprietary algorithms to score that data against 29 “dimensions of compatibility” — such as for instance values, character styles, attitudes and passions — and match customers utilizing the most effective leads for a long-lasting relationship.