Friends said that Mr. Kato had recently put an alarm system in his house and was killed by an acquaintance, someone who had been inside several times before and was seen by neighbors on Wednesday.

Just imagine if changing the light in your room requires you to change the switch also. Would you care to purchase and set up such a system in your house?

The system would be accessed by 4 to 7 in-house users and by 1 to 5 outside users from each of 20 to 30 companies (although a future version of the system could support thousands of online users).