Elsewhere, Boston-based Sociometric Solutions Inc. uses physical sensors to collect data on employees' movements and the tone of their conversations to tell managers where interactions are dipping and where employees are congregating. In San Francisco, tenXer Inc., a program for computer engineers, tracks code modifications and hours spent in meetings to help them see how their productivity stacks up against colleagues. And Boston-based Yesware Inc. helps employees track emails, monitors how many times their emails are opened, what devices recipients are using, and provides analytic reports on the email traffic of colleagues.