Even though investment slowed down toward the end of the year, 2015 was a banner year for HR technology — the best since 2001 for U.S. startups and a year that included a billion-dollar quarter. Depending on whose numbers you look at, investment in HR and HCM startups was north of $2 billion for the year. What should industry watchers expect in 2016 as this capital begins working its way into the system?