Relationships between human resources and enterprise 2.0, or rather the use of social software”, are very complicated. Whatever the way you consider the issue, you always have to deal with HR.
There are two reasons to that :
The first is that many people came to take an interest in enterprise 2.0 because their primary issue was an HR one. In this case, tools were seen as catalysts for new desirable practices that were hard to put to work because of barriers (time / space / tools) social software helped to get rid of.
The second is that the others, those who were passionate about tools but didn’t care much about how large organizations internal concerns, finally realized that they could not avoid bumping into HR people, who, most of times, were not very social software savvy and had a suspicious attitude. I don’t even mention that, in many cases, HR are most often askek to keep things as the are instead of behing innovative. What shows its limits today as we have to admit how the human dimension matters in today’s crisis.
Experience teach us that when HR were deeply involved things were successful (for example Cisco did a great job on leadership and appraisal) and, when they were not, they were taken for troublemakers.
In fact that’s not that simple.
You can find the "original" french version of this blog here

