The value of ESN is undeniable in enhancing employee collaboration and communication, but many ESN implementations have failed to deliver on their promise for various reasons, such as lack of integration with third-party business software and poorly planned deployments, a Microsoft official said.

Microsoft's approach will be to increase enterprise social features in SharePoint, as part of an integrated, organic collaboration platform that also includes Lync, Outlook and its Office productivity applications, said Jared Spataro, Microsoft's senior director of SharePoint product management.

“We believe social technologies will be incredibly important in transforming the way people interact with organizations. But we also think much of the discussion happening in the industry today, led by the pure play, standalone social vendors, is somewhat misguided,” he said.

“Social shouldn’t be implemented just for social's sake, but for business sake. It shouldn’t just replicate Facebook for the enterprise, but rather focus very squarely on task completion, on helping people get their jobs done," Spataro added.

Spataro declined to give specifics about how this vision and strategy will be manifested in Microsoft collaboration products, but said that SharePoint has been gaining enterprise social features since its 2003 version, continued adding them in its 2007 and 2010 versions, and will pursue a "people-centric" model going forward.