In the book Drive Business Performance the authors refer to Wayne Eckerson (Deploying Dashboards and Scorecards, July 2006) with a nice overview.
|Purpose||Measures performance||Charts progress|
|Users||Managers, staff||Executives, managers, staff|
|Updates||Real-time to right time||Periodic snapshots|
|Top-level display||Charts and tables||Symbols and icons|
Is it important to differentiate? Not really, both present a structured view of the goals and objectives for the organization. Key is to drive efficiency and help them focus on what matters.