You already use logic models If you use "if, then" reasoning, then you're using a logic model. Writing down a logic model facilitates understanding and communication.
Coming soon: online tool to build your simple logic model in under 10 minutes.
External Resources The W.K. Kellogg Foundation published an excellent guidebook on logic models. Here's an example from that source of a high-level logic model: Community Healthcare Logic Model
A simple tutorial with audio is available here. We particularly recommend the "If Then" section, #11. We think it belongs at the beginning, but since this was written by another organization, that's not our call.
The non-profit group Innovation Network provides an online logic model tool. This is comprehensive, at the expense of requiring more time to complete. Registration is required.
Wikipedia - Logic Model article, with references to applications in - organizational assessment (e.g., Malcolm Baldridge Award) - strategic planning - program planing and evaluation - performance measurements (e.g., balanced scorecards, KPIs) - process improvement (e.g., TQM, Six Sigma)