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Functions of logic models
Logic models support the specification of ideas and their internal and external communication; implicit assumptions of cause-effect relationships should be made explicit, and a common understanding should be reached about which measures can be implemented with which short-term, medium-term and long-term goals. Besides this general function of goal clarification, logic models can be developed with specific functions or key aspects:
- Theory of change models: A clear statement of how and why a project or program will succeed is especially important when funding applications are submitted. Logic models like these emphasise underlying assumptions about needs or the problem situation and the reasoning behind the measures.
- Activity models: Accurate presentation of steps helps planning and management of a project or program. These models focus on the implementation process.
- Result models: Linking the activities to the expected results and precisely specifying the short-term, medium-term, and long-term goals makes it easier to evaluate a project or program. These models put the link between measures and results at centre stage.
Examples
If you click on the link below, you will find a short example project followed by example models based on it: Logical models - Examples
Background information
- For any given project or program there is never just ONE "correct" model! One specific logic model always provides just one of many possible perspectives; it is never possible to take into account all the influencing factors.
- Logic models change over the course of time! The progress of a project or program is often also determined by environmental conditions which cannot be foreseen or controlled. Thus, as you adapt your project or program to general conditions, the model changes as well.
- On the website of W.K. Kellogg Foundation you can find a detailed guide about how to develop logic models: http://www.wkkf.org/default.aspx?tabid=134&CID=-1&CatID=284&NID=212&LanguageID=0&Letter=W (there: W.K. Kellogg Foundation Logic Model Development Guide, pdf, 1.3 MB; external)
