Aligning audience expectations

Today I attended a workshop and noticed that my expectations and the presenter's goals were not the same which caused me to question the flow of the presentation. I gave the following feedback:

• What problem are you solving, what are the alternatives, what is unique about your solution?
• Tell the audience what to expect, what they will get at the end of the presentation, e.g. "to get familiar with Yocto concepts and workflow, to build a minimal Linux image".
• More importantly, tell what NOT to expect, e.g. "we will not build a full Linux distribution from scratch because it will take more than one day"
• What is expected of the audience, e.g. you should know how to install Linux packages.