We do a lot of work with companies that make products for the healthcare industry. One of the recurring challenges we take on is helping companies figure out how to connect emotionally with their customers - often doctors, nurses, and healthcare executives. One useful conceptual framework is Emotional Design, pioneered by Don Norman in a book by the same name (Don was a psych. professor and mentor of mine at UCSD a few decades ago, and is one of those very smart and practical guys). His framework can help achieve connection when designing medical devices, developing public health programs, or shaping healthcare services. Don's Linked In profile summarizes the framework this way:

 "The three kinds of design, the better to ensure enjoyable, pleasurable results. Visceral Design emphasizes appearance. Behavioral design emphasizes function, understandability, and the sheer joy of handling, touching, hearing, and using a well-designed product. Reflective design is about pride of ownership, about image, and the role of brands."

Here's an old TED video in which Don explains his thinking that led to the book.

More and more, I think marketing is all about connecting on an emotional level. Call it heart connection. So how do you know if your design is on the right emotional track?

Apply our think/feel/do test. For every feature of your product, program, or service, force your team to articulate what it should make the user think, and feel, and do. Then do the research to see if the features achieve the intended objectives, especially the feeling or emotional objective. If yes, you're on the right track. If not, back to the drawing board. For when design connects on an emotional level, it is astounding.

P.S. For the theorists among us: Given that the Emotional Design framework grew out of the classic ABC model  (affect, behavior, and cognition) to understand how attitudes are formed, our simple think/feel/do test is well-aligned with its principles. 

Image source: http://cpaprotectplus.com/blog/2011/03/warning-signs-of-an-unhealthy-heart-th...