Architecture, Design, and Framework

Codeproject has a nice article on the subject..(does not fully answer your question, but a nice read)

http://www.codeproject.com/KB/architecture/WhatIsAFramework.aspx

In a nutshell, I would put the above three in the following bucket (this is just my interpretation)

- Architecture (satisfies various stakeholders by providing relevant views of the system and includes non functional and infrastructural decisions)

- Design (specific to a requirement. How does the proposed solution meets the functional (in general) requirements of the system)

- Framework (is a reusable software artifact).

Hope this helps.