Application Design
I see application design as a step further than Information Architecture, but in this case you are also considering organization of the data in the database, how & what information is collected, how it is displayed, how it is retrieved, what the website's function is, what the naming system is for files, etc. Most of the application design I have done comes from my time at Siegelgale and at Icnivad; but, with my foray into PHP, I have been able to design AND create smaller applications for clients.