Informatics 223 Applied Software Design Techniques Lecture 6 Duplication of course material for any commercial purpose without the explicit written permission of the professor is prohibited.

Today Expert practices The data models The papers Onward First design exercise

Experts test Experts are skeptical Experts simulate continually Experts draw examples alongside their diagrams Experts test across representations Experts prototype concepts Experts involve the user Experts are alert to evidence that challenges their theory

Experts reflect Experts curtail digressions Experts retain their orientation Experts think about what they are not designing Experts re-assess the landscape Experts invest now to save effort later

The data models Tell us about the data models itself what do we see? Tell us about the process of findings the data models Tell us about the value of the data models

The papers

Onward Identify whether and how naming play a role in your system, and bring a printed copy documenting your findings to class next week Be prepared to talk about your findings Be prepared to talk about the process of identifying your findings Be prepared to talk about the value of your findings

Onward No class May 21 Read all of the papers listed on the web site for May 28 Prepare two questions, observations, or assertions about the papers and their overall content (printed, with name and student id)

First design exercise – structure In a team of 4-5, spend two sessions of 1½ to 2½ hours each designing at the whiteboard Be mindful of the expert practices Videotape your sessions

First design exercise – deliverables Produce a document detailing your design as it exists at the end of the second session what are the design decisions so far what is still left to do no designing after the two sessions are done, incomplete designs are ok Document, with seven short video snippets, when and how you exhibited certain expert practices while you worked at the whiteboard DVD or memory stick (to be returned) a document that indexes/explains the snippets

First design exercise – prompt Design ClimbingRoutes, an app that: allows mountain climbers to contribute new climbing routes to an ever-expanding database of such routes allows mountain climbers to select, view, and navigate a climbing route ClimbingRoutes is primarily meant to be a visual app

First design exercise – due date May 28, at the beginning of class

First design exercise – grading Design product innovativeness of functionality implementability understandability Design process expert practices