Workshop discussions

To help make discussions more worthwhile and focused, we would like to ask you to read two other papers, although you are welcome - indeed, encouraged! - to read them all.

Over the course of the two days we will discuss each paper and will ask you to speak to your assigned papers (for not more than 5 minutes) to draw out points you thought were interesting or controversial or needed clarification.

Participants	Assignment
Sherman Alpert	discusses	Borchers	and	Lin & Landay
Jan Borchers	discusses	Lin & Landay	and	Henninger, Keshk & Kinworthy
James Lin & James Landay	discuss	Henninger, Keshk & Kinworthy	and	Molina & Hernández
Scott Henninger, Mohamed Keshk & Ryan Kinworthy	discuss	Molina & Hernández	and	de Paula & Barbosa
Pedro Molina & Javier Hernández	discuss	de Paula & Barbosa	and	Pribeanu & Vanderdonckt
Maíra de Paula & Simone Barbosa	discuss	Pribeanu & Vanderdonckt	and	Gaffar, Sinnig, Javahery & Seffah
Costin Pribeanu & Jean Vanderdonckt	discuss	Gaffar, Sinnig, Javahery & Seffah	and	Schümmer
A. Gaffar, D. Sinnig, H. Javahery & A. Seffah	discuss	Schümmer	and	Tidwell
Till Schümmer	discusses	Tidwell	and	van Welie
Jenifer Tidwell	discusses	van Welie	and	Alpert
Martijn van Welie	discusses	Alpert	and	Borchers

You might like to think about some of the following, as you read, either as "conceptual issues" or for implications they may have for pattern-related tools, their design or use.

Issues to consider

• What is the relationship between abstraction and detail in a pattern? Is there a distinguished level of abstraction for a good pattern? And how might it be reliably identified?
• What is the relationship between power and simplicity in patterns?
• What is complex about HCI design, and what point (or level) of complexity do patterns address?
• Do HCI patterns need to follow an Alexandrian problem-solution format, or would a “descriptive” format be more appropriate to this domain?
• What is the nature of invariance in HCI and how do we identify it?
• What is the relative role of domain- and design- patterns in HCI?
• What do designers need from design representations? Are there usability issues for patterns?
• How should patterns and pattern languages evolve?
• Can (have) patterns be used in participatory design situations? Or are they only for other HCI designers?
• Can (have) patterns been used in cross-disciplinary design situations?
• How do patterns relate to other HCI approaches and models e.g. style guides, cognitive dimensions, design rationale?