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Yue Pan & Erik Stolterman Indiana University Bloomington, IN, USA {panyue, estolter}@indiana.edu Pattern Language and HCI: Experiences and Expectations
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Pattern Language and HCI: Expectations and Experiences

Jun 28, 2015

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Pattern Language (PL) has been researched and developed in HCI research since the mid-80s. Our research was initiated by the question why something like PL can create such enthusiasm and interest over the years, while at the same time not be more widespread and successful? In this paper, we examine the experiences and expectations that HCI researchers who have been involved in PL research have had and still have when it comes to PL. Based on the literature review and interview studies, we provide some overall reflections and several possible directions on the use of PL in HCI.
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Page 1: Pattern Language and HCI: Expectations and Experiences

Yue Pan & Erik StoltermanIndiana University Bloomington, IN, USA

{panyue, estolter}@indiana.edu

Pattern Language and HCI: Experiences and Expectations

Page 2: Pattern Language and HCI: Expectations and Experiences

Pattern Language in Architecture Design

Page 3: Pattern Language and HCI: Expectations and Experiences

Pattern Language in Architecture Design

Pattern Language• Problem• Context• Forces• Solution

Page 4: Pattern Language and HCI: Expectations and Experiences

Pattern Language in Interaction Design

Page 5: Pattern Language and HCI: Expectations and Experiences

Pattern Language in Social Studies

Page 6: Pattern Language and HCI: Expectations and Experiences

Pattern Language in Ubiquitous Computing

Page 7: Pattern Language and HCI: Expectations and Experiences

Pattern Language in Ethnography Research

Page 8: Pattern Language and HCI: Expectations and Experiences

research question1:why has Pattern Language as an object of study created such enthusiasm and interest over the years?

Page 9: Pattern Language and HCI: Expectations and Experiences

research question2:why has Pattern Language as a tool not been more widespread and successful?

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Interviews

Page 11: Pattern Language and HCI: Expectations and Experiences

interview

We sent email to 24 PL experts.

14 experts replied.

Interviews were conducted by email or Skype.

4 experts are working for industry.

10 experts are working for academia. PL experts

Page 12: Pattern Language and HCI: Expectations and Experiences

interview

Interview questions:

1. People’s initial engagement with PL;

2. Rewards and Challenges of developing PL;

3. Why PL not been more successful;

4. Future of PL in HCI field.

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Findings

Page 14: Pattern Language and HCI: Expectations and Experiences

Challenges of Developing PL—Demand Extensive Efforts

R3: “First of all, IT IS AN IMMENSE AMOUNT OF WORK!!! First you harvest ideas for potential patterns, then you seek the evidence (examples where it was used), and then you start writing the first draft, then iterate and publish. Do that 100+ times and it will cost you more than a year of your life!”

Page 15: Pattern Language and HCI: Expectations and Experiences

Challenges of Developing PL—Applying PL in Real World

R3: “I think there is one area where the PL research is still weak and that is the area of evidence in patterns. Most patterns, including mine, use 'common sense' to argue that they are good solutions. It would be good to do more research and see to what extend they really work.”

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R10: “In contrast, computer scientists and programmers in particular are very comfortable with formalizations. So its no surprise that patterns has had success in programming where you have things like UML.”

“Designers on the other hand resist formalizations, particularly descriptive ones rather than generative or process-oriented ones like design methods.”

Challenges of Developing PL—Formalization

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Insight:PL is NOT easy to use.

Page 18: Pattern Language and HCI: Expectations and Experiences

Pattern LanguageAdvantages of Using PL—Education

R8: “As part of teacher I do. I use Jennifer Tidwell’s book in my course ‘Interacting Form’ to teach graphic students.”

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Advantages of Using PL—Representing Knowledge

R3: “Patterns could be a great way to capture design solutions and link it to characteristics of the task, user or any other part of the context of use. And so I started writing my first patterns, trying to find out how I could use the pattern 'format' to capture design knowledge.”

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Pattern LanguageAdvantages of Using PL—Design Thinking

R2: “(PL) Help people perceive the world. PL opens up people’s perceptions and awareness that people may not realize.”

“Creating PL is also interesting. Start from nothing, observation, synthesis something and bring it into very clear. ”

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Insight:Use PL to inform design thinking.

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PL Expectations and Future—Creating PL rather than Patterns

R1: “One sort of weakness in design patterns, especially if it is done by multiple distributed people in a bottom-up fashion, is a lack of a coherent pattern language.”

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Insight:

Develop PL rather than patterns.

Page 24: Pattern Language and HCI: Expectations and Experiences

PL Expectations and Future—More Evaluation

R6: “More research examining the practicalities of using PLs within actual design processes, ethnographic and empirical studies are needed.”

Page 25: Pattern Language and HCI: Expectations and Experiences

Insight:

Evaluate PL in a real design setting.

Page 26: Pattern Language and HCI: Expectations and Experiences

Discussion

Page 27: Pattern Language and HCI: Expectations and Experiences

Pattern LanguageDiscussion

We study and evaluate PL as

1. A tool and methodological approach to learn about other methods and tools in general.

2. A catalyst to understand problems, solutions, values within design and research process.

Page 28: Pattern Language and HCI: Expectations and Experiences

Design Methods Research @IU

Yue Pan & Erik Stolterman

Indiana University, USA

{panyue, estolter}@indiana.edu

NSF

Thanks!