Proceedings

PLoP 2014 is in cooperation with ACM.

Pattern Languages of Programs (PLoP®) conference is a premier event for pattern authors and pattern enthusiasts to gather, discuss and learn more about patterns and software development. PLoP® conferences are promoted and sponsored by The Hillside Group. The Hillside Group, through PLoP® and other activities, promotes the use of patterns and pattern languages to record, analyze, and improve software and its development, and supports any new practices that help achieve these goals.

Preliminary versions of these papers were workshopped at Pattern Languages of Programs (PLoP) ’14 September 14-17, 2014, Allerton Park / Monticello, IL, USA. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission. Copyright is held by the authors.

ISBN: 978-1-941652-01-5

Made in the USA

Welcome to PLoP 2014

Welcome to Allerton Park in Monticello Illinois (the birthplace of PLoP™) and to PLoP 2014, the 21st Conference on Pattern Languages of Programs, the premier event for pattern authors and enthusiasts to gather, discuss, and learn more about patterns, pattern writing, pattern reviewing, shepherding, software development, and collaboration.

The conference program offers a rich set of activities that promote a friendly and effective environment to share expertise, and to give and get feedback from fellow authors. The pre-conference activities start Sunday (September 14) at the Bootcamp, a day-long session for people new to patterns and/or PLoP, led by Rebecca Wirfs-Brock and Joe Yoder. The main conference starts on Monday morning (September 15).

Writers' Workshops are the primary focus at PLoP, and it will be during these that we discuss and review each others’ papers. We have four groups of six papers each, which were selected from an initial set of 35 submissions after a period of shepherding. Papers of the Writing Group will have the opportunity to be revised during PLoP under mentorship of experienced pattern writers.

We will have three keynotes: “Exercises in Programming Style,” by Cristina Videira Lopes; “Simplicity—The Road Not Taken” by Dave Thomas; and “Root cause analysis of some faults in Design Patterns,” by Ralph Johnson.

There will be four focus groups: “Future Language Workshop for the Pattern Community,” by Takashi Iba; “Data-driven Design Pattern Development (3DPD),” by Peter Scupelli; “My object can beat up your object,” by Michael John; and “Mining New Patterns by Learning from the Trenches,” by Robert Hanmer.

On Tuesday night we will be entertained by Brazilian rhythms and singing.

And we have the Games, a well-established and important activity at PLoP. The games help us relax and break the ice, exercise our body and mind, teach us to collaborate better, and reinforce a community of trust.

After the conference, the authors are strongly encouraged to further revise their papers based on the discussions at the conference. A final version of revised papers will be published by Hillside and hosted in the ACM Digital Library as the PLoP 2014 Proceedings.

We would like to thank all authors, shepherds, reviewers, and Program Committee members for their time and collaboration with PLoP 2014. Thank you!

All of these words just to say that we wish you an amazing and productive time during PLoP!

Richard P. Gabriel and Joe Yoder, PLoP 2014 co-Chairs

PLoP 2014 Conference Description

Pattern Languages of Programs (PLoP) conference is a venue for pattern authors to have their pattern languages reviewed by fellow authors. The purpose of PLoP is to promote the development of pattern languages, primarily about aspects of software: design and programming, testing, software architecture, user interface design, domain modeling, education, human relations, and software processes. Patterns and pattern languages for domains outside software are also welcome.

PLoP 2014 was held in Allerton Park, Monticello, Illinois from September 14–17, 2014.

We invited contributions from practitioners and researchers on the following:

• Patterns and pattern languages

• Critiques of patterns and pattern languages

• Research on patterns and pattern languages

• Case studies of the use of patterns and pattern languages

PLoP is different from other conferences. It is run in the "writers' workshop" style, as described in Richard Gabriel's book, "Writers' Workshops and the Work of Making Things". Before the conference, authors interact with a "shepherd" who helps them improve their paper to make it as ready for PLoP as possible. A program committee reviews the papers for final acceptance after they have gone through the shepherding process. The writers workshops provide more feedback, and so authors revise their paper again after PLoP. The papers here are the version produced by authors after PLoP, not the ones reviewed at PLoP.

Table of Contents

The primary focus of our time at PLoP is the Writer’s Workshops where we discuss ways to improve the submitted papers. Below is the list of papers from PLoP 2014 that were revised and accepted for inclusion in the final proceedings. These paper titles reflect the final papers.

The table of contents is organized by the workshop groups and the chairs as they were presented at PLoP.

Writer's Workshops

Narrow Road to the Deep North Group led by Richard Gabriel
The Nature of Pattern Illustrating: The Theory and The Process of Pattern Illustrating by Kaori Harasawa, Natsumi Miyazaki, Rika Sakuraba, Takashi Iba
Pattern Language for good old future from Japanese culture by Megumi Kadotani, Shunichi Ishibashi, Kyungmin Lim, Aya Matsumoto, Takashi Iba
Change Making Pattern Workbook: A Workbook Approach to Pattern Applications by Sumire Nakamura, Eri Shimomukai, Taichi Isaku, Takashi Iba
Pattern Language and Mining Group led by Lise Hvatum and Bob Hanmer
A Pattern Language for Open Academic Society with Non-professional Users by Koichiro Eto, Tom Hope, Hideaki Takeda
Learning Patterns for Self-Directed Learning with Notebooks by Yuji Harashima, Tetsuro Kubota, Tasuku Matsumura, Kazuo Tsukahara, Takashi Iba
Patterns of Public Policy and Administration: Identifying Interfaces and Relationships by Paul Chalekian
Requirements Elicitation using BPM by Lise Hvatum
Analyzing Software Patterns Network obtained from Portland Pattern Repository by Hironori Washizaki, Suthinan Thanintranon, Masashi Kadoya, Yoshiaki Fukazawa, Takeshi Kawamura, Joseph W. Yoder
Mining New Patterns by Learning from the Trenches by Robert S. Hanmer, Mehdi Mirakhorli
Testing and Development Group led by Rebecca Wirfs-Brock and Joseph Yoder
QA to AQ Part Two: Shifting from Quality Assurance to Agile Quality - “Measuring and Monitoring Quality by Joseph Yoder and Rebecca Wirfs-Brock
Patterns for Preparing for a Test Driven Development Session by Eduardo Guerra, Maurício Finavaro Aniche, Marco Aurélio Gerosa, Joseph Yoder
Patterns for Testing Distributed Systems Interaction by Eduardo Guerra, Paulo Bittencourt Moura, Felipe Meneses Besson, Ayla Rebouças, Fabio Kon
Pattern Enabled Development by Marvin Toll, William R. Minto
Business Object Life Cycle Pattern by Russ Rubis, Ionut Cardei
Security Group led by Ralph Johnson
Extensions to Pattern Formats for Cyber Physical Systems by Antonio Maña, Ernesto Damiani, Sigrid Gürgens, George Spanoudakis
The Secure Domain Name System pattern by Eduardo B. Fernandez, Michael Van Hilst
Cipher Suite Rollback Attack: A Misuse Pattern for TLS Server Authentication Handshake Protocol by Ali Alkazimi, Eduardo B. Fernandez
Engineering Secure and Private Systems Using COSSPs by Antonio Maña, Jose Fran. Ruiz, Marcos Arjona
Patterns for Fault Tolerant Cloud Software by Bob Hanmer
Permission Based Granular Acess Control Pattern by Russ Rubis, Dr. Ionut Cardei
The following papers were workshopped at PLoP *** But not included in the proceedings ***
From Environmental Structure to Service Systems Thinking: Wholeness with Centers Described with a Generative Pattern Language by David Ing
Feeling of Life’ System with a Pattern Language by Takashi Iba, Norihiko Kimura, Shingo Sakai
A Journey on the Way to Pattern Writing: Designing the Pattern Writing Sheet by Takashi Iba
Improving Code Quality on Automated Tests of Web Applications: A Set of Patterns by Maurício Aniche, Eduardo Guerra, Marco Aurélio Gerosa

Committees

The PLoP Conference would not be a success without the volunteer help of the shepherds and program committee members. The shepherds devote hours of their time to helping authors improve their papers before the conference. The program committee members help organize the conference, handle requests, and communicate with attendees.

We would like to thank all those who helped make PLoP 2014 a complete success.

Conference Organization Committees

Program Committee

Shepherds