PLoP 2021 is in cooperation with ACM.
The Pattern Languages of Programs (PLoP®) conference is the premier event for pattern authors and enthusiasts to gather, discuss, and learn 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 the 28th Conference on Pattern Languages of Programs (PLoP’21), October 5-7, 2021, virtual online. 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.
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The Pattern Languages of Programs (PLoP™) conference is the premier event for pattern authors and enthusiasts to gather, discuss, and learn more about patterns, programming, software development, and more!
This year was another year impacted by COVID-19 restrictions; therefore, we made the decision to run PLoP 2021 online again. In addition to the conference, we also organized a PLoPourri—a combination of events and activities leading up to the conference days, covering different phases of the lifecycle of patterns and pattern languages. These events were held face-to-face, virtually, or in a hybrid way, depending on event, time, and location constraints.
Writers' Workshops are the primary focus of our time at PLoP. They allow authors to discuss and review each other’s papers in a very fruitful way. We had three groups of five to six papers each, selected from an initial set of submissions after a considerable period of shepherding. Three other papers were selected for a writing group and had the opportunity to evolve during PLoP with the mentoring of an experienced pattern writer.
In addition to the Writers' Workshops, we had two invited talks, one workshop, and games:
The PLoPourri events were held throughout the year. Topics included Pattern Mining (teaching attendees how to extract patterns from proven experiences), Making Agile Happen, Cloud Adoption, Fearless Change, and a workshop about Methodological, Philosophical, and Educational Study on Pattern Languages.
After the conference, the authors were strongly encouraged to further evolve their papers to accommodate suggestions for improvement gathered during the discussions at the conference. The final versions of these evolved papers are published in the ACM Digital Library as PLoP 2021 Proceedings.
We would like to thank all authors, shepherds, reviewers, members of the Program Committee, and all conference organizers for their time and collaboration. Thank you all for making PLoP 2021 possible!
Ademar Aguiar and Joseph Yoder, PLoP 2021 Chairs
The 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 2021 was held online from October 5–7, 2021.
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 as a "writers' workshop," 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 prepare it for PLoP. After shepherding, the program committee reviews the papers for final acceptance. The writers’ workshops provide more feedback, and authors revise their papers again after PLoP. The papers here are these final, revised versions, not the ones reviewed at PLoP.
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 2021 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.
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 2021 a complete success.
| Program Chair |
Ademar Aguiar University of Porto, Portugal |
|---|---|
| Virtualization Chairs |
Joseph Yoder The Refactory, USA Daniel Pinho University of Porto, Portugal |
| Publicity |
Filipe Figueiredo Correia University of Porto, Portugal |
| BootCamp |
Rebecca Wirfs-Brock Joseph Yoder |
| Games |
Christian Kohls TH Köln, Germany |
| Submission System |
Michael Weiss Carleton University, Canada |