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PLoP
Pattern Languages of Programs, People, and Practices (PLoP®) is the premier conference for pattern authors and users to gather, discuss and learn more about patterns. To achieve this, the conference promotes the use of patterns and pattern languages, as well as the underlying theory of the nature of order. PLoP 2025 will be held October 12-15, 2025. Visit the PLoP Official Site,
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The Hillside Mission
The mission of the Hillside Group is to improve the quality of life and society as a whole. This includes architects, developers, managers, owners, workers, educators, students, and more. Understanding and helping the human element is critical for achieving success. The Hillside Group believes in making processes and design more humane by paying attention to real people and existing practices.
The Hillside Group promotes the use of patterns and pattern languages to record, analyze, and share knowledge to help achieve its mission. The Hillside Group sponsors a variety of activities to achieve this mission—organizing workshops, hosting PLoP (pattern) conferences, and producing publications for discussing, recording, and documenting successful practices.
The Hillside Group supports many different conferences such as: PLoP, EuroPLoP, AsianPLoP, VikingPLoP, SugarLoafPLoP, and ChiliPLoP. These conferences focus on writing groups to better improve patterns through group exposure. Each conference offers advanced topics for the more adept pattern writers. Participants have the opportunity to refine and extend their patterns with help from knowledgeable and sympathetic patterns enthusiasts.
Pattern Books
The Design Patterns Book Series showcases many patterns from PLoP conferences and leading experts in the patterns field.
See our Pattern Book Library filled with over 80 Pattern related books.
Patterns Resources
- Pattern Definition
A pattern language defines a consists of patterns and the rules with sequences to combine them.
- Patterns Catalog
A collection of pattern resources on the web. Sign up for an account to add your own.
- Tools for Writing Patterns
Pattern writing tools include example code and pattern writing templates.
- PLoP Conference Proceedings
Past conference proceedings from the PLoP conferences.
PLoP Conferences
by Robert V. Binder
From the Back Cover
More than ever, mission-critical and business-critical applications depend on object-oriented (OO) software. Testing techniques tailored to the unique challenges of OO technology are necessary to achieve high reliability and quality. Testing Object-Oriented Systems: Models, Patterns, and Tools is an authoritative guide to designing and automating test suites for OO applications.This comprehensive book explains why testing must be model-based and provides in-depth coverage of techniques to develop testable models from state machines, combinational logic, and the Unified Modeling Language (UML). It introduces the test design pattern and presents 37 patterns that explain how to design responsibility-based test suites, how to tailor integration and regression testing for OO code, how to test reusable components and frameworks, and how to develop highly effective test suites from use cases.
Effective testing must be automated and must leverage object technology. The author describes how to design and code specification-based assertions to offset testability losses due to inheritance and polymorphism. Fifteen micro-patterns present oracle strategies--practical solutions for one of the hardest problems in test design. Seventeen design patterns explain how to automate your test suites with a coherent OO test harness framework.
The author provides thorough coverage of testing issues such as:
* The bug hazards of OO programming and differences from testing procedural code
* How to design responsibility-based tests for classes, clusters, and subsystems using class invariants, interface data flow models, hierarchic state machines, class associations, and scenario analysis
* How to support reuse by effective testing of abstract classes, generic classes, components, and frameworks
* How to choose an integration strategy that supports iterative and incremental development
* How to achieve comprehensive system testing with testable use cases
* How to choose a regression test approach
* How to develop expected test results and evaluate the post-test state of an object
* How to automate testing with assertions, OO test drivers, stubs, and test frameworksReal-world experience, world-class best practices, and the latest research in object-oriented testing are included. Practical examples illustrate test design and test automation for Ada 95, C++, Eiffel, Java, Objective-C, and Smalltalk. The UML is used throughout, but the test design patterns apply to systems developed with any OO language or methodology.
Addison-Wesley Pub Co
ISBN: 0201809389
- Hillside Fellowship Award
- PLoP Conference Proceedings
- Patterns for API Design
- Pattern Languages of Programing
- Security Patterns in Practice
The Hillside Fellowship Award
The Hillside Fellowship Program was established in 2016 to recognize members of The Hillside Group who have made exceptional contributions to the Hillside community and to the Patterns community at large. The title of Hillside Fellow denotes an outstanding member who has consistently and repeatedly:
- provided excellence in contributions to the patterns body of knowledge
- advanced the arts,
PLoP Conference Proceedings
After the PLoP Workshops, writers are encouraged to modify their papers and submit a final version. The final versions are collected and submitted to the ACM Digital Library. The versions are also available from the conference website.
Conference Proceedings (ACM Digital Library)
Some of the PLoP accepted papers have been published on the ACM Digital Library . The program committee will
… Read MorePatterns for API Design
" Patterns for API Design " by Olaf Zimmermann, Mirko Stocker, Daniel Lubke, Uwe Zdun, and Cesare Pautasso
This book is for any domain, technology, or platform
- Identify and overcome API Challenges
- Size your endpoint types and operations
- Design request and response messages and their representations
- Refine your message design for quality
- Combine patterns to solve real-world problems and make
PLoP™ (Oct 12-15, 2025)
Check out the main PLoP Website for more information and details!!!
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Security Patterns in Practice
Eduardo Fernandez's new book " Security Patterns in Practice: Designing Secure Architectures with Software Patterns " has been published.
It is the result of 14 years of producing security patterns with students and colleagues. Almost all of these patterns went through PLoP, EuroPLoP, AsianPLoP, or SugarLoafPLoP. Many of you have participated as shepherds or workshop commentators, the book owes something to
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