Joseph Yoder's Personal Pages

The Refactory

Joe is a founder and principal of The Refactory, Inc., he runs his own consulting and mentoring business, and also volunteers for The Hillside Group.


Joseph is an international speaker, pattern author, and longstanding member of The Hillside Group where he currently serves as the President of the Hillside Board, a group dedicated to improving the quality of software development. He is co-author of the Big Ball of Mud pattern, which illuminates many fallacies in the approach to software architecture. Joseph has chaired the Pattern Languages of Programming Conference (PLoP), given a keynote address at Agile Portugal, helped organize SugarLoaf PLoP, ChiliPLoP, and PLoPs for many years, as well as presented tutorials and talks at conferences such as OOPSLA, Agile PT, SATURN, CBSoft, and ECOOP. He has also contributed with tracks at QCon San Francisco, assisted the new AsianPLoP with their first conference, organized a web 2.0 workshop at the TOOLS conference in Europe, and presented papers and tutorials at many conferences around the world. >> Read More


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Adaptive Object Model Researcher and Design Pattern Writer

Joe has been involved for quite some time working on and deploying Adaptive Systems or Domain-Specific Languages for clients. Joe thinks software is still too hard to change. He wants do something about this and believes that by using good patterns and by putting the ability to change software into the hands of the people with the domain knowledge seems to be some promising avenues to solve this problem. Joe has written papers, presentations, and tutorials on Adaptive Object-Models, meta modeling, frameworks, and has organized many workshops on this topic. Take a look at his research and papers to find out more about his studies and specialties. >> Read More

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Joe currently resides in Urbana, Illiinois. He runs two companies, works on software development projects, authors pattern papers, and enjoys the day to day life of a traveler and consultant. Joe supports the local community through a portal site titled CU Local He enjoys riding his Harley, cycling Central Illinois trails, listening to a variety of music, and spending time with friends and family.

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Travel Log

2014 Travel Log

Portugal May 31st - June 14th, 2014

Agile PT happens this time of year and I always make an effort to attend. This year I'm also giving a talk to a small group prior to the conference. I'll be hanging with Ademar and other friends I've made through the years. I'm going to the conference, but I'll also be traveling around a bit and should have photos online sometime in the near future. 

Denmark May 21st - May 28th, 2014

For the first time, I'll be attending a ScrumPLoP conference. I'm excited to visit with old and new friends in Denmark. This is the fifth ScrumPLoP and I'm excited to count myself as one of the attendees. It should be a good trip.  

Tokyo, Japan February 27th - March 9th, 2014

The trip is primarily for the 2014 AsianPLoP, but I'll also be visiting various sites and taking some time to tour Japan's greatest places. Some highlights from the trip include taking the bullet train, doing a workshop at AsianPLoP, and hanging with my colleague Rebecca Wirfs-Brock. 

Read more: Travel Log

Joe Yoder

Joseph Yoder

Agilist, Computer Scientist, Consultant, Object Oriented Developer, All Around Good Guy!


Talks & Tutorials

September 14th & 18th, 2014
Monticello, Illinois
September 8th & 9th, 2014
Tokyo, Japan
July 14th - 18th, 2014
Boxborough, Massachusetts
June 6-7th, 2014
Leiria, Portugal
May 24-29th, 2014
Quinta da Pacheca
March 5-8th, 2014
Tokyo, Japan
October 23-26
Monticello, Illinois
August 5-9
Nashville, Tennessee
June 21-22
Lisboa, Portugal
April 23-24
Chicago, Illinois
October 25-26
Kraków, Poland
October 18-22
Tucson, Arizona
September 23-27, 2012
Natal, Rio Grande do Norte, Brazil
September 21-23, 2012
Natal, Rio Grande do Norte, Brazil
August 13-17, 2012
Dallas, Texas
July 23-27, 2012
Panama City, Panama
June 18-26, 2012
Porto, Portugal
April 14-17, 2012
Las Vegas, New Mexico

Recent News

What is Pragmatic Test Driven Development (TDD) all about?

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Big Ball of Mud: Still the De-Facto Standard of Software Design.

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I have an interview online regarding my keynote address at the Agile Portugal conference in June.

Read the Interview

After Agile2009, a blogger wrote a synopsis of the Big Ball of Mud talk.

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I gave a recorded interview at QCon 2009 where I discuss the AOM framework.

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Joe's Publications

Can be downloaded from my website. I add new material as it's been published.

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Training Mentoring

Are you looking for design patterns training or mentoring? Joseph provides training courses for a variety of languages.

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Contact Joe

Joe Yoder


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