NOTE: the December meeting will be at The Navy League Building, 2300 Wilson Blvd, Arlington, very near the Court House Metro station.
December is the return of Stephen Bohlen. Steve delivered a great presentation to us last year on the topic of CQRS. Now he's back to present Refactoring to a S.O.L.I.D. Foundation.
In this session we take a small, functional but tightly-coupled, software solution and improve its design using each of Robert C. Martin's S.O.L.I.D. principles as follows:
- SRP: Single Responsibility Principle
- OCP: Open-Close Principle
- LSP: Liskov Substitution Principle
- ISP: Interface Segregation Principle
- DIP: Dependency Inversion Principle
Each principle is applied in sequence to the existing solution, making it possible for the attendee to observe the principle in relative isolation first while also evolving an understanding of how the principles all collaboratively reinforce each other when applied together. Before each principle is applied and the solution is refactored to introduce it, the attendee is presented with one or two simple PowerPoint slides to introduce the concept and provide some abstract understanding of its goals and benefits to OO programming. The principle is then applied to the existing solution, demonstrating the practical application of the principle to working software. At each step along the way, the existing solution (a simple console application) is re-executed, demonstrating that the overall behavior of the software solution has not been negatively impacted by the various refactorings.
Stephen Bohlen's Bio
Currently a Senior Technology Evangelist for Microsoft Corporation, Stephen brings his varied 20-plus-years of experience as a former practicing Architect, CAD Manager, IT Technologist, Software Engineer, CTO, and consultant to assist select Microsoft Partner organizations in their adoption of cutting-edge and pre-release Microsoft developer products and technologies. Stephen is also an active contributor to several Open-Source Software projects including NHibernate, Spring.NET, NDbUnit, and others. Active in the software development community, Stephen speaks publicly, blogs (semi-)regularly, and is the author of several popular screencast series focused on Agile and ALT.NET concepts and technologies including the widely-praised 15-part Summer of NHibernate video series introducing viewers to the popular open-source O/RM tool. Stephen is also a founding/organizing member of the NYC ALT.NET user group as well as a co-organizer of the New York City Domain Driven Design User Group. For the past several years, he has been the Chairperson of the annual New York City Code Camp event. He is also a Microsoft MVP award recipient in Solution Architecture, ASP.NET, and Visual C#, a member of the ASP Insiders and the Visual C# Insiders, and formerly held the office of the Vice President for INETA, North America.
When: Tuesday Dec 10, 2013 at 6:30 pm (See Agenda Below)
Where: The Navy League Building, ground floor conference room
2300 Wilson Blvd., Arlington -- Near the Court House Metro
Cost: Free, thanks to our sponsors
Sponsors: Thank you to our main sponsor Excella Consulting for hosting the December meeting and for providing pizza and refreshments.
6:30 – 7:00 Arrive, mingle, eat pizza, network with others, and hear some brief announcements
7:00 – 8:30 Meeting/presentation/workshop/etc.
8:30 – 9:00 Q&A, raffle, and wrap-up
Can't make it this month?
We meet approximately every other month, the second Tuesday of the month. So if you can't make it this month, hopefully we'll see you at the next meetup. Also, if you have an idea, game, workshop, or story to share with the group, then please contact the organizer to setup a presentation for a future meeting.