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Design patterns, the big picture, Part 3: Beyond software design patterns
Use patterns to improve interaction design, enterprise architecture, software methodology, and more
Page 5 of 5
Lecturing can be applied in a negative or a positive manner. This pattern is destructive when used to punish the recipient without imparting anything helpful while serving only to benefit the lecturer. However, when used to impart information solely for the recipient's benefit (that is, constructive criticism), this pattern is constructive. The last six communication patterns listed are considered to be entirely positive forms of communication.
Effective communication is an essential part of achieving a successful project. It pays to learn positive communication patterns and employ them as often as possible.
Communication patterns and public speaking
The American Communication Association has created a free online guide to help students learn to be effective in public speaking. One part of this guide discusses communication patterns for public speaking. The discussion is divided into verbal and non-verbal categories, and focuses on communication in a cultural context. Patterns are categorized as low-context communication or high-context communication.
Effective presentation
Communication often involves public speaking or presentation. You might be called to present a short talk on a new technology at a conference or in a company meeting. Presentation styles vary from unidirectional (talking only) to more bidirectional (talking and listening/responding to feedback). A presentation can be accompanied by a slideshow or other visual aids.
A presentation pattern is a design pattern for making presentations more effective. Three masterful presenters -- Neal Ford, Matthew McCullough, and Nathaniel Schutta -- demonstrate the value of presentation patterns in "Presentation Patterns: Demonstrations Versus Presentations" (InformIT, August 2012). One of these patterns, Shoeless is named for JavaWorld contributor Venkat Subramaniam, whose habit of presenting shoeless is almost as famous as his dynamic presentation style. The Shoeless pattern is described in Figure 5.
Figure 5. Presentation patterns can be formalized similarly to other design pattern categories (click to enlarge)
Being able to deliver effective presentations can greatly benefit your software development career, and learning various presentation patterns can help to boost their effectiveness. If you struggle with shyness, patterns can help in this area. Telling a joke at the beginning of a presentation is an example of a very successful presentation pattern that both humours the audience and relaxes the presenter.
In conclusion
This article concludes a three-part series investigating design patterns used in software development. You've learned about software design patterns, interaction design patterns, architectural patterns, organizational patterns, and communication and presentation patterns. The universe of design patterns undoubtedly includes many more design pattern categories.
Design pattern terminology isn't always precise. For example, perhaps the Gang of Four should have named their book Software Design Patterns. As I discussed in Part 2, design patterns can be misused, and anti-patterns can emerge. However, design patterns have proven to be helpful when used correctly. Familiarizing yourself with design patterns of different types can help you progress through your career in Java and beyond.
About the author
Jeff Friesen is a freelance tutor and software developer with an emphasis on Java and Android. In addition to writing Java and Android books for Apress, Jeff has written numerous articles on Java and other technologies for JavaWorld, informIT, Java.net, and DevSource. Jeff can be contacted via his website at TutorTutor.ca.
Read more about Core Java in JavaWorld's Core Java section.
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Resources
- Read the earlier articles in this series: Part 1 is an overview of design patterns, including their history and classification; Part 2 is a fresh look at the Gang of Four patterns, especially Strategy and Visitor.
- "Using Patterns in Architecture to Reduce Risk" (Peter Jarman, IASA.org) is an excellent, in-depth survey of architectural patterns.
- See "Introduction to Software Engineering/Architecture/Design Patterns" for an overview of pattern types used in software architecture.
- See the SOA Patterns page for an extensive listing of SOA patterns. Also see "Lean SOA with Java EE 6" (Adam Bien, JavaWorld, April 2009).
- Architectural patterns are often combined. In "Event-driven services in SOA" (JavaWorld, January 2005) Jeff Hanson offers a guided tour of Mule's architecture, demonstrating how the ESB messaging framework combines event-driven and service-oriented architectures.
- "Distributed transactions in Spring, with and without XA" (Dave Syer, JavaWorld, January 2009) presents seven transaction-processing patterns for Spring applications.
- "The ESB Architectural Pattern" (IBM ISV and Developer Relations Group) and "Implementing the Enterprise Service Bus Pattern to Expose Database Backed Services" (Lucas Jellema, Oracle Technology Network, December 2011) describe the ESB. pattern in detail.
- See Organizational Patterns For Software Architecture for more organizational pattern examples.
- See "What Are the Five Organizational Patterns for Public Speaking?" ( Michael Brent, ehow.com) to learn more about patterns for public speaking.