Newest Agile Design Methods for code construction

Question

Hallo everybody

Recently I've been reading the book:

"Agile software development, Principles, Patterns and Practices" by Bob Martin

The following (S.O.L.I.D) agile-design-principles are listed within the book:

• Single Responsibility Principle
• Open Closed Principle Principle
• Liskov Substitution Principle
• Interface Segregation Principle
• Dependency Inversion Principle

Because of the fact that this book quite old(2003), I have a question:

1. Are there any other newly developed principles besides the SOLID methods?? If yes, is there any book/site covering these new emerging principles with practical code examples that you could recommend to me??

Of course I can google for some of these.

However, in stackoverflow read and write many profis, so I would like to hear their opinion too :D

Answer 1

UncleBob's book is a SOLID start ;) I'd add his Clean Code to your reading list too. For actual code construction it is a great tome.

Kindness,

Dan

Answer 2

You may want to look at books such as Code Complete and Pragmatic Programmer as they also talk about some excellent development principles.

Answer 3

I like the Domain Driven Design approach from Eric Evans:

• http://domaindrivendesign.org/
• http://domaindrivendesign.org/books#DDD

As the SOLID approach you describe, DDD is mostly sound and clean Object Orientation guidelines. DDD focus especially on creating a design which match as much as possible with the business to be implemented in the system, rather than having it guided by the technology and/or the frameworks you use. This lead to great testable design, easy to refactor.

In support to DDD, I like the Hexagonal Architecture of Alistair Cockburn. It gives you great ideas about general design of Object Oriented systems:

• http://alistair.cockburn.us/Hexagonal+architecture

A more advanced and innovative approach I am currently exploring is the theory of centers, but this is not yet really documented. A presentation about it:

• http://www.dreamsongs.com/Files/NatureOfOrder.pdf