|
Sponsored Links
Resources
Enterprise Java
Research Library
Get Java white papers, product information, case studies and webcasts
|
News
News
News
|
Messages: 5
Messages: 5
Messages: 5
Printer friendly
Printer friendly
Printer friendly
Post reply
Post reply
Post reply
XML
XML
XML
|
 |
Evolutionary architecture and emergent design
Architecture and design in software have resisted firm definitions for a long time because software development as a discipline has not yet fully grasped all their intricacies and implications. But to create reasonable discourse about these topics, you have to start somewhere. This article series concerns evolutionary architecture and emergent design, so it makes sense to start the series with some definitions, considerations, and other ground-setting.
Defining architecture
Architecture in software is one of the most talked about yet least understood concepts that developers grapple with. At conferences, talks and birds-of-a-feather gatherings about architecture pack the house, but we still have only vague definitions for it. When we discuss architecture, we're really talking about several different but related concerns that generally fall into the broad categories of application architecture and enterprise architecture.
Read the rest at http://www.ibm.com/developerworks/java/library/j-eaed1/index.html?S_TACT=105AGX02&S_CMP=EDU .
|
|
|
Message #305383
Post reply
Post reply
Post reply
Go to top
Go to top
Go to top
|
|
Re: Evolutionary architecture and emergent design
Isn't architecture the "vision" for the product/service and design, a "method" to realize that vision? There is no such thing as "framework architecture" or "DB architecture", but only "framework design" or "DB design." At least, IMHO.
|
|
|
Message #305387
Post reply
Post reply
Post reply
Go to top
Go to top
Go to top
|
|
Interesting title...
Although this is a first part, and goes to the point on setting the definitions, I feel the actual architecture definition is still vague (I had to post a set of definitions myself sometime ago ). Anyway, the idea of an evolutionary architecture is interesting as a title.
In several discussions I had had, the idea of an architecture is repeatedly presented as a bunch of paper with fixed ideas that will not come true after all. I argue that should not be true.
Granted, a bunch of paper may define the "architecture to be", but the architecture is not ideas but the actual structure of working software at the end. So, Architects must define the final goal not as an stone written truth, but as an ideal outcome which will be supported by principles and guidelines to succeed. Those guidelines should show the path of adjustments to the ideas depending on the construction evolution. And all that is aimed to solve the stakeholders concerns (see no-the-goal-is-not-the-code-nor-the-design)
In that line, and architecture is what you get at the end, and you set your goals and guides to drive the solution at the beginning, and make your decisions not as late as you could but as soon as they are in the best moment to be taken. (Yes, it is not the same). Under that idea, the architecture is something alive, that will change over time while it is being developed. It "evolves", and that is what I like about the article.
William Martinez Pomares.
Architect's Thoughts
|
|
|
Message #305475
Post reply
Post reply
Post reply
Go to top
Go to top
Go to top
|
|
Re: Evolutionary architecture and emergent design
Personally, I think of the architecture as the "now". It is an evolving "now" but the vision and the design are how you evolve it. The architecture is the present landscape in total.
Just my $0.02
|
|
|
Message #305482
Post reply
Post reply
Post reply
Go to top
Go to top
Go to top
|
|
Re: Evolutionary architecture and emergent design
There is no such thing as "framework architecture" or "DB architecture", but only "framework design" or "DB design." At least, IMHO.
"Design" presumes that you've already got technology in place. "Architecture" usually implies either adopting new technology and making it work like existing technology (e.g., making calls to remote "services" look like simple function calls) or making new technology that sits on top of existing technology (e.g., Struts on top of servlets on top of HTTP). Some people find design easier because you know what you've got to work with. Other people find architecture easier because you're not limited to an existing technology.
|
|
|
| New content on TheServerSide.comNew content on TheServerSide.comNew content on TheServerSide.com |
|
|
Reza Rahman continues to explore the features of the proposed JSR 299, Contexts and Dependency Injection for Java EE (CDI). When approved, it promises to be a key feature of Java EE 6.
(January 21, Article)
Ted Neward is an independent consultant specializing in high-scale enterprise systems, and an authority in Java and .NET technologies. He is the author and co-author of several books, including Effective Enterprise Java. At TheServerSide Java Symposium in March, he will be presenting sessions on pragmatic architecture, ECMAScript and Scala.
(January 15, Article)
Now that Oracle is absorbing Sun Microsystems, there mixed views on what should come of the Java Community Process (JCP). While some say Oracle should become the new steward of Java and keep the JCP much as it was, others argue that it may be time to open-source this widespread language.
(November 24, Article)
Reza Rahman explores the features of the proposed JSR 299, Contexts and Dependency Injection for Java EE (CDI). When approved, it promises to be a key feature of Java EE 6.
(November 2, Article)
SAML is an XML-based standard for exchanging authentication and authorization data between security domains. The single most important problem that SAML was created to solve is the Web browser Single Sign-On problem. Many organizations are debating whether to stay with version 1.1 or move to 2.0. This article makes observations about both options.
(September 28, Article)
Joe Ottinger takes a look at how people learn, and applies it to the practice of programming. He notes that understanding how people learn is an essential part of working in a programming team.
(September 22, Article)
Stephen Maryka gave us an article about the Asynchronous Web and posed a number of questions that get examined like an approach to delivering Asynchronous Web capabilities through extensions to existing Java EE technologies.
(July 14, Article)
JavaServer Faces Flex goal is to provide users capability in creating standard Flex components, part of flexSDK which is open sourced through MPL license, as normal JSF components. This article by Ji Hoon Kim will provide an overview of creating a simple multilingual JSF page consisting of JSF Flex tags.
(June 29, Article)
In this session Jeff explores the key characteristics of successful SOA projects. He covers some of the patterns, and anti-patterns, tool sets, and strategies that he himself learned the hard way. Last, he provides a strategy and blueprint for achieving a high likelihood of success in your SOA project.
(June 23, Tech Talk)
Ari Zilka, CTO of Terracotta, Inc., talks about the new features in Terracotta 3.1, announced during JavaOne and available now.
(June 15, Tech Talk)
In this Tech Talk, Josh Long explores an integration challenge using Spring Integration and walks through the implementation, employing and expanding on the basic patterns of Enterprise Application Integration to tie together components into a function integration solution, and then demonstrates how Spring Integration helps address the integration requirements.
(June 15, Tech Talk)
In this Tech Talk, David Geary teaches you: The basics of Google Web Toolkit; How to implement Ajax-enabled applications in Java; Internationalization; Hooking into the browser history mechanism; Remote procedure calls.
(June 4, Tech Talk)
Jon Kern discusses the best architecture/technical solutions and ensure that they are repeated by all developers. By tackling the architecture up-front in a serial manner, subsequent parallel development will be much more manageable and predictable.
(May 28, Tech Talk)
This keynote describes the frustrations of modern knowledge workers in their quest to actually get some work done, and solutions for how to guard yourself against all those distractions. Neal Ford talks about environments, coding, acceleration, automation, and avoiding repetition as ways to defeat the misguided attempts to sap your ability to produce good work.
(May 26, Tech Talk)
Gil demonstrates how new, aggressive uses of already abundant compute capacity by common applications offer competitive value for application designers.
(May 21, Tech Talk)
Chris Keene introduces WaveMaker as a new way to automate the ability to generate Hibernate classes in order to more quickly bring OR mapping into an application.
(May 19, Article)
Download the entire book of Jakarta-Struts Live and learn about Struts MVC, Tiles, the Validator, DynaActionForms, plug-ins, internationalization, and more.
(Book PDF Download)
The Application Server Matrix is a detailed listing of J2EE vendors and their application server products, with information on latest version numbers, J2EE spec support and licensing, pricing, platform support, and links to product downloads and reviews.
(Application Server Comparison Matrix)
|
|
