5

A terminology question appeared when I was comparing EJB 3 and Spring.

Wikipedia says that

Enterprise JavaBeans (EJB) is a managed, server-side component architecture for modular construction of enterprise applications.

and also

The Spring Framework is an open source application framework and inversion of control container for the Java platform.

"EJB 3 in Action" suggests that

Together, the components, or EJBs, and the container can be viewed as a framework that provides valuable services for enterprise application development.

Is any framework an architecture? If not, what is the difference between these terms? Could EJB be considered a framework?

closed as primarily opinion-based by gnat, user40980, Dan Pichelman, Martijn Pieters, user53019 Feb 26 '14 at 17:27

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

  • I see the 'closing as opinion based' mob likes to take direction from Wikipedia. I quote, "To date there is still no agreement on the precise definition of software architecture." The link that cites the source of that quote comes from a Carnegie Mellon's - Software Engineering Institute which looks suspiciously like a subsidiary certification mill. Despite their inability to nail down a concrete definition, they still offer a number of certificates pertaining to Software Architecture (sei.cmu.edu/training/certificates/architecture). – Evan Plaice Feb 26 '14 at 20:01
9

An architecture is the the abstract design concept of an application. Basically, a structure of the moving parts and how they're connected.

A framework is a pre-built general or special purpose architecture that's designed to be extended.

If an architecture is the design of a structure, a framework is the architecture of a foundation. Frameworks are specifically designed to be built on or extended.

Some frameworks deal primarily with scaffolding. Meaning, they provide pre-built modules that are easy to use/extend to save the developer from having to create them from scratch. For instance, most MVC web frameworks (ex django, pylons, codeigniter) make it much easier to implement sessions, database connections, templating, etc...

Other frameworks deal primarily with augmenting the capabilities of the language itself, filling in what some may consider to be 'missing pieces'. They add features that come from other languages, synctatic sugar, or extend the language. The Underscore lib is a perfect example of this. It doesn't do much to assist in building applications, it's primary purpose is to extend the core functionality of javascript.

Some frameworks exist to add new features to a language, or re-hash existing capabilities in a new way. For instance, jQuery took the -- previously painful -- process of querying the HTML DOM and made it trivial. They also provided a means to write cross browser compatible AJAX requests. While jQuery appears to add a new style of syntax, behind the scenes it runs on vanilla JavaScript. AngularJS is another framework that leverages JS/HTML in new and interesting ways using vanilla JS.

In your case. Spring and EJB are both scaffolding MVC frameworks, each with their own trade-offs.

3

Generally speaking, architecture is an abstract plan that can include design patterns, modules, and their interactions. Frameworks are architected "physical" structures on which you build your application.

Your architecture may incorporate multiple frameworks. And multiple layers of framework. At each layer, the "architecture" is the oft-documented "thinking" from which the layer is built. The frameworks are the "physical" components used to build it.


When you call a target environment an "architecture", you're referring to the design implications on your software. When you call it a "framework", you're referring to the functionality it gives you.

0

In software, a Framework is a software module or set of modules that supports a generic programming concept by abstracting common functionality (code in a software sense) into a reusable format.

An Architecture is an assembly of systems that solves business needs. According to TOGAF

The definition of an architecture used in ANSI/IEEE Std 1471-2000 is:

"The fundamental organization of a system, embodied in its components, their relationships to each other and the environment, and the principles governing its design and evolution."

In itself TOGAF is a framework because it abstracts the reusable parts of architecture into a reusable format. It does so through documentation instead of code.

Not the answer you're looking for? Browse other questions tagged or ask your own question.