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"The Eclipse Modeling Project is one of the most active projects within the Eclipse community. Ed Merks will give a quick overview of the Modeling projects in Helios. Then Cedric Brun will demo Acceleo and Sebastian Zarnekow will show Xtext. This presentation was recorded as part of the Helios In Action virtual conference: eclipse.org/​helios/​heliosinaction.php. Presented by Ed Merks, Cedric Brun of Obeo and Sebastian Zarnekow of itemis "

"Essential is a project to create a workbench for applying Model Driven Development (MDD). The workbench allows to experiment with models, metamodels, templates and transformations in an integrated environment. The main focus is to provide a declarative environment oriented to prototyping and evolving custom DSL and MDD tools in a quick and clean way. Motivation for a new tool Essential.Meta. DSL for Metamodelling Modelling with Essential StringTemplate, the template engine"

Data, Context and Interaction (DCI) is a paradigm used in computer software to program systems of communicating objects. Its goals are: To improve the readability of object-oriented code by giving system behavior first-class status; To cleanly separate code for rapidly changing system behavior (what the system does) from code for slowly changing domain knowledge (what the system is), instead of combining both in one class interface; To help software developers reason about system-level state and behavior instead of only object state and behavior; To support an object style of thinking that is close to peoples' mental models, rather than the class style of thinking that overshadowed object thinking early in the history of object-oriented programming languages. The paradigm separates the domain model (Data) from Use cases (Context) and Roles that objects play (Interaction). DCI is complementary to Model-view-controller (MVC). MVC as a pattern language is still used to separate the data and its processing from presentation. DCI was invented by Trygve Reenskaug, also the inventor of MVC. The current formulation of DCI is mostly the work of Reenskaug and James O. Coplien.

Legacy systems embrace a large number of technologies, making the development of tools to cope with legacy systems evolution a tedious and time consuming task. As modernization projects face with both technologies combination and various modernization situations, model-driven approaches and tools offer the requisite abstraction level to build up mature and flexible modernization solutions. MoDisco provides an extensible framework to develop model-driven tools to support use-cases of existing software modernization :

Before you read, please look at this video, showing the core features of ECP. The EMF Client Platform is a framework to build EMF-based client applications. The goal is to provide a one-click application based on a given EMF model. Besides the EMF model no additional components have to be developed or generated. Therefore ECP provides a standard solution including the most common features needed for EMF-based client applications. This application can then be customized step by step. This can be done by extending ECP or replacing single components completly.

"ModelDriven.org is a community of government, commercial and university members who use, develop and integrate open source and commercial capabilities to enable agile business solutions based on model driven methods and technologies. ModelDriven.org is standards based, leveraging Model Driven Architecture® as defined by the OMG and the Semantic Web as defined by W3C. This community has both a user membership and a provider membership. The user community drives the agenda - ..Read More >>"

Acceleo is a pragmatic implementation of the Object Management Group (OMG) MOF Model to Text Language (MTL) standard. You do not need to be an expert to start using the plug-ins and create your first code generator : using the provided example projects and the powerful completion feature of the Acceleo editor, it is very easy to get started and understand the basic principles.

Emfatic is a text editor supporting navigation, editing, and conversion of Ecore models, using a compact and human-readable syntax similar to Java. The EPLed Emfatic now hosted at EMFT extends the Feb 2005 alphaworks release with support for EMF Generics, folding, "red squigglies", an EMF Type Hierarchy, hyperlinks, AutoEdits, and the possibility to define templates to speed up document creation, among other usability features. The best way to gain hands-on experience with Emfatic is to right-click on any .ecore file and choose Generate Emfatic source, a similar converter works in the opposite direction. Online help is also available. Emfatic itself builds upon Gymnast, a framework for jumpstarting text editors for custom Domain Specific Languages. Documentation on how to extend Emfatic, as well as on using Gymnast, can be found in this technical report.

A set of functions and predicates (as defined by Google Collections / Guava libraries) along with a set of utility methods to help navigating and editing Eclipse EMF models. EMFPath depends on Google Guava. Guava is available as OSGi bundles from the guava-bundle project.

" The Web Modelling Language is a visual notation for specifying the content, composition, and navigation features of hypertext applications, building on ER and UML."

"I'll try to list all the MDE tools I know, I'll also try to reference them by their scope. Feel free to comment this list of MDE tools!"

Akka is the platform for the next generation event-driven, scalable and fault-tolerant architectures on the JVM We believe that writing correct concurrent, fault-tolerant and scalable applications is too hard. Most of the time it's because we are using the wrong tools and the wrong level of abstraction. Akka is here to change that. Using the Actor Model together with Software Transactional Memory we raise the abstraction level and provide a better platform to build correct concurrent and scalable applications. For fault-tolerance we adopt the "Let it crash" / "Embrace failure" model which have been used with great success in the telecom industry to build applications that self-heal, systems that never stop. Actors also provides the abstraction for transparent distribution and the basis for truly scalable and fault-tolerant applications. Akka is Open Source and available under the Apache 2 License.

Each node in a Jackrabbit workspace tree has a node type that defines the child nodes and properties it may (or must) have. Developers can use node types to define a custom content model for their application domain and have Jackrabbit enforce the constraints of that model at the repository level.

"Let's imagine we want to create an application for orders. People can sign in to the system, place orders for various items, check out and have them sent to their address. Very simple, but we can show a lot of things here. As we expect to be writing more than one application of this type and as we also would like to be able to express the structure of the application on a business level (one of the major drivers for DSLs and MDSD for that matter), we come up with the idea of using a DSL to describe what the application does. Defining the DSL is what we did last week. This week, we need to map the concepts of the DSL to some code and some APIs we're going to program against. So, we're going to create a set of code templates for a code generator that can then read our DSL models and create persistence code for us."

"Developing rigorous and responsive web service client applications has always been a challenge for architects and developers working with SOA. JAX-WS 2.0 comes with one effective solution to this problem: asynchronous web service invocation. In this article, we will provide an exposition of this technology with examples built upon the reference implementation. The JAX-WS programming model offers two models for invoking operations asynchronously - polling and callback. Both methods allow the client to continue processing while waiting for a response."

Blueprints is a collection of interfaces, implementations, ouplementations, and test suites for the property graph data model. Blueprints is analogous to the JDBC, but for graph databases. As such, it provides a common set of interfaces to allow developers to plug-and-play their graph database backend. Moreover, software written atop Blueprints works over all Blueprints-enabled graph databases. Within the TinkerPop software stack, Blueprints serves as the foundational technology for: Pipes: A lazy, data flow framework Gremlin: A graph traversal language Frames: An object-to-graph mapper Furnace: A graph algorithms package Rexster: A graph server

The Fornax-Platform is a development platform for tools related to the Model-Driven-Software-Development - MDSD. In this context tools are cartridges, transforms, ready-to-use generators or simple enhancements to make it easier to work in a MDSD environment. Another approach is to provide Howto's and tutorials that simplify the undestanding of MDSD. The Fornax-Platform provides infrastructure and tools to simplify the management and the development of such components and tools. It is independent from companies in this area of software development.

A tutorial on how to create a web application using basic Spring MVC from spring-framework 3.0.5. We will design our web-based application based on the standard Spring MVC where request to the web-app will be routed to a Controller module, then to it's jsp View with data from our business Model

This post is to introduce the EMFT Texo project to you. The Texo project delivers code/artifact generation from ecore/xsd models for (web) server environments with additional runtime functionality. Texo aims to eventually also provide code generation solutions for the web client.

"Gremlin is a graph traversal language. The documentation herein will provide all the information necessary to understand how to use Gremlin for graph query, analysis, and manipulation. Gremlin works over those graph databases/frameworks that implement the Blueprints property graph data model. For example: TinkerGraph, Neo4j, OrientDB, DEX, Rexster, and Sail RDF Stores. 1 Please join the Gremlin users group at http://groups.google.com/group/gremlin-users for all TinkerPop related discussions. Finally, if you are a Gremlin user, please add to the Gremlin in the Wild wiki page with your specific Gremlin uses cases."