Domain-Driven Design in an Evolving Architecture
Mat Wall and Nik Silver explain how their has been using Domain-Driven Design in an evolving and Agile environment, at high traffic news site guardian.co.uk.
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All content and news on InfoQ about Object Oriented Design
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News about Object Oriented Design
Object Relational Mapping - User Case Studies
Roberto Zicari, from ODBMS.org, collected interviews and stories from several users of Object/Relational mapping technologies. The main point of the cases was around "impedance mismatch" between the object technology in the domain model and the relational technology in the data model.
Neo4j - an Embedded, Network Database
Neo4j is an embedded network model database for Java, Ruby and Python applications. It is capable of handling billions of nodes/relationships/properties on single machine hardware, supporting ACID transactions, durable persistence, concurrency control, transaction recovery, and everything else you’d expect from an enterprise-strength database.
Rails Cells: Component-Oriented Development for Rails
Rails Cells aims to bring component-oriented development to Rails with its lightweight controllers and views that can easily be shared and reused. We caught up with Nick Sutterer, one of the Cells developers, to talk about the state of the project.
Articles about Object Oriented Design
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Using singleton classes for object metadata
So you have a bunch of objects - let's call it an object graph - provided by some API. Now you want to to process the objects - which requires some intermediate data, for instance: the process creates some metadata that needs to be stored with the objects. The problem: where to store the metadata? We'll show how to use Ruby singleton classes to handle this problem.
Book Review: Implementation Patterns
Kent Beck's new book, Implementation Patterns, is a book about writing code in Java. The patterns in this book are based on Kent's reading of existing code as well as his own programming habits. The patterns in this book are meant to be a coherent view of how to write code people can understand that serves human as well as economic needs.
Interviews about Object Oriented Design
Eric Evans on Domain Driven Design
Ever since Eric Evans wrote the book Domain-Driven Design in 2004 he has been a significant voice advancing domain modeling and design concepts. In this interview with Floyd Marinescu he talks about some of the recent refinements in Domain-Driven Design and how people are advancing the field today.
Presentations about Object Oriented Design
Eric Evans on DDD: Strategic Design
This talk introduces two broad principles for strategic design. 'Context mapping' addresses the fact that different groups model differently. 'Core domain' distills a shared vision of the system's "core domain" and provides a systematic guide to when "good enough" is good enough versus when to push for excellence.
DDD: putting the model to work
This talk will outline some of the foundations of domain-driven design:How models are chosen and evaluated;How multiple models coexist;How the patterns help avoid the common pitfalls, such as overly interconnected models;How developers and domain experts together in a DDD team engage in deeper exploration of their problem domain and make that understanding tangible as a practical software design.