As a modern application developer you need to understand the emerging field of data management, both RDBMS and NoSQL. Seven Databases in Seven Weeks takes you on a tour of some of the hottest open source databases today. In the tradition of Bruce A. Tate's Seven Languages in Seven Weeks, this book goes beyond your basic tutorial to explore the essential concepts at the core each technology. Redis, Neo4J, CouchDB, MongoDB, HBase, Riak and Postgres. With each database, you'll tackle a real-world data problem that highlights the concepts and features that make it shine. You'll explore the five data models employed by these databases-relational, key/value, columnar, document and graph-and which kinds of problems are best suited to each. You'll learn how MongoDB and CouchDB are strikingly different, and discover the Dynamo heritage at the heart of Riak. Make your applications faster with Redis and more connected with Neo4J. Use MapReduce to solve Big Data problems. Build clusters of servers using scalable services like Amazon's Elastic Compute Cloud (EC2). Discover the CAP theorem and its implications for your distributed data. Understand the tradeoffs between consistency and availability, and when you can use them to your advantage. Use multiple databases in concert to create a platform that's more than the sum of its parts, or find one that meets all your needs at once.Seven Databases in Seven Weeks will take you on a deep dive into each of the databases, their strengths and weaknesses, and how to choose the ones that fit your needs.What You Need: To get the most of of this book you'll have to follow along, and that means you'll need a *nix shell (Mac OSX or Linux preferred, Windows users will need Cygwin), and Java 6 (or greater) and Ruby 1.8.7 (or greater). Each chapter will list the downloads required for that database.

    But in a world obsessed with the new, where cool added features often trump actual customer needs, it’s the consumer who suffers. In our quest to be more agile, we end up creating products that underwhelm.So how does a company like Nest, creator of the mundane thermostat, earn accolades like “beautiful” and “revolutionary” and a $3.2 billion Google buyout? What did Nest do differently to create a household product that people speak of with love?Nest, and companies like it, understand that emotional connection is critical to product development. And they use a clear, repeatable design process that focuses squarely on consumer engagement rather than piling on features for features’ sake.In this refreshingly jargon-free and practical book, product design expert Jon Kolko maps out this process, demonstrating how it will help you and your team conceive and build successful, emotionally resonant products again and again.The key, says Kolko, is empathy. You need to deeply understand customer needs and feelings, and this understanding must be reflected in the product. In successive chapters of the book, we see how leading companies use a design process of storytelling and iteration that evokes positive emotions, changes behavior, and creates deep engagement. Here are the four key steps:1. Determine a product-market fit by seeking signals from communities of users.2. Identify behavioral insights by conducting ethnographic research.3. Sketch a product strategy by synthesizing complex research data into simple insights.4. Polish the product details using visual representations to simplify complex ideas.Kolko walks the reader through each step, sharing eye-opening insights from his fifteen-year career in product design along the way.Whether you’re a designer, a product developer, or a marketer thinking about your company’s next offering, this book will forever change the way you think about—and create—successful products.

    It took the open source world by storm since its inception in 2005, and is used by small development shops and giants like Google, Red Hat, and IBM, and of course many open source projects.A book by Git experts to turn you into a Git expert. Introduces the world of distributed version control Shows how to build a Git development workflow.