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Manage spatial data with IBM DB2 Spatial Extender, Part 1: Acquiring spatial data and developing applications
This tutorial series describes common tasks to manage spatial data with IBM DB2 Spatial Extender, including importing and creating spatial data, constructing and executing spatial queries, working with IBM, third-party, and open source spatial tools, tuning performance, and considering special circumstances in a data warehouse environment. In this first article in the series, learn how to acquire spatial data and build applications. Learn how to use shapefiles, spatial data tables, and spatial indices.
Also available in: Chinese   Russian   Portuguese   Spanish  
Articles 24 Jul 2016
Compare the Informix Version 12 editions
Get an introduction to the various editions of IBM Informix, and compare features, benefits, and licensing considerations in a side-by-side table. Regardless of which edition you choose, Informix brings you legendary ease of use, reliability, stability, and access to extensibility features.
Also available in: Chinese   Russian   Portuguese  
Articles 22 Jul 2016
Get started with MongoDB on IBM Power Systems running Linux
MongoDB on IBM Power Systems running Linux is an ideal solution for managing big data workloads. Learn how to install MongoDB and begin using it with your application and data set today.
Articles 22 Jul 2016
Rational Performance Tester and Citrix troubleshooting and best practices
IBM Rational Performance Tester Citrix Extension uses the Citrix ICA simulation API to simulate virtual users' driving load. Because of the complexity of interactions between IBM Rational Performance Tester and the Citrix client software, performance testers sometimes encounter problems. This tutorial explores some common problems and offers solutions. You'll also find practices to help you optimize Citrix load testing.
Articles 21 Jul 2016
Machine Learning, Deep Learning 101
This article describes the growing relevance of Machine Learning used in various kinds of analytics along with an overview of Deep Learning. It provides an end-to-end process for using Machine Learning and Deep Learning and the options for getting started on IBM® Power Systems™.
Articles 20 Jul 2016
Ask Watson what Twitter is telling you, Part 3: Analyze tweet pictures for categorization and recognition
Quickly build an app to get data from Twitter and then use the data for cognitive insights by using IBM Watson services such as Tone Analyzer, Visual Recognition, and Alchemy. In just a few minutes, you can create a running Python app on Bluemix that analyzes pictures that are included in tweets.
Articles 19 Jul 2016
Integrate IBM BPM with the IBM Watson Tradeoff Analytics service on IBM Bluemix
Learn how to use the IBM Watson Tradeoff Analytics service on IBM Bluemix with IBM Business Process Manager (BPM) solutions to help your business process participants make decisions that balance conflicting goals and alternatives. A sample IBM BPM process application introduces essential artifacts applied in an implementation example.
Articles 18 Jul 2016
Manage state with Redux, Part 2: Using Redux with React
In this five-part series, see how the Redux library takes the pain out of JavaScript state management and makes it easy to implement features such as infinite undo/redo and live-editing time travel.
Articles 18 Jul 2016
Make secure API calls in IBM API Connect
Security is crucial when you are exposing back-end data services to applications, in particular to web and mobile applications. This tutorial shows how to add Transport Layer Security (TLS) profiles in IBM API Connect to connect your APIs to Secure Sockets Layer (SSL)-enabled back-end systems.
Articles 18 Jul 2016
Manage state with Redux, Part 1: Introducing Redux
In this five-part series, see how the Redux library takes the pain out of JavaScript state management and makes it easy to implement features such as infinite undo/redo and live-editing time travel.
Articles 18 Jul 2016
Java Streams, Part 5: Parallel stream performance
This fifth and final installment of the Java Streams series continues the previous installment's discussion of factors that influence the effectiveness of parallel processing, and applies them to the Streams library. Find out why some stream pipelines parallelize better than others, and see how to analyze your own streams code for parallel performance.
Articles 18 Jul 2016
Java Streams, Part 4: From concurrent to parallel
This fourth installment of the Java Streams series identifies and explains factors that determine the effectiveness of parallel processing, putting them into historical and technical context. An understanding of these factors provides a foundation for making optimal use of the Streams library for parallel execution. (The next installment applies the principles outlined here directly to Streams.)
Articles 18 Jul 2016
How to automate pre-release versioning of private npm modules with Travis CI
In this article, you'll learn how to automate pre-release version management through examples of combining npm dist-tags with Travis CI.
Articles 14 Jul 2016
The busy JavaScript developer's guide to Sails.js, Part 2: Models and blueprints
Models in Sails.js are represented by JavaScript objects, which can be stored in any type of data store -- relational, document-oriented, or something else. Develop your first model in Sails.js, then get started with Sails blueprints, which provide built-in support for the ubiquitous create, read, update, and delete features of data-driven applications.
Also available in: Chinese   Japanese  
Articles 12 Jul 2016
The busy JavaScript developer's guide to Sails.js, Part 1: Build and deploy a basic web app with Sails
Like so many server-side JavaScript frameworks, Sails.js makes it easier to build traditional web applications. Sails also embraces some of the ideas that made Rails revolutionary, bringing a new level of productivity to web and mobile development on top of Node.js. This first installment in a series features an overview of what makes Sails different, including its new-school approach to MVC architectures. You'll also set up your development environment and deploy a basic Sails application to IBM Bluemix.
Also available in: Chinese   Japanese  
Articles 12 Jul 2016
Learn Linux, 101: Create, monitor, and kill processes
Learn about process management on Linux: how to shuffle processes between foreground and background, find out what's running, kill processes, keep processes running after you've left for the day, and multitask in a terminal window. You can use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn for fun.
Articles 12 Jul 2016
Bring IoT home: Connect your car to your home
Use simple smart devices (a Raspberry Pi, Bluetooth device, and programmable power outlet strip) and a simple IoT platform (IBM Bluemix, IBM Watson IoT Platform, and MQTT) to turn on lights and appliances as your car approaches home.
Articles 12 Jul 2016
Create a baseball-themed app powered by Weather Company Data for IBM Bluemix and DBpedia
In this article, I describe how to build a baseball-themed app that provides a variety of information about each Major League Baseball park including the current weather.
Articles 11 Jul 2016
Cloud orchestration technologies: Explore your options
Take an in-depth look at the most popular cloud orchestration technologies for developing and deploying applications. This article provides an excellent starting point for understanding essential cloud orchestration concepts, and compares and contrasts the various orchestration mechanisms at a high level. If you're thinking about implementing a cloud orchestration solution, here's your chance to explore the pros and cons of each option.
Articles 11 Jul 2016
Configure your Bluemix Node.js authorization proxy to communicate with the user
In this article, you learn how a mostly transparent proxy can produce pop-up messages to communicate with the user. You send the user a small script that asks the proxy every second if there are any messages for it. When it gets a message, it covers the screen until the message is acknowledged. Using this technique, an authorization proxy can inform the user when an attempted action is unauthorized, and how to get authorization for it.
Articles 11 Jul 2016
Set up a docker private registry with basic HTTP authentication support
Learn how to set up a docker private registry with TLS and HTTP authentication on an OpenPower server running Red Hat Enterprise Linux (RHEL) 7.1 LE.
Articles 08 Jul 2016
IBM Bluemix Local on PureApplication System
IBM Bluemix is the IBM Platform as a Service that provides access to added-value services and compute resources. With a simple click of a button, you can provision and use services to create a whole new generation of applications. This article describes how to use IBM PureApplication System as an appliance to host Bluemix Local, combining the ease and speed of installing and deploying a preconfigured system with the power of the IBM cloud platform, all running in your own data center.
Articles 08 Jul 2016
Java Streams, Part 1: An introduction to the java.util.stream library
Explore the Java Streams library, introduced in Java SE 8, in this series by Java Language Architect Brian Goetz. By taking advantage of the power of lambda expressions, the java.util.stream package makes it easy to run functional-style queries on collections, arrays, and other data sets.
Also available in: Chinese  
Articles 06 Jul 2016
Java Streams, Part 3: Streams under the hood
Explore the Java Streams library, introduced in Java SE 8, in this series by Java Language Architect Brian Goetz. By taking advantage of the power of lambda expressions, the java.util.stream package makes it easy to run functional-style queries on collections, arrays, and other data sets. In this installment, learn how to fine-tune your queries for maximum efficiency.
Also available in: Chinese  
Articles 06 Jul 2016
Java Streams, Part 2: Aggregating with Streams
Explore the Java Streams library, introduced in Java SE 8, in this series by Java Language Architect Brian Goetz. By taking advantage of the power of lambda expressions, the java.util.stream package makes it easy to run functional-style queries on collections, arrays, and other data sets. In this installment, learn how to use the java.util.stream package to aggregate and summarize data efficiently.
Also available in: Chinese  
Articles 06 Jul 2016
Transitioning to a cloud-centric architecture
Follow an IBM development team's journey as they migrated to a cloud-centric architecture. Their technology choices, rationale, and lessons learned can help you transform your traditional Java Enterprise Edition applications to a lightweight set of microservices written in Node.js.
Articles 01 Jul 2016
Gaining better control in directing Live Partition Mobility (LPM) resource consumption
LPM is being increasingly used by system administrators in order to reduce operational downtime. For running Live Partition Mobility (LPM) with operational efficiency, we should consider the network that is going to route the traffic as well as the CPU cost on the mover service partition (MSP). The objective of this article is to demonstrate careful selection of resources during LPM operation, so that an administrator can enjoy better control over LPM traffic. This also brings in optimal performance and isolation of heavy LPM traffic from other workloads.
Articles 30 Jun 2016
Business analytics proven practices
Tried and true tips and advice on IBM business analytics products
Product overview 30 Jun 2016
What's new in WebSphere Application Server V9?
If you’ve been waiting for a reason to extend your development architecture to the cloud, now is the time with the release of IBM WebSphere Application Server V9. You can create applications with new features, optimize costs for application infrastructure, and connect existing applications and data to cloud services. This article presents a high-level overview of the new features and deployment options in WebSphere Application Server V9.
Articles 30 Jun 2016
Provide high availability and disaster recovery in IBM Bluemix
Find out how you can implement high availability (HA) and disaster recovery (DR) solutions for applications running in IBM Bluemix Local and Dedicated, as well as runtimes and services in all Bluemix platforms. We'll show you the differences between HA and DR, and then discuss the considerations for various Bluemix platforms and applications. We also describe the possible architectures for an HA/DR solution for Bluemix Local.
Articles 30 Jun 2016
Secure your web applications with Secure Sockets Layer (SSL) on IBM i
To protect data during transmission, applications and web servers commonly use Secure Sockets Layer (SSL) for encrypted communication. IBM® Web Administration for i provides an easy-to-use wizard to configure SSL for the Liberty based application servers, such as Integrated Web Application Server for i (IAS), Integrated Web Services Server for i (IWS) and stand-alone Liberty servers. This article provides an example that illustrates how to secure web applications on IAS servers.
Articles 30 Jun 2016
Modularize Angular applications with webpack
Modularizing an AngularJS application makes the code base easier to maintain as your project grows. Learn how to modularize an existing Angular application with the webpack module bundler, and learn best practices for incorporating modules into a new project.
Tutorial 29 Jun 2016
Ask Watson what Twitter is telling you, Part 2: Analyze the tweet text for emotions
Quickly build an app to get data from Twitter and then use the data for cognitive insights by using IBM Watson services such as Tone Analyzer, Visual Recognition, and Alchemy. You can drill down on the sentiments by analyzing the text right down to the sentence level. You then share your findings through a bar graph of emotions.
Articles 28 Jun 2016
Build a Bluemix app that rocks - in 10 minutes!
This article describes a simple app that demonstrates the true power of IBM Bluemix. The app, Node-RED, enables you to start using Bluemix in just 10 minutes. It uses Twitter feeds to create a graphic word cloud that illustrates the most commonly used words.
Articles 28 Jun 2016
Integrate Business Rules with Watson services on IBM Bluemix, Part 2: Build a job matching app with Play Framework that integrates Personality Insights and Business Rules services
This series guides you through creating an application that uses the Business Rules service on IBM Bluemix and automates decisions based on the results of the Personality Insights service. In Part 2, you develop an example personality-driven job matching application with Play Framework, and you deploy it on Bluemix with a custom Java build pack. The example application demonstrates how you can run, integrate, and deploy the Personality Insights, Business Rules, and ClearDB MySQL Database services on Bluemix.
Articles 28 Jun 2016
Tuning guide for MongoDB on IBM Power Systems
This tuning guide will help you achieve optimal performance when running MongoDB on IBM Power Systems by providing guidelines for system-level, virtualization-level and application-level tuning.
Articles 24 Jun 2016
Share data between different IBM WebSphere Portal applications
The Shared Data application object is one of the preinstalled application objects that are available to use with IBM WebSphere Portal Personalization rules. To use a Shared Data application object, you must use the Personalization API to initialize and set its properties. This tutorial shows how to set properties for a Shared Data object and then use those properties in a Personalization rule.
Articles 24 Jun 2016
Integrate Business Rules with Watson services on IBM Bluemix, Part 1: Build a Business Rules app that uses Personality Insights to match job applicants
This series guides you through creating an application that uses the Business Rules service on IBM Bluemix and automates decisions based on the results of the Personality Insights service. Part 1 describes how you can use the Business Rules service to construct and deploy business rules on Bluemix, based on the Personality Insights data. You learn how to define a Business Rules data model from the Personality Insights data model. Finally, you learn how to deploy and test the Personality Insights-driven Business Rules project on Bluemix.
Articles 23 Jun 2016
The evolving hybrid integration reference architecture
The surface area across which an organization must integrate has expanded dramatically in recent years. Integration must now treat cloud as a first-class citizen and cater to radically different requirements from a broader range of users. This article considers the primary drivers of change and the integration reference architecture that is evolving to meet the new demands.
Articles 22 Jun 2016
Ask Watson what Twitter is telling you, Part 1: Getting your Twitter credentials
Quickly build an app to get data from Twitter and then use the data for cognitive insights by using IBM Watson services such as Tone Analyzer, Visual Recognition, and Alchemy.
Articles 20 Jun 2016
How to collect data with BigFix Query
BigFix customers are medium- and large- sized companies that use the product to manage mostly software and security of a certain amount of computers (that amount may vary from dozens to tens of thousands). Many of these customers requested a way to quickly collect information from their environments because BigFix has not been natively built to provide high response times, but rather, persistence and effectiveness. In the first quarter of 2016, the BigFix Rome development team worked on a solution that was able to fulfill these requests; this solution is BigFix Query.
Articles 17 Jun 2016
XL C/C++ for Linux
Download a free trial of IBM XL C/C++ for Linux, a highly advanced optimizing compiler for selected Linux distributions.
Also available in: Chinese  
Trial Downloads 17 Jun 2016
Little endian and Linux on IBM Power Systems
IBM Linux on Power Chief Engineer, Jeff Scheel, answers your questions about little endian and Linux on IBM Power Systems in this FAQ
Articles 16 Jun 2016
Continuous Testing: An IBM point of view
Testing takes time and it is costly. Especially across multiple systems and platforms in the complex, hybrid cloud world. Teams that improve their test efficiency and effectiveness significantly reduce their expenses and the time it takes to get high-quality innovative solutions to end users. You can't test everything, and you can't automate everything, so it is critical to find the right subset of tests in the riskiest areas. Also key is service virtualization, which allows testing to begin as soon as a build is made, by mimicking missing dependencies. By combining test automation and service virtualization, teams test earlier, or "shift left," and continuously, so they gather feedback faster than ever.
Articles 16 Jun 2016
Dropped object recovery: A DBA's nightmare
Dropped objects in a DB2 for z/OS environment can be a database administrator's (DBA) nightmare. Not only is the data lost, but traditional recovery methods do not work in this situation. This article examines the dropped object dilemma and gives you four steps you can take to recover lost data and objects.
Tutorial 16 Jun 2016
Build a mobile web app for assisting stray dogs, Part 2
In this two-part tutorial, take advantage of developerWorks Premium and use PHP, Bluemix, and the Google Static Maps API to build and deploy a mobile-friendly app for reporting injured stray dogs to a central database.
Tutorial 15 Jun 2016
The busy JavaScript developer's guide to Sails.js, Part 3: Modeling relationships in Sails
Refactor your Sails.js application from a blog API to a more generalized content management system, then use associations to define the complex relationship between a single author and many entries. You also add comments and tags to newly created content in your rapidly growing HTTP API.
Articles 15 Jun 2016
Build a mobile web app for assisting stray dogs, Part 1
In this two-part tutorial, take advantage of developerWorks Premium and use PHP, Bluemix, and the Google Static Maps API to build and deploy a mobile-friendly app for reporting injured stray dogs to a central database.
Tutorial 15 Jun 2016
The busy JavaScript developer's guide to Sails.js, Part 4: Routes and controllers in Sails
Sails makes it easier than you might think to write custom controllers that do exactly what you want them to. Learn how to extend the default controllers that Sails produces for every model, setting up your HTTP API to handle just about any type of input or query.
Articles 15 Jun 2016
Use Swagger to document and define RESTful APIs
Swagger is a useful specification for generating documentation for RESTful APIs, but its output can lack all of the detail or features you need. Find out how you can enhance Swagger's native capabilities through the use of custom extensions, tools, and templates.
Articles 15 Jun 2016
Create a browser-based PDF storage and search application with Bluemix services, Part 1: Use the Document Conversion and Keyword Extraction services to convert and index files
In Part 1 of this two-part series, learn how to create a powerful, browser-based, document storage and search application that makes it faster and easier to search for relevant content in your documents. The application uses the Slim PHP micro-framework, together with Document Conversion and Keyword Extraction services from IBM Watson. IBM Bluemix provides object storage services and hosting infrastructure.
Articles 13 Jun 2016
Create a browser-based PDF storage and search application with Bluemix services, Part 2: Use the Object Storage service to store your files
Create a powerful, browser-based, PDF storage and search application that makes it faster and easier to search for relevant content in your document collection. It uses the Slim PHP micro-framework, together with Document Conversion and Keyword Extraction services from IBM Watson. IBM Bluemix provides object storage services and hosting infrastructure. Part 2 shows how to use upload and store your converted files.
Articles 13 Jun 2016
Cloudant best practices for a multi-tenant service
Learn best practices for improving the reliability and scalability of Cloudant for a multi-tenant service. This tutorial examines the organization of documents/databases, querying and deletion of documents, and performance considerations. Organizing documents and databases is a key factor in achieving scalability, and optimizing indexing performance is one of the most important factors in maintaining reliability. In addition, we provide best practices for improving client-side performance and reducing load on the service.
Articles 13 Jun 2016
Transitioning to a startup mentality
The transition to acting like a startup is rewarding, but it does take time. We started this project to see how an IBM development team could leverage the cloud to deliver significant value to IBM. We wound up with both a compelling solution for IBM and recognition as an innovative mobile and cloud development team. We hope our lessons learned help you on your journey.
Articles 13 Jun 2016
Creating a stand-alone Process Center profile in IBM BPM, Part 2: Configure a profile for IBM Business Process Manager V8.5.7 on Linux platforms
A stand-alone Process Center profile for IBM Business Process Manager (BPM) is useful in situations where memory and disk space are limited. In Part 1, you learned how to create a stand-alone Process Center Profile for Windows environments, and now in Part 2, learn the specific steps for a Linux environment. Rather than install the Process Center as a network deployment environment with at least three profiles running, plus an additional profile to support the unit test environment server, this series describes how a single profile can provide both a Process Center server and a unit test environment server.
Articles 13 Jun 2016
Certificate hassles? Manage both self-signed and CA-signed certificates in IBM WebSphere Application Server
Some IBM WebSphere Application Server Network Deployment environments require both self-signed and signed (certificate authority) SSL certificates for their hosted applications. When a mixture of certificate types is present in the keystore, you can encounter conflicts when you change or convert attributes, such as the key size and signature algorithm for the certificate. This tutorial explains how to fix certificate collision vulnerabilities and successfully replace an expired default certificate.
Articles 13 Jun 2016
Monitor DataPower virtual appliances from PureApplication System
This tutorial describes how IBM® PureApplication® System provides monitoring capability for IBM WebSphere® DataPower® appliances based on the IBM Tivoli® monitoring solution. It shows how to configure shared services to enable monitoring for DataPower appliances that run as virtual system patterns in PureApplication System.
Articles 10 Jun 2016
Build a user-facing OpenWhisk application with Bluemix and Node.js
Learn how to use OpenWhisk to write user-facing applications. This tutorial covers the basics of OpenWhisk through a simple application that you can build and expand to integrate with a Cloudant database. The sample application uses a small Node.js stub to allow it to be user-facing.
Articles 07 Jun 2016
Achieve your API strategy with IBM API Connect
To deliver on your API strategy, you need to understand your key stakeholders, their needs, and how API Connect can help to meet those needs. In this article you learn about these essential elements of an API strategy. You see how IBM API Connect goes beyond the limits of an API management platform, allowing your organization to not only manage and secure its APIs, but to also create and run them. Finally, you see how quickly you can get started with API Connect.
Articles 06 Jun 2016
Add your own authorization proxy to a third-party app
In this article, you learn how to use Bluemix Node.js to create an authorization proxy. This proxy can then perform authorization checks that are not supported by an original application, which might be a third-party app.
Articles 03 Jun 2016
What's new in IBM Security Guardium V10
In Version 10, IBM Security Guardium takes a major step forward with intelligence and automation to safeguard data, enterprise-readiness features, and increased breadth of data sources, including file systems. This article provides an in-depth technical review of all new and changed capabilities including database activity monitoring, vulnerability assessment, and file activity monitoring. This article, originally published in September 2015, was updated to include enhancements for the updates in Version 10.1 (delivered in June 2016).
Also available in: Chinese  
Articles 01 Jun 2016
Send and receive user-defined SOAP and REST messages from RPG
The integrated web services client for Integrated Language Environment (ILE) has been used for years to send SOAP messages by generating stubs that hide the details about the SOAP messaging protocol. However, it did not allow users to send user-defined payloads over the Hypertext Transfer Protocol (HTTP) transport. This article discusses the enhancements in the integrated web services client that allow you to bypass the stubs and send user-defined requests.
Articles 01 Jun 2016
Migrate your Cloud Foundry applications to containers on Bluemix
If you're currently running your Cloud Foundry applications on Bluemix, did you know that Bluemix also provides Docker-based container services? Migrating your Cloud Foundry (CF) apps to IBM Containers gives you all the agility, portability, and efficiency of Docker, along with the routing and service binding capabilities of Bluemix. This tutorial shows you how to migrate a CF application to a container on Bluemix, from development to deployment.
Also available in: Portuguese   Spanish  
Articles 01 Jun 2016
Quick start guide to Apache Bigtop v1.1 on IBM SoftLayer OpenPOWER with Ubuntu 14.04
This article outlines the process of installing the Apache Hadoop and Spark Bigtop v1.1.0 bundle on an IBM® SoftLayer® POWER8® bare metal server running Ubuntu 14.04. Apache Zeppelin notebook is included in the bundled installation script to run an initial benchmark suite.
Articles 01 Jun 2016
Manage your Auto-Scaling service using the REST API
Learn how to use the Bluemix Auto-Scaling service to make your application elastic by expanding application runtime metrics, such as memory, response time, and so on.
Also available in: Chinese   Portuguese   Spanish  
Articles 31 May 2016
Editor's picks: Top five WebSphere Liberty tutorials
If there is one thing that IBM WebSphere Liberty gives you, it's the freedom, and flexibility, to dynamically create applications both on-premises and in the cloud. This article highlights the top five tutorials in developerWorks for WebSphere Liberty.
Articles 31 May 2016
Test website availability with IBM Website Monitoring, Part 2: Uploading and running the Selenium script
IBM Website Monitoring is a one-stop solution for probing website availability and email alerts. This series guides you through the web monitoring process and helps you to understand the Selenium scripting techniques that are used.
Articles 31 May 2016
The basics of using Contexts and Dependency Injection (CDI) with WebSphere Application Server
Java EE 6 introduced a new set of features and services called Contexts and Dependency Injection (CDI). Java EE 7 added more features in this area. CDI relies on and provides services to other technologies introduced in Java EE 6. This article discusses the concept of dependency injection, why it is desirable, the problems it solves, how it is applied in Java EE, and its relationships with these other technologies.
Also available in: Chinese  
Articles 26 May 2016
Deploy a Meteor-based web and mobile chat server
Discover developerWorks Premium and host a private Rocket.Chat server on IBM Bluemix for your development team or friends/family, with you in full control. A developerWorks Premium membership can give you a head start on cloud services deployment.
Also available in: Chinese   Japanese  
Articles 26 May 2016
Build better applications with Contexts and Dependency Injection (CDI) in WebSphere Application Server
Contexts and Dependency Injection for Java (CDI) is part of JSR 346. CDI is fully supported in IBM WebSphere Application Server V8.5 and greater. This article discusses advanced topics in CDI. It includes examples and usage notes on stereotypes, interceptors, decorators, and events. It offers a solid foundation in CDI technology and concepts so that you can design and implement more maintainable applications.
Articles 26 May 2016
Use D3 and Angular for custom data visualizations
Build custom data visualizations with the D3.js library and incorporate them in your AngularJS apps.
Tutorial 26 May 2016
JVM updates in WebSphere Application Server V8: Using wsadmin and Jython to easily collect and report WebSphere Application Server PMI data
This article describes how you can use wsadmin introspection with Jython to easily retrieve Performance Monitoring Infrastructure (PMI) metrics for IBM WebSphere Application Server. IBM Tivoli Performance Viewer is used as a model for performance reporting. A high level review of PMI architecture is included.
Also available in: Japanese  
Articles 25 May 2016
How Grush built a smart toothbrush using the IoT architecture in the IBM Cloud Architecture Center
When startup company Grush set out to build a smart toothbrush, they turned to IBM's cloud and IoT platform to enable their toothbrush to capture real-time data and gamify the art of tooth brushing. Learn how they used IBM's products and the IBM Cloud Architecture Center to create their IoT device.
Articles 24 May 2016
Refactoring to microservices, Part 3: Roadmap to microservices adoption
Microservices are taking the development world by storm. In this 3-part series, "Refactoring to microservices," we'll cover why they matter, what factors to consider in planning your approach to microservices, the role of data factoring, and a step-by-step migration process. Part 3 lays out a roadmap for transforming your applications from a monolith to a set of microservices.
Articles 23 May 2016
Unlock the API economy value chain with IBM WebSphere Liberty and API Connect
Embrace the API economy by implementing the API economy value chain. In this article, you learn how to implement Java APIs and discover them by using WebSphere Liberty. You see how to import those APIs into IBM API Connect and publish them to a developer portal. By using this approach, app developers have a single location to find APIs, learn how to use them, and simplify integrating those APIs into their apps.
Also available in: Chinese  
Tutorial 20 May 2016
Translate text using the Watson Language Translation service
The IBM Watson Language Translation Service provides domain-specific translation as REST APIs, which you can then use to translate text from one supported language to another. The service also provides APIs to customize or train these models and to identify the language of the text.
Articles 18 May 2016
Build a hybrid mobile app with Ionic, Grails, and Bluemix
Use Grails and Ionic with the Eclipse IDE to develop a hybrid mobile item-ordering application that uses Bluemix as the host for RESTful back-end services.
Also available in: Spanish  
Tutorial 18 May 2016
A new way to analyze historical performance data on IBM i
As you cannot predict the future, the next best thing is to study the past. The Graph History function in IBM Navigator for i helps you do that. With Collection Services historical data and the Graph History function as part of the Performance task on the web, you can understand how your system performance compares to last week, last month, or even last year. Collection Services now provides a new collection type which aggregates a subset of data over long time periods. Performance Data Investigator can analyze and display this new historical data collection type. Historical data combined with the power to view and analyze it across days, weeks, and years provides new insight about system performance. This article describes how the Graph History function in IBM Navigator for i can help you understand your data, and how system performance changes over time.
Articles 18 May 2016
Editor's picks: Best tutorials on the power of Bluemix
It's been a few months since I last compiled a list of the top developerWorks tutorials about IBM Bluemix, and in this industry (as you know), a LOT can happen in a few months. So it's time to take another look. This time, however, instead of gathering up the most popular content on our site, I'd like to make a few recommendations of my own. developerWorks is fortunate to have an abundance of subject matter experts who have the insights and writing skills to guide you through complex development topics. Here are five recent tutorials that stand out as excellent demonstrations of the power of Bluemix. See how you can harness IBM's cloud platform in innovative (and yes, fun) new ways. Enjoy!
Articles 17 May 2016
Design and build secure IoT solutions, Part 1: Securing IoT devices and gateways
In this 3 part series of developing secure IoT solutions, the authors introduce IoT vulnerabilities and design challenges for secure IoT apps and then provide tested techniques for securing devices and gateways. For example, they discuss device authentication, including certificate-based authentication, device authorization, and application ID validation.
Also available in: Portuguese   Spanish  
Articles 16 May 2016
Inside IBM API Connect Version 5: An end-to-end demo
In this demo video, you see how to create and publish an application--from start to finish, on-premises to the cloud--with IBM API Connect Version 5. The practical example highlights the latest features of API Connect, including the offline developer toolkit experience and the ability to quickly create and customize a LoopBack application based on Node.js.
Also available in: Chinese  
Tutorial 16 May 2016
IBM's approach to open technology
For several years, IBM has been recognized as a leader in open technology, from its early work with Apache to its current work across all layers of the cloud stack and application development. This recognition comes on the back of tireless collaboration with fellow industry leaders and clients alike. The case for open is clear: Projects that are managed under open governance have been found to be more successful, have a longer life, and are less risky than proprietary projects. The most successful projects are those that ensure interoperability and portability, and address various other enterprise needs such as security, scalability, and accessibility. IBM isn't just an open source consumer; it is also an ardent contributor to several projects, including Eclipse, Linux, OpenStack, Cloud Foundry, Node.js, Docker, Hyperledger, and many more. The company's ongoing commitment to open technology is viewed as a means to form the very foundation of enterprise systems and solutions.
Articles 16 May 2016
Where and why: Demystifying virtual machine placement in IBM PureApplication System
IBM PureApplication System includes an intelligent placement engine that manages the placement of the virtual machines in your system to optimize availability and license usage, considering factors such as CPU and memory usage. This article describes in detail the two tiers of this placement engine and how they work to achieve these goals. It also discusses your options for configuring high availability in your system, and how placement decisions differ between PureApplication System, IBM PureApplication Software, and IBM PureApplication Service.
Also available in: Japanese  
Articles 16 May 2016
Design and build secure IoT solutions, Part 3: Securing IoT applications
Part 3 in this 3 part series of developing secure IoT solutions focuses on securing IoT applications. Learn how to securely store IoT data in a Cloudant database, expose that stored data through secured APIs, and invoke secured APIs from mobile and web applications.
Articles 16 May 2016
Design and build secure IoT solutions, Part 2: Securing IoT data over the network
Building on the techniques for securing IoT devices that the authors discussed in Part 1, Part 2 in this 3 part series of developing secure IoT solutions focuses on securing data over the network. It discusses data encryption and API security in the IBM Watson IoT Platform APIs.
Articles 16 May 2016
Blockchain and the sharing economy 2.0
We are at the beginning of the blockchain technology cycle. Bitcoin was the first and most notable application of the blockchain, but it is only the beginning. We now have a technology that can provide trust in a network without a central authority. Learn about the potential that the blockchain has for developers and what the future holds for this technology.
Also available in: Portuguese   Spanish  
Articles 12 May 2016
Route complex assignments with messages in IBM Business Process Manager
There are many ways to implement complex styles of assignments for your process participants with IBM Business Process Manager (BPM). This tutorial examines several useful patterns you can use to provide a more configurable inbox for your process participants with push or pull routing, more accurate statistics, and advanced error handling. All of these patterns use messages to route the assignments.
Articles 11 May 2016
Develop a flight search application using Watson Tradeoff Analytics
Learn how to use IBM Watson Tradeoff Analytics on Bluemix to create a app that helps users select the most convenient flight when traveling.
Articles 10 May 2016
Binder language export source in stream files
Starting in IBM i 7.3, the CRTSRVPGM, UPDSRVPGM, and RTVBNDSRC commands now process stream files containing binder language export source. With this enhancement, the binder language source can now reside in either a stream file or a physical file. This article describes this new support and how it can be used.
Articles 09 May 2016
Predictive Cloud Computing for professional golf and tennis, Part 5: Continuous integration and deployment
Techniques such as continuous deployment and integration, used throughout Predictive Cloud Computing (PCC), have enabled the development team to provide rapid and safe iterative improvements during professional golf and tennis tournaments. The results of the investment into continuous integration and deployment have enabled the team to focus on analytics and code, increasing team productivity.
Also available in: Chinese  
Articles 06 May 2016
Top three security tutorials (May 2016)
We know that you care first and foremost about protecting your assets. developerWorks Security continues to bring you the content you need to ensure that all of your precious data isn't at risk. Here are the top articles from the Security zone for Q1 2016. You don't want to miss out!
Articles 05 May 2016
Refactoring to microservices, Part 2: What to consider when moving your data
In this 3-part series, learn why microservices matter, what factors to consider in planning your evolution to microservices, the role of data factoring, and a step-by-step migration process. Part 2 delves into data decisions, and shows examples where refactoring your data for a microservices-based approach is (and is not) the best idea.
Also available in: Chinese   Spanish  
Articles 04 May 2016
Top 5 DevOps tutorials and more
Five recent must read pieces of content chosen for you by the developerWorks DevOps editor.
Articles 04 May 2016
Enhance mobile application security with Bluemix Mobile Services, Part 1
Use Bluemix Mobile Services and Facebook to secure mobile application data for Android and iOS.
Also available in: Chinese  
Articles 04 May 2016
Extend Java apps to mobile and cloud
Tips, considerations, best practices, and encouragement for extending existing Java-based enterprise transaction systems and systems of record to mobile applications deployed in cloud environments.
Also available in: Chinese   Japanese  
Articles 04 May 2016
Enhance mobile application security with Bluemix Mobile Services, Part 2
Extend your Bluemix mobile backend to securely send broadcast push messages to registered Android and iOS devices.
Also available in: Chinese  
Articles 04 May 2016
The latest and greatest Cognitive computing tutorials (May 2016)
Take a look at three of the latest and greatest tutorials from the various IBM Watson teams.
Articles 03 May 2016
Set up a multiserver environment for processing batch jobs with IBM WebSphere Liberty Java Batch
The Java EE 7 batch specification (JSR-352) describes a framework for processing large quantities of batch (non-real time) data transactions. IBM® WebSphere® Liberty implements this feature and supports operational extensions so that you can deploy multiple servers in a single batch environment. In its simplest form, the single-server Java batch environment is best suited for development purposes. This tutorial shows you how to set up a flexible production topology that consists of one dispatcher server and multiple executor servers. This multiserver topology provides more power than a single-server configuration and allows you to route messages to a specific server based on message properties.
Also available in: Chinese   Japanese  
Tutorial 03 May 2016
Build an Android app using Cloudant NoSQL DB and Push Notifications on Bluemix
Build an Android application using the IBM Cloudant NoSQL DB service on IBM Bluemix. This multi-part series will gradually build, with each part introducing you to new services. This tutorial includes a demo, sample code, and complete instructions for creating the BlueList Android application. You can apply what you've learned to integrate Cloudant NoSQL DB, IBM Push Notifications, and Node.js services into your own applications.
Also available in: Chinese   Russian   Japanese   Portuguese   Spanish   Spanish  
Articles 03 May 2016
Extend an Android app using the IBM Push Notifications service on Bluemix
Build an Android application using the IBM Push Notifications and Node.js services available on IBM Bluemix. This tutorial includes sample code and complete instructions for creating the BlueList Android application.
Also available in: Chinese   Russian   Japanese   Vietnamese   Portuguese   Spanish  
Articles 03 May 2016

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