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Evolution of Systems Integration

Systems integration has been a tough problem from the beginning of the use of software systems in the enterprises. This had taken many faces in the last coupe of decades and is still evolving as other factors of the computing. At the very beginning people used to design heterogeneous monolithic systems to automate certain parts of their business and the ...

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A Balanced Product Scorecard

Summary Product scorecards are an important product management tool: They help you track the performance of your product. Unfortunately, many scorecards show only financial and customer key performance indicators (KPIs). While these indicators are undoubtedly important, ignoring other KPIs can create distorted view of reality and result in wrong decisions. This articles introduces a balanced product scorecard—a scorecard that provides ...

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#NoEstimates episode 2 – THE ANSWERS

A normal person would expect that sharing free content doesn’t create controversy. Well this normal person is wrong. A couple of weeks back I shared a report on #NoEstimates based on my adoption experience in the last 2-3 years. I got some thanks, some praise, but mainly aggravation. I had noticed this trend before when tweeting about #NoEstimates, when a group of individuals taunted ...

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JUnit 5 – A First Look at the Next Generation of JUnit

In the beginning of February, the JUnit 5 (aka JUnit Lambda) team has published an alpha release. Since JUnit 4 is among the most used items in my toolbox I thought it might be worth to have a look at the next major release. I took the latest build for a spin and noted down the changes that I found noteworthy here. ...

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Contract First SOAP Service with Spring and Maven

1. Introduction In this tutorial, we will learn to implement a contract-first SOAP service application using JAX-WS, Spring and Maven. This is more of a design decision whether to use contract-first or code-first approach. The most notable benefit of using applying contract-first approach in developing a SOAP based web service application, is that the contract can be shared with the consumers/clients ...

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Constructor or setter?

It goes without saying that every object needs to be created before it can be used. It does not matter whether we are talking about a domain, frameworks, libraries or any other type of the classes. When your code is an Object-Oriented, those classes are only definitions of the objects. You cannot use objects before they are created. When we ...

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Learn about JDK9 Compact Strings (Video review Charlie Hunt)

JDK 9 introduces a new feature called Compact Strings.  Given the ubiquity of Strings in Java programs I feel that this is a really important change that needs to be understood by all Java developers. In this video Charlie Hunt explains the history and implementation of this new feature.  The video is not actually about Compact Strings. Compact Strings are ...

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Spring Boot with Scala

spring-interview-questions-answers

A while back I had tried out a small Spring Boot  based sample with Scala as the language and found that the combination works out quite nicely – no big surprises there actually as Scala programs ultimately run in the JVM. I have now updated the sample with the latest version of Spring Boot and some of the supporting libraries. ...

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How to install Red Hat Container Development Kit (CDK) in minutes

As an application developer or architect tasked with exploring the possibilities that containerized applications offer, there is little help with getting all the tools together to get you started. Until now. Red Hat provides a Container Development Kit (CDK) that has all the tooling you need for your local OSX, Linux or Windows environment. It also has a few containers ...

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#NoEstimates a simple experience report

I’ve been practicing #NoEstimates with my teams for the last 2-3 years if you want to know how it worked for us, read below. First of all an answer to all the people that in these years have been telling me “Yes, but if you are breaking user stories down, then you are estimating” Not at all #1: There is ...

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