Posts Tagged: quality assurance

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Dimensions of Software Quality: Outcomes, Continuity, Cohesion and Coupling

IT consultant Erik Dietrich wrote this interesting article about his approach for evaluating software quality from a business perspective. He suggests these 2 questions as the main business considerations when it comes to software quality: Does the software do what it’s supposed to do? Can I easily change what the software does? In other words: Software quality is determined by both outcome and continuity (the extent to which software allows for changing circumstances, see Jeff Sussna's book Designing Delivery for more information on this matter) The ...
February 4, 2018 by Bjoern in Enterprise Software, Software 0 Comments
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Test-driven Development (TDD) with Angular 2 / 4

Recently, together with Jan Massenberg of Setlog I gave a talk on test-driven development (TDD) with Angular at the 2nd Angular Ruhr meetup. Currently, I help Setlog with improving their software quality and in particular with developing a SaaS tool that simplifies quality assurance processes (QA) in supply chain management. The talk was about hands-on experience with using TDD for implementing this SaaS tool. This article (sorry, German-only) summarises the key aspects of the talk and goes into some more detail regarding the various ...
October 22, 2017 by Bjoern in Enterprise Software, Front End Development, Software 0 Comments
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Agile Med Dev: Software Testing for Medical Devices

Medical devices software engineer Julien Zaegel wrote an interesting series of articles on medical devices software testing. These articles provide an overview of as well as several useful insights on the specifics of testing medical devices software and software in general. When it comes to automated and manual software testing for medical devices there are several aspects you don't usually have to deal with when testing more common kinds of web or business applications: With medical systems human lives are at stake. Medical devices ...
October 15, 2017 by Bjoern in Business, Enterprise Software, Software 0 Comments
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Designing Delivery and Moving Beyond Products

I'm a frequent attendee at Lean DUS, a regular event organised by the fantastic folks of sipgate. Earlier this year at LEAN DUS #23 Jeff Sussna gave a talk on moving beyond products and unifying design and operations. Jeff runs a consulting company called Ingineering.IT, which aims to help businesses to establish a comprehensive, continuous service delivery process. He also condensed his expertise in a book called Designing Delivery, which outlines a continuous value creation process involving design thinking, agile software development and ...
May 28, 2017 by Bjoern in Enterprise Software, Software 0 Comments
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Testing REST Services with REST Assured

RESTful service testing can be unwieldy and difficult to get started with. Providing a REST API implies using a variety of technologies and techniques such as HTTP, JSON, authentication, various payload transfer mechanisms and content types. This is where a tool that abstracts over these technical details and facilitates their application comes in handy. REST Assured is a high-level DSL for testing REST APIs. It draws upon behaviour-driven development (BDD) and hence makes for readable test descriptions. A typical acceptance test with ...
April 30, 2017 by Bjoern in Enterprise Software, Software 0 Comments
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The Art of the README

Just recently I was reminded about an obvious and vital but all too often neglected aspect of good quality software: Creating and maintaining a README file to both onboard new developers and to get users started with your software easily. While certainly essential in the context of open source software maintaining a high quality README is also relevant regarding proprietary / company-internal software that's limited to only a select circle of developers and users: It enables both your customers and internal users ...
April 23, 2017 by Bjoern in Software 0 Comments
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Clear Acceptance Criteria: The Key to Good Software Quality Right from the Start

Actually it should come as no surprise that clear acceptance criteria are a quintessential prerequisite for high quality software that meets both design requirements and customer demand. All too often however, acceptance criteria for software products are either non-existent or vague and ambiguous at best. Who hasn't come across 'acceptance criteria' such as "The app should have a modern UI." or "The application should be easy to use."? What do bromides like that amount to? Not much, unfortunately. Elena Kulik of RubyGarage wrote ...
April 9, 2017 by Bjoern in Software 0 Comments
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Keeping database schemas up-to-date with Flyway

At least ever since Ruby on Rails' Active Record Migrations put an emphasis on keeping database schemas consistent with your software's source code both during development and in production database migration tools have become a staple in modern software development. Database migration (or database refactoring as this technique is sometimes called as well) tools allow you to apply data definition language (DDL) statements like "CREATE TABLE ..." or "ALTER ..." to databases in an automated, consistent and traceable manner instead of either ...
March 12, 2017 by Bjoern in Enterprise Software, Software 0 Comments
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Writing Disposable Code, Not Reusable Code

In an article about common software over-engineering mistakes Subhas Dandapani provides a lot of useful insights on why software often is over-engineered - sometimes to the extent it becomes unmaintainable. From my experience, the by far most frequent cause of over-engineered and overly complex software is engineers trying to anticipate requirements and potential future use cases. Everything has to be abstract in order to accommodate any possible use case business might come up with. Repetition is generally regarded as waste. Engineers hate ...
November 6, 2016 by Bjoern in Software 0 Comments
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Mockito 2 now available

Last week version 2.1.0 of the Mockito testing framework for Java has been released. For more information on this latest iteration check out this page. As the name suggests, Mockito allows you to mock object behaviour during unit tests. When writing unit tests you only want to test a particular unit's behaviour (hence the name). Depending on the programming language used such a unit might be a function, a procedure or - most commonly in today's object-oriented programming environments - a ...
October 16, 2016 by Bjoern in Enterprise Software, Software 0 Comments
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