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I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

Cloud Design Patterns

In the past few months, I've been working a lot with distributed applications and more complex cloud architectures, both in terms of Stratospheric - From Zero to Production with Spring Boot and AWS (the eBook I'm currently writing together with Tom Hombergs and Philip Riecks) and client work. Microsoft's library of Cloud Design Patterns (as previously mentioned in this blog post) is a collection of cloud-related software and infrastructure design patterns that can help you with weighing up the merits of common ... Read more

Push Notifications with Amazon MQ – Sample From “Stratospheric – From Zero to Production with Spring Boot and AWS”

The following is an excerpt from the chapter on "Push Notifications with Amazon MQ" from the eBook "Stratospheric – From Zero to Production with Spring Boot and AWS" I'm currently writing together with Tom Hombergs and Philip Riecks. You can get the eBook over at Leanpub. Push Notifications With Amazon MQ As discussed in the chapter "Sharing Todos with SQS and SES" we might want to share our Todos with others. Being able to share Todos is already quite helpful for working on tasks ... Read more

Stratospheric – Almost in Orbit: Three More Chapters Available

Last week, we released the fourth version of of our eBook "Stratospheric - From Zero to Production with Spring Boot and AWS"! Again, about two months have passed since the last release in February 2021. We hope that you like the new content we've been working on during that time. These are the new chapters you'll get with the latest update: ​ Building a Continuous Deployment Pipeline: Software delivery performance is highly correlated with organizational performance, so we'll want to deploy often. That means ... Read more

A Simple Yet Powerful Tool: Decision Tables

Decision tables are a tool for specifying which actions to perform given a number of conditions. They represent business logic in terms of rules for connecting actions with required conditions for those actions. While they might appear deceptively simple and trivial they can be a tremendously powerful tool for defining business logic and certain types of software requirements. This article on Decision Table Patterns by Hillel Wayne describes the general concept as well as patterns, techniques, and best practices for using decision ... Read more

Cloudcraft – Cloud Architecture Diagrams and Visualisations

After recently having written about AWS cloud visualisation and management tools such as CloudMapper and Vantage I was made aware of yet another such tool by Sebastian Reuße: Cloudcraft allows you to not only visualise your AWS cloud architecture with beautiful as well as somewhat playful isometric infrastructure diagrams reminiscent of turn-based strategy games but also provides live connectivity with your actual AWS infrastructure and so-called "smart" components. Using these features you don't have to manually draw and recreate your existing infrastructure in ... Read more

Vantage – A Unified AWS Console

In last week's blog post I casually mentioned that out-of-the-box with AWS there's no single unified console providing you with an overview of your deployed infrastructure. Thankfully, there's Vantage - a centralized dashboard that provides you with such an overview and cost transparency across AWS regions and accounts through views, global search, and actionable insights. Up to $500 in monthly AWS spend Vantage is free. Beyond that there are Pro and Business plans at a monthly price of $50 and $250, respectively. Read more

CloudMapper: An AWS Visualisation Tool

CloudMapper is an AWS visualisation tool that's highly useful for getting an overview of your AWS infrastructure and network setup. Depending on the number of services, instances, VPCs, and subnets used, getting lost is quite easy, especially when considering that out-of-the-box with AWS there's no single unified console from which to get an overview of your deployed resources but rather a multitude of consoles, one for each AWS service. Therefore, keeping track of your infrastructure and keeping your costs in check can be ... Read more

Stratospheric – Three New Chapters!

Last week, we released the 3rd iteration of our eBook Stratospheric - From Zero to Production with Spring Boot and AWS. Roughly two months have passed since the last release in December 2020. We hope that we've made good use of this time by adding a few more chapters, as well as by improving and "refactoring" some of the already existing content. ​ The latest release contains these new chapters: Designing a Deployment Project with CDK: Building upon our First Steps with CDK we'll go ... Read more

Five Articles on Software Quality and Design Patterns

This week I'd like to point you to five articles I previously posted on this blog and from which I think that they're as relevant as they were at the time. The first three are about general software design principles, software architecture and software quality while the final two refer to specific best practices and common design patterns for Angular: Writing Disposable Code, Not Reusable Code (November 06, 2016) What Causes Over-engineering and How Can You Prevent It? (April 16, 2017) Less Is More ... Read more

Managing Permissions with IAM – Sample From “Stratospheric – From Zero to Production with Spring Boot and AWS”

The following is an excerpt from the chapter on "Managing Permissions with IAM" from the eBook "Stratospheric – From Zero to Production with Spring Boot and AWS" I'm currently writing together with Tom Hombergs and Philip Riecks. You can get the eBook over at Leanpub. Managing Permissions with IAM When deploying applications to a cloud service such as AWS, reliable security concepts are key. After all, we not only want to protect our users' data but also make sure that security within our organization ... Read more
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