System Architecture

A guide for creating system diagrams with concrete models

This article provides an in-depth explanation of the OSI Reference Model in computer networks, with a focus on the seven layers and their functions.

Nowadays, the focus of new software should be on software APIs. This requires the developers and architects to rethink their perspectives

Okay, maybe not everything you know about latency is wrong. But now that I have your attention, we can talk about why the tools and methodologies you use to measure and reason about latency are lik…

It was only a matter of time before somebody tried to bring BPF to the kernel's CPU scheduler. At the end of January, Tejun Heo posted the second revision of a 30-part patch series, co-written with David Vernet, Josh Don, and Barret Rhoden, that does just that. There are clearly interesting things that could be done by deferring scheduling decisions to a BPF program, but it may take some work to sell this idea to the development community as a whole.

Posted on Friday 10 Feb 2023. 1,294 words, 4 links. By Matt Webb.

It ensures that in the complex mesh of services comprising your API, every party handles requests securely and performs informed authorization decisions.

Human knowledge has naturally for centuries been captured in human friendly formats such as books, intended to be consumed by, you guessed it, humans. But our world has changed dramatically and we now live in a space where this needs to be shared with computers. Machine driven processing, learning, or intelligence requires access to human knowledge in digital formats. We have more or less completed the transition from paper into formats such a PDF, Word, Excel, HTML, but these are unstructured and not easily consumable or understandable by software. We need to take this one step further and transition into machine friendly JSON, XML, or RDF formats, whose structured can be well described by standard specifications, schemas, and models. This is often perceived as a monumental task, but can AIs such a ChatGTP help?

The Gherkin syntax helps you think through the process of a transaction with technology and then helps you write it down in a form that translates into programmer logic.

Multi-tenant architecture explained in simple words

The short answer is: yes it is. But since that answer doesn’t constitute a “real” article, let me expand on that a bit.

Let's take a look at one of Twitter alternatives: Mastodon. Will it scale?

StreetPass: Find your people on Mastodon

OpenZiti is dedicated to make the challenge of secure connectivity simple and accessible by replacing infrastructure with software. The world is software, your secure network needs to be software.

A next-generation sharing platform built on top of OpenZiti, a programmable zero-trust network overlay.

API monetization is quite complicated, and although there are multiple ways to meet the challenges, some are more efficient and scalable than others.

In this article, you will learn how to prevent broken connections when a Pod starts up or shuts down. You will also learn how to shut down long-running tasks gracefully.

Why bother?

In a lot of ways, the impact of the COVID-19 pandemic on The Kraft Group was no different than most other companies around the world. The organization – a

A deep dive into container scheduling and Flyd, our new orchestrator.

Are your feature flags states leaking between your test cases? Stub them all to make your test suite more reliable. Here’s how.

Susanne Kaiser illustrates the concepts of DDD, Wardley Mapping and Team Topologies, and demonstrates how these techniques help to evolve a fictitious legacy system for a fast flow of change.

In Linux, capabilities are a way to assign specific privileges to a running process. They allow us to have more fine-grained control over the privi...

Build your own language using Tree Notation.