Exploring declarative domain paradigm — I want to introduce you to Declarative Swift — a coding style that allows us to efficiently and effectively create domain-driven code that is easy to verify. Writing code like this has proven to be faster than conventional coding, while it offers less room for bugs to hide in. Domain Examples Let’s…

A deep dive into this fully declarative and immutable solution for everyday projects — MVVM-(X), VIP, VIPER — all these so-called architectures have two things in common: They all trace their ancestry to Robert C. Martin’s Clean Architecture. I have not seen one of those being valid architectures in iOS. …

I want to introduce a fabulous game. It requires strategic thinking, courage, psychology, negotiation skills — and the occasional backstabbing. It is aptly named «Diplomacy». It is set in Europe of 1901 in the prelude to World War I. The game’s objective is to occupy at least half of the…

Immutable yet fun — In this article I want to show you how to implement the Snake game in Swift and — as you probably never heard of it before — introduce you to the Declarative Domain (DD) Paradigm, which I’ll be using. The goal is to produce a game fast and effectively while…

How to use Swift’s Types to create modules — Datatypes, UseCases, Features — that will be controlled through a vocabulary defined by their Domain Specific Languages (DSL) — As these vocabularies are finite sets, this kind of coding has proven to enable the coding of even complex domains in simple fashions and in very little time — think hours, whereas conventional coding needs weeks. DSL Interfaced Datatypes

Let me show you “Khipu,” an architecture with a twist: It uses DSLs (Domain Specific Languages) to encode business logic and connect different modules — The UseCase Module UseCases are the main architectural building blocks in Khipu. They define Requests and Responses. In most cases, a request is passed to an UseCase which will respond synchronously or asynchronously with a response. UseCases implement a protocol with associated types — a “PAT.”

In this article, I want to introduce you to what I call “Axiomatic Coding” which results in easy-to-understand code and uses a style that is simple to scale to any size — from small games to full-featured apps with a multitude of functionality. I’ll be using Swift, as its type…

Code Katas are training codes that experinced coders use to evaluate their current coding abilities. Transforming integers into string…

Using Engineering and Science principles — Real world objects are subject to the “Production Problem”: While designing those objects can be an interesting and challenging task, the real challenges lay within scaling up production to create thousands and millions of copies while consistent quality is being maintained over time. The omnipresence of this production model has…