Architectural decision records

The purpose of this page is to keep a record of large technical decision, to track their progress and rational.

Template

The template for an architectural decision is as follows :

In the context of <use case/user story u>, facing <concern c> we decided for <option o> and neglected <other options>, to achieve <system qualities/desired consequences>, accepting <downside d/undesired consequences>, because <additional rationale>.

Decisions

todo, definition of done, https://www.ozimmer.ch/practices/2020/05/22/ADDefinitionOfDone.html

Add new decisions at the top.

Date	Author	Topic	Decision
2021-06-16	Olle Haerstedt	Fat models	In the context of fat models, facing lack of testability, we decided to move code to dependency injected service classes to achieve higher testability with unit-tests, accepting that readability might be slightly reduced (circular coupling between new service classes and old models, at least temporarily), because preventing regressions is more important right now.
2021-06-16	Olle Haerstedt	New features	In the context of new features, facing high degree of regressions, we decided to always add integrity tests to new features to prevent regressions and ensure adherence to specification, accepting that we might need to help external contributors with scaffolding and guidance, also accepting the extra development time, because testing is one of the best ways to prevent regressions long term and as the software changes and is touched by multiple developers.
2020-01-01	Team	Controller refactoring	In the context of controller refactoring, facing non-idiomatic Yii code (renderWrappedTemplate) we decided for refactoring of controllers and neglected other technical debt, to achieve idiomatic Yii code, accepting a long-term effort, because applying the Yii 1.1 framework correctly is important to lower the bar for new developers.