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Benedict Roeser Posts

Vertical Slices: Let’s treat cars, houses and muesli like software

Published 2020-07-29

As a software developer, I’m used to the concept of vertical slices. They allow to be able to deliver value earlier, to iterate faster, or to create a proof-of-concept for evaluation/presentation. In software vertical slices are superior to horizontal ones (feel free to prove me wrong in the comments).

In other industries, this is not necessarily the case. Imagine pouring the foundation for a living room first, then building its walls, electricity etc. After everything is done you’d do the same for the kitchen. This would not only be ridiculously expensive, but also dangerous during earthquakes.

Despite building foundations though, there must be cases where the vertical slices make sense for non-digital industries, right? And with “make sense”, I mean

  1. valuable for customers
  2. valuable enough so that they’d actually be willing to pay extra for it*

* because these small slices create overhead and therefore may be costly

Let’s look at some fun thought experiments. The following examples are from industries I have honestly no clue about, so feel free to correct me in the comments:

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Symfony Guard component without using the whole framework

Published 2015-12-20

Implementing authentication in Symfony can be quite complicated. Even more so, if you attempt to use only the Security component without the whole framework. In this post I’ll show you, how you can use the Symfony Guard component with a form login and a logout link. So here’s what you can expect from implementing the code from this blog entry

  • Login with username and password by form
  • Stay logged in by using a session
  • Logout via Hyperlink “/logout”

My aim is to use as little components from Symfony as possible in this tutorial. Every project is different and I don’t know which components you might want to use.

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