Component- and package diagrams can communicate hierarchies, as both UML components and packages can be nested.
For examples, see the following questions:
Prefer to learn arc42 hands-on?
Practical architecture training, most classes taught by Peter Hruschka and Gernot Starke — the people who created arc42 and maintain this FAQ (dates with other trainers say so) — and solid preparation for iSAQB certifications.
Next dates
- 15–17 Sep 2026 DE Req4Arc · Frankfurt/Maingetting your requirements right
- 29 Sep–1 Oct 2026 EN Mastering SW Architectures · onlineperfect preparation for iSAQB CPSA-Foundation certification · with Wolfgang Reimesch
- 27–28 Oct 2026 DE ADOC · Züricharchitecture documentation · with Gernot Starke
- 24–26 Nov 2026 DE IMPROVE · Hamburgevolve and maintain systems · with Carola Lilienthal & Gernot Starke
- 1–4 Dec 2026 DE Mastering SW Architectures · Münchenperfect preparation for iSAQB CPSA-Foundation certification
- 23–25 Feb 2027 EN Mastering SW Architectures · onlineperfect preparation for iSAQB CPSA-Foundation certification · with Wolfgang Reimesch
- 2–5 Mar 2027 DE Mastering SW Architectures · Münchenperfect preparation for iSAQB CPSA-Foundation certification
- 9–11 Mar 2027 DE Req4Arc · Münchengetting your requirements right
All courses and dates: trainings.arc42.org · as of 16 Aug 2026