https://nalar.dev/tags/state-machines/ Recent content in State Machines on Nalar Hugo en-us Thu, 03 Sep 2026 00:00:00 +0700 https://nalar.dev/modeling-workflows-with-explicit-state-transitions/ Thu, 03 Sep 2026 00:00:00 +0700 https://nalar.dev/modeling-workflows-with-explicit-state-transitions/ <p>Many business objects have a lifecycle. An order may be created, approved, fulfilled, or cancelled. A support ticket may be open, assigned, resolved, or reopened. Problems begin when those lifecycle rules are represented only by a status field and scattered <code>if</code> statements.</p> <p>As the system grows, different code paths can start disagreeing about which changes are legal. One handler allows a cancelled order to be approved, another silently ignores the request, and a third checks a different set of statuses. The status values are visible, but the rules connecting them are not.</p>