MBSE with Arcadia » Hélder Castro

From Process Architecture to Toolchain Architecture: Modelling the Resources that Enable Engineering Work

In the previous article, I discussed how model-based approaches can be used to capture engineering processes as connected structures of roles, activities, artefacts, responsibilities and information exchanges. Traditional process documentation often describes what should happen. A model-based process architecture can go further by representing how…

From Process Documentation to Process Modelling: A Model-Based Approach

By Hélder Castro Architecture, MBSE

Engineering organisations often define their processes using documents, flowcharts, spreadsheets and review templates. These artefacts are useful, but they often remain disconnected from each other.A process may be described in one document. Responsibilities may be listed in another. Artefact templates may sit in a separate…

A practical MBSE development built on templates for clear architecture decisions

By Hélder Castro Arcadia, MagicGrid, MBSE

System architecture models are rarely challenged because they are wrong; they are challenged because they are hard to navigate, hard to scope, and hard to review consistently.Reviews often fail not due to technical gaps, but due to unclear expectations: what should exist, in what order,…

How to perform Capella–IBM DOORS 9.x round‑trip synchronisation for textual requirements: step-by-step guide

By Hélder Castro Capella, Guides, Textual Requirements

This guide describes step-by-step how to export and import textual requirements between IBM Doors 9.7 and Capella modelling tool. The below figure shows the initial process considerations when authoring textual requirements and designing the system in Capella: Textual requirements and Capella traceability modelling process For…

Simple Process for Architecture Development with MagicGrid

By Hélder Castro MagicGrid, Matrix step-by-step, Video

When a new Model-Based System Architecture (MBSE) model or during the system architecture modelling development, stakeholders involved or with an interest on, may ask and express different understandings and modelling expectations: What modelling activities and artefacts content should be produced? What are the artefacts relationships…

Considerations for Model-Based Requirements Engineering

By Hélder Castro Textual Requirements

Introduction The fully automated creation of textual requirements from Model-Based System Engineering (MBSE) model elements, and vice-versa seems to remain a dream in the near future. This article captures considerations and requirements patterns step-by-step for creating high quality textual requirements. It is also described an…

A guide for writing good requirements

By Hélder Castro Textual Requirements

Writing good requirements building blocks his article is based on the INCOSE Guide for Writing Good Requirements (GfWR). The guide defines a set of characteristics, rules and attributes to specify good requirements. This can be seen as four building blocks that underpin the Writing good…

How to configure Capella for ReqIF import and high-level textual requirements traceability

By Hélder Castro Capella, Textual Requirements

The role of textual requirements and MBSE In most engineering practices today, requirements constitute the main vector for managing technical contracts between customers and suppliers, at any level of the breakdown. Quite often customers express their needs as requirements using natural language and suppliers analyse,…