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Tutorial - A Complete Design Walkthrough with Requirements Portal

Created: февраля 09, 2026 | Updated: февраля 12, 2026

The goal of this tutorial is to cover the most basic functionalities of Requirements Portal. In this tutorial, we will design a table fan with a set of requirements and blocks and then perform a mass budget analysis and dynamic analyses for user interaction. We will also develop a quality testing procedure.

Valifan
Valifan

The Valifan has some requirements that should be considered throughout the design phase. The fan assembly also has subparts.

Requirements:

  • The mass of the fan shall not exceed 300 g.

  • The mass of the propeller shall not exceed 50 g.

Blocks – the fan is the higher assembly. Inside that parent block, we will have the following:

  • Motor

  • Propeller

  • Speed Controller

  • Structure

A number of common terms used in Requirements Portal is listed below. Use the provided links to learn more. 

  • Vali – parameters of blocks or analyses that can be used in calculations and documentation. A vali has a numerical value and also contains additional information such as type, unit, formula, description, and min/max requirements.

  • Valitype – a type of a vali which is used to perform automatic calculations such as "sum of children". A type can be, for example, mass, power, or flight time.

  • Blocks – models of physical parts of your product that are represented with hierarchical relationships in a block tree.

  • Requirements – a way of managing a project’s requirements easily and efficiently.

The first step is to specify the product.

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