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4a1s/RAS/PL - Aula 3.md
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dg-publish: true
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4 de Outubro 2023 - #RAS
>[!help]+ Ex. 7.1
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>4. The product shall use always menu screens to communicate with the users.
>
>>[!hint]- Resolution
>>Option 2 is the correct one.
>>Option 1 does not constitute a valid system requirement.
>[!help] Ex 7.5
>The following are requirements of a controller of a swimming pool: R1: The input valves should be open when the swimming pool is filling. R2: The input valves stop when the level of the water reaches 2 m. R3: The level of the water should increase gradually. R4: The output valves must be open when the water is higher than 2.1 m. Which defects this set of requirements present?
>
>1. ambiguous
>2. solution-dependent
>3. incomplete
>4. not verifiable
>
>>[!hint]- Resolution
>>Option