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4 de Outubro 2023 - #RAS
[!help]+ Ex. 7.1 The use of a natural language (for instance, English or Spanish) and intuitive diagrams is used for documenting user requirements. What is the main reason?
- To eliminate the communication difficulties among the stakeholders.
- To facilitate understanding
- To have no ambiguities
- To be precise
[!hint]- Resolution Option 2 is the correct one.
[!help]+ Ex. 7.2 Which of the following sentences does not constitute a valid system requirement?
- The product shall be developed using an agile method.
- The product shall respond to all requests in less than 5s
- The product shall be composed of 12 modules.
- The product shall use always menu screens to communicate with the users.
[!hint]- Resolution 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?
- ambiguous
- solution-dependent
- incomplete
- not verifiable
[!hint]- Resolution Option 1 is the correct one.
[!help] Ex. 7.6 Analyse the following user requirements and indicate if they are clear and verifiable. If not, reformulate the wording.
- The communication system can only "crash", at most, once a month.
- The system shall be easy to learn by students with minimal training.
- The average delay for the users of a system to pay tolls shall be less than 15s.
- All users shall use the same mobile application.
[!hint] Resolution
- The communication system shall be available 95% of the time.
- Users of the type students shall correctly use 80% of the system features with 20h of training on it.
- More than 90% of the users