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Fixed spelling and grammar errors
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edit approved Jun 12, 2017 at 14:24
Kyle A
edit approved Jun 12, 2017 at 14:24
Kyle A
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Defining non functional requirementsNon-Functional Requirements (modificabilitymodifiability, security and usability)

Im withI have some doubts about defining non functional-functional requirements relativelyrelative to security, modificabilitymodifiability and usability.

Relative to security for example a requirement for a system that needs to use https because it deals with financial information. ACan a security non functional-functional requirement for this can be "all transactions that involve financial information must be encrypted"? Because it seems to be a non functional-functional requirement, however dont seemsit doesn't seem measurable.

Relative to modificabilitymodifiability, specificaly in the case in which a system that must be implemented in a way that it is easy to add new functions. How can we define a non functional-functional requirement for this that its not vague and it is measurable?

And about usability, is "the system must present understandable error messages" isa non functional-functional requirement? Because itsit's not functional, however, its not measurable, so, it can it be considered a non functional-functional requirement? Also a requirementare requirements like "the interface must be responsive" and "the system must be cross browsing" are non functional-functional requirements relative to usability?

requirements

Defining non functional requirements (modificability, security and usability)

Im with some doubts about defining non functional requirements relatively to security, modificability and usability.

Relative to security for example a requirement for a system that needs to use https because it deals with financial information. A security non functional requirement for this can be "all transactions that involve financial information must be encrypted"? Because it seems a non functional requirement, however dont seems measurable.

Relative to modificability, specificaly in the case in which a system that must be implemented in a way that it is easy to add new functions. How can we define a non functional requirement for this that its not vague and it is measurable?

And about usability, "the system must present understandable error messages" is non functional requirement? Because its not functional, however, its not measurable, so, it can be considered non functional requirement? Also a requirement like "the interface must responsive" and "the system must be cross browsing" are non functional requirements relative to usability?

requirements

Defining Non-Functional Requirements (modifiability, security and usability)

I have some doubts about defining non-functional requirements relative to security, modifiability and usability.

Relative to security for example a requirement for a system that needs to use https because it deals with financial information. Can a security non-functional requirement for this be "all transactions that involve financial information must be encrypted"? Because it seems to be a non-functional requirement, however it doesn't seem measurable.

Relative to modifiability, in the case in which a system must be implemented in a way that it is easy to add new functions. How can we define a non-functional requirement for this that its not vague and is measurable?

And about usability, is "the system must present understandable error messages" a non-functional requirement? Because it's not functional, however, its not measurable, so can it be considered a non-functional requirement? Also are requirements like "the interface must be responsive" and "the system must be cross browsing" non-functional requirements relative to usability?

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Defining non functional requirements (modificability, security and usability)

Im with some doubts about defining non functional requirements relatively to security, modificability and usability.

Relative to security for example a requirement for a system that needs to use https because it deals with financial information. A security non functional requirement for this can be "all transactions that involve financial information must be encrypted"? Because it seems a non functional requirement, however dont seems measurable.

Relative to modificability, specificaly in the case in which a system that must be implemented in a way that it is easy to add new functions. How can we define a non functional requirement for this that its not vague and it is measurable?

And about usability, "the system must present understandable error messages" is non functional requirement? Because its not functional, however, its not measurable, so, it can be considered non functional requirement? Also a requirement like "the interface must responsive" and "the system must be cross browsing" are non functional requirements relative to usability?

requirements