Sunday, April 14, 2019

Chapter - 11 Non Functional Requirements


The Non – Functional Requirements are those which shows that how the product look like. Along with the functional, the non – functional requirements are equally important for the success criteria of a product. There is a checklist to list pot the non – functional requirements based on the product features and demands of the stakeholders. These are:

·       Look and Feel Requirements (Type 10)
·       Usability and Humanity Requirements (Type 11)
·       Performance Requirements (Type 12)
·       Operational and Environmental Requirements (Type 13)
·       Maintainability and Support Requirements (Type 14)
·       Security Requirements (Type 15)
·       Cultural Requirements (Type 16)
·       Legal Requirements (Type 17)

3 comments:

  1. Non- functional requirements describe the quality attributes of a solution. The terms of the non-functional requirements must consider them as a basic essential for effective It projects. The other categories of non-functional requirements are:
    1. Operation requirements
    2. Revision requirements
    3. Transition requirements

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  2. Some other examples of Look and Feel requirements:
    • Simple to use
    • Approachable –no hesitation to use it
    • Professional looking
    • Authoritative –trustworthy
    • Attractive to the target group
    • Consistent with the client's other products.
    • Innovative and appearing to be state of the art
    • Unobtrusive –users aren’t aware of it
    • Cool
    • Exciting

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  3. Non-Functional Requirements are also important because they have the potential to affect the sales of any product or service. As an example, if a software company developed a really useful accounting software but it had a very complex interface that its users are making mistakes frequently, then software is likely to fail even though after providing a lot of features.

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Chapter - 12 Fit Criteria and Rationale

 Fit Criteria and Rationale Fit Criteria :  "Fit" means implies an answer totally fulfills or matches the business requirement...