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Non Functional Requirements

Software updates and maintenance

Non Functional Requirements: Maintainability

Maintainability is how easy it is for a system to be supported, changed, enhanced, and restructured over time. Understanding up front how maintainable software needs to be for a certain project is important, due to its impact on your architecture. This impact makes maintainability an important non-functional requirement to consider …

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non functional (interoperability)

Non-Functional Requirements (Interoperability):

In the sea of non-functional requirements, interoperability is defined as how easily a system can share information and exchange data with other systems and external hardware. Interoperability is often overlooked, much like other non-functional requirements because analysts and stakeholders often focus on the application’s functional requirements rather than the semantics of …

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Gesture Mapping for Mobile Interfaces

Look around you. Many of the tasks we once relied on a desktop or laptop to perform are now done on our phones and tablets. While that’s great news for our airplane carry-ons, it isn’t necessarily the best news in terms of usability. Anyone who has attempted to view or …

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When Replacing Legacy Applications, Performance is Key – Part 3

“‘How did you go bankrupt?’ Bill asked. ‘Two ways,’ Mike said. ‘Gradually and then suddenly.’” – Ernest Hemingway, The Sun Also Rises As I’ve written in earlier posts, legacy replacement projects need software requirements that take performance into account. And the Ernest Hemingway quote above pretty much sums up the …

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When Replacing Legacy Applications, Performance is Key – Part 1

Big Iron. Green Screen. Transaction Processing Systems. Mainframe. No matter what you call them, legacy systems are all around us in organizations of all shapes and sizes in every industry we can think of, including many high-tech, bleeding edge technology companies. And these systems increasingly drive the need for software …

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