![]() ![]() ![]() Non Functional RequirementĪ non functional requirement is a quality or characteristic of a completed project that isn’t directly related to its functionality. ![]() It’s as simple as checking something off a list. Since they’re quantifiable and measurable, it’s easy to tell whether or not a functional requirement has been met. If the project is to write a song, a functional requirement may be that it includes four stanzas and a chorus. It’s concrete and often can be seen.įor example, if the project is building a website, a functional requirement may be to build a registration page that includes inputs for both name and email. Functional RequirementsĪ functional requirement is a measurable quality or characteristic in a completed project. Let’s start by defining just what functional and non functional requirements are. The Definition of Functional & Non Functional Requirements We’re going to look at how these hazy requirements butt heads with agile, and how to capture and measure their “uncapturable” qualities each iteration. If you’ve learned the hard way that non functional requirements cannot be ignored, even while they cannot be measured, then this post is for you. When you play by all the agile rules, such as meet requirements, hold retrospectives and study the burn down chart, how can things go wrong? And how do you change things going forward? This leaves the team frustrated and flummoxed. The team thought it provided just what the customer ordered, yet it wasn’t what they ordered at all. Maybe the service was lousy, the restaurant too noisy, the delivery time too long. The client ordered a pizza, and the team delivered it, exactly to specifications: 16”, pepperoni, piping hot. Not a few agile teams have banged away on a big project–planning iterations, completing user stories, producing increment in every sprint–only to discover during testing (or even later) that the product is not in line with the client’s expectations. What do warm fuzzies have to do with non functional requirements in agile? As it turns out these two things are very much alike. You’ve probably heard the expression that “the best things in life aren’t things at all.” Some of our favorite things, such as nights out at the movies, evening walks in the snow and road trips to national parks, wouldn’t mean a whole lot if they didn’t include “things” like laughter, connection, friendship and love. Catching a Cloud, Pinning it Down: How to Capture Non Functional Requirements in Agile ![]()
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