Subject - Software Engineering Give a brief background about what is behavior driven development (BDD) and...

Subject - Software Engineering

Give a brief background about what is behavior driven development (BDD) and how it is relevant in a Software Engineering context?

Expert Solution

Behaviour Driven Development (BDD) is a synthesis and refinement of practices stemming from Test Driven Development (TDD) and Acceptance Test Driven Development (ATDD). BDD augments TDD and ATDD with the following tactics:

Apply the “Five Why’s” principle to each proposed user story, so that its purpose is clearly related to business outcomes
thinking “from the outside in”, in other words implement only those behaviors which contribute most directly to these business outcomes, so as to minimize waste
describe behaviors in a single notation which is directly accessible to domain experts, testers and developers, so as to improve communication

Expected Benefits

Teams already using TDD or ATDD may want to consider BDD for several reasons:

BDD offers more precise guidance on organizing the conversation between developers, testers and domain experts
notations originating in the BDD approach, in particular the given-when-then canvas, are closer to everyday language and have a shallower learning curve compared to those of tools such as Fit/FitNesse
tools targeting a BDD approach generally afford the automatic generation of technical and end user documentation from BDD “specifications”

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