BDD [Overview]

30 Second Overview.

One of the main disciplines the teams i work with is Behaviour Driven Development this approach to software design was introduced to the community by Dan North a number of years ago and although it has not gained the following its sister discipline of TDD (Test Driven Development) has gained, those that practise BDD tend to produce a far more accurate representation of the Business Analysts vision and thus the customers dream.

Within a BDD Test / Spec we aim to use common English language sentence to describe the functionality that we need to be produced our scope is a business stripe though the technical layers rather than a method or object as in TDD.

Brief Presentation on some of the BDD frameworks in common use:

Some of the advantages

  • Requirements are the driving force behind the tests , which in turn drives the code
  • The technique trims away code waste
  • The technique creates a pit of success for the developer
  • The technique encourages other good practises such as contract first development and emergent design principals.
  • Helps developers understand what ‘Done’ really is for the story

Some of the challenges

  • The technique requires a lot of discipline across the team
  • The technique takes away some of the freedom from developers
  • The technique doesn’t work in environments where P & P , SOLID and best practises are not followed.
  • The technique required a ‘BA’ role to be performed within the team
  • The BA must be very explicit in there requirements and child acceptance criteria, also it is helpful if they supply wireframes and such like to augment the requirement statements

About Beth Martin
software developer

One Response to BDD [Overview]

  1. Pingback: Tech Talk – Blush Packages » Blog Archive » Making the Magic happen.

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