Author: Karan Negi

Design Pattern | Glossary

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Definition

Design Patterns are an essential support of Agile Development. The enable the emergent design to emerge in Agile projects. Previously thought of as ‘Design Up-Front’ technique, they are often used in Agile projects to determine variations that are discovered over time. It is important for development organizations to be critical of the systems they create, and make them invulnerable to business priorities, technologies, market pressures and changing requirements.

A Design Pattern offers systematic naming, motivation and explanation of general design problems in systems that are object-oriented. It offers a description of the problem, the solution and when to apply it. It also gives hints of implementation and requisite examples.

Further Reading

  •  “Design Patterns: Elements of Reusable Object-Oriented Software (Addison-Wesley Professional Computing Series)” (book), by Erich Gamma

Burn Down Chart | Glossary

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Definition

A ‘Burn Down Chart’  is a graphical representation of the amount of work left to do, and the time available to do it in. The work remaining( or backlog) is placed on the vertical axis, with the time left, along the horizontal axis. So in simple terms, it can be defined as a run chart of outstanding work. Whilst often used in Agile Software Development methodologies such as Scrum, they can be applied to any project that contain measurable progress over time.

The chart is usually displayed at a place on the wall of a project room. Adopting this practice results in up-to-date project status being visible to each member of the team. As a result, it encourages the team members to confront any and all difficulties, both ahead of schedule, and in a more decisive manner. Their simplicity is another reason why they’re so effective.

Further Reading

  •  “The Art of Agile Development”(book), by James Shore