Difference between agile and spiral model

⨘ } Software Engineering } 007 } Agile & Spiral }

This lecture discusses key ideas of agile framework and its differences with traditional waterfall and spiral software development methodologies. Waterfall m...
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Difference Between Agile and Spiral Model is a set of differences between the two software development methodologies.

According to Wikipedia, Agile software development comprises various approaches to software development under which requirements and solutions evolve through the collaborative effort of self-organizing and cross-functional teams and their customer(s)/end user(s). It advocates adaptive planning, evolutionary development, early delivery, and continual improvement, and it encourages rapid and flexible response to change. And, Spiral Model is a risk-driven software development process model. Based on the unique risk patterns of a given project, the spiral model guides a team to adopt elements of one or more process models, such as incremental, waterfall, or evolutionary prototyping.

Distinctive features of Agile methodology are more risk of sustainability and maintenance. Agile uses a minimum of rules and a minimum of planning, as well as simple interaction with documentation. Agile is easy to manage, suitable for small projects. Agile depends on how you interact with customers. Each subsequent iteration in Agile is a separate model. Agile is a combination of an iterative and incremental model.

Distinctive features of Spiral methodology are the best risk management. In Spiral models, a large number of intermediate steps require redundant documentation. For a Spiral Model, planning is a must. In Spiral management models are more complex than in the Agile model. In Spiral Model, end of the project may be unknown or not defined at the beginning of the project. Spiral is not suitable for small or low-risk projects. If the project is small, it is best to use the Agile methodology. Spiral is not very dependent on customer interactions. In Spiral, each iteration is not a separate model. The Spiral is a combination of an iterative model and a waterfall model.