Due to different requirements for that different types of projects, it may be required to choose the SDLC phases according to the specific needs of the project. At Digital Bridge, we follow various methodologies and approaches for these different requirements during software implementation.
Agile means an iterative, incremental approach to development. With each iteration, adjustments can be simply made to the product, therefore better reacting to changing requirements. The Agile approach has numerous well-documented benefits, however, it is important to note that it is not a one size fits all solution to all development problems.
In a waterfall model, each phase must be completed fully before the next phase can begin. This type of model is basically used for the project which is small and there are no uncertain requirements. At the end of each phase, a review takes place to determine if the project is on the right path and whether or not to continue or discard the project. In this model the testing starts only after the development is complete. In waterfall model phases do not overlap.
With all Hybrid models, both sides must understand the limitations of the framework. Waterfall development must give up some of the certainty of fixed expectations for the flexibility and freedom of the Agile world. The Agile compromise is to be creative but with far less freedom, working against a fixed deadline with cost forecasting and risk assessments. The Agile-Waterfall Hybrid model aims to retain the dependency tracking and clarity of Waterfall, while embracing the strengths of the Agile methodology, providing the flexibility and transparency necessary to adapt to the fast changing requirements of stakeholders.
The Hybrid model is best suited for reusing software code, when dealing with a series of similar products and when future products must also be considered. In such situations, a quick turnaround time may be needed to keep pace with new product releases. Backlog management is a critical area for the successful adoption of this Hybrid model, and adoption is best assisted by software version release planning features.