The iterative nature of SCRUM ensures that features are delivered incrementally, enabling initial product releases to be taken to the market even as the product continues to develop.
The increased speed-to-market drives faster ROI.
In SCRUM an increment of product functionality is done each time. Each new functionality along with the prior ones is thoroughly tested to ensure that all the functionalities work together as per the requirement.
SCRUM encourages active 'business' involvement and creates a collaborative environment. This enhances project visibility for all stakeholders and helps to effectively manage the expectations.
Increased visibility in SCRUM helps to ensure that risks are identified at the earliest possible opportunity, while there's still time to take corrective action.
SCRUM embraces change. In fact, it's expected. Timescales are fixed and requirements emerge and evolve as the product is developed.
The above approach of fixed timescales and evolving requirements enables a fixed budget. The scope of the product and its features are variable, rather than the cost.
The active involvement of the stakeholders, the high visibility of the product and its progress, and the flexibility to change, creates much better customer satisfaction.
The flexibility for the requirements to emerge and evolve, and the ethos to embrace change ensures that the right product is built.
The active cooperation and collaboration between the team members involved in the project makes agile development process even better