Whether you plan it or not, every piece of software goes through a similar path from idea to launch day. Collectively, the steps of this path are called the software development lifecycle (or SDLC for short). The SDLC is the sequence of steps that take place during the development of a piece of software.
formalized SDLC has a number of other benefits:
Agile is all about moving fast, releasing often, and responding to the real needs of your users, even if it goes against what’s in your initial plan. This means you don’t need a full list of requirements and a complete SOW before starting work. Instead, you’re essentially moving in one direction with the understanding that you’ll change course along the way.
Dynamic teams doing continuous updates to products.
As it becomes easier to do small releases and gather user feedback, Agile allows companies to move faster and test theories without risking their entire livelihood on a major release their users hate. Also, as testing takes place after each small iteration, it’s easier to track bugs or roll back to a previous product version if something more serious is broken.
Team’s with extremely tight budgets and timelines.
Agile’s dynamic nature means projects can easily go over their initial timeframe or budget, create conflicts with existing architecture, or get derailed by mismanagement. This means it’s not the best choice for risk-averse or resource-strapped teams.
The incremental and iterative software development processes are a middle-ground between the structure and upfront planning of the Waterfall process and the flexibility of Agile.
While both follow the idea of creating small bits of software and exposing them to users for feedback, they differ in what you create during each release.
Teams with clear requirement who want more flexibility than the Waterfall method provides.
With the incremental process, you get early feedback on your core feature, which can help you validate your business case right away. Whereas the iterative approach gives users an early look at what the full product could be so you’re able to get better and more focused feedback.
Team’s without a clear long-term technology plan.
Additionally, both of these models (and the iterative approach especially) require heavy planning and architecture-building early on. Meaning they aren’t ideal for smaller projects or teams who are still testing out use-cases and trying to find product-market fit.