Each software development model has unique advantages, features, and some disadvantages. They are also essential to consider when choosing. It is impossible to name the best model. We can explain it because each suits specific tasks, products, and projects.
Today, we focus on two popular models. It is a cascade called a “waterfall” and an incremental one.
What You Need to Know About the Waterfall Model
This classic model has been used literally since the beginning of the software development era. Despite the time, they continue to work with her to this day actively. The waterfall model has a simple operating principle:
- a new step is executed after the previous one is completed;
- each stage of development has a clear division;
- All steps are allocated a strictly specified time for completion;
- specialists gradually move from one stage to the next.
Experts in software development service argue that the programming model is rigid, with strict rules and time frames. However, waterfall development has a drawback. Taking a step back is quite a difficult task. To make changes to an already finished project, you must invest much effort and money, including financial costs.
Therefore, the cascade model or “waterfall” is actively used when creating projects with a clearly defined action plan and 100% understanding of what is being created. That is, pre-thought-out goals and requirements play an essential role.
The Main Characteristics of the Incremental Model
One popular alternative development option is the incremental model. It is excellent for situations where a sequential action plan is prescribed for a project, but it needs to be launched quickly. At the same time, any changes can be made without problems in the future without financial severe and resource costs.
The essence of the design model is first to develop the necessary list of tasks. These tasks are then distributed based on their priority. Subsequently, specialists who use the classic cascade model develop each block of tasks. The primary mission is to create a project with the necessary functions. It will become the basis. Gradually, this direct software product can be improved and supplemented. It happens through the development of additional components. They are called increments. The process becomes cyclical until it is possible to assemble a complete and unified system.
Each part of the project is considered a finished element. In some cases, specialists are using them separately. Development is carried out in such a way that there is no need for rework in the future. Therefore, the waterfall development model is essential to the incremental model.
This method of creating digital products has several significant advantages:
- minimizing risks;
- simplified product launch;
- accelerated task completion process.
In addition, the basic functionality starts working almost immediately. This way, the business can initially begin to make a profit or other form of benefit. And the missing components or tools can be introduced gradually when necessary.
Which solution to use for the software development depends on the specific situation. Also, keep in mind that there are alternative models that have unique features and important advantages.
