Guide about Software Development Process

Software development is carried out using a certain methodology. The choice depends on what budget the project has, and how specific the product that is plan to be develop.

Each of these methodologies involves the passage of stages, each of which includes certain actions and requirements for them.

Cascade method (Waterfall Model)

A typical set of sequences with which it is easy to manage a project. Suitable only for those products, implementation methods and requirements for which are define in advance.

It is divided into the following stages:

  1. Training. Collection of software requirements and their processing. Planning the necessary resources, timing, cost calculation.
  2. Design. Development of technical specifications and sending the finished document to the contractor. Creation of specifications.
  3. Creation. Custom design, code writing, software testing.
  4. Escort. Product installation and implementation, user training and support.

Flexible method (Agile)

Software development using Agile involves the division into several stages (sprints), each of which must be complete and analyze. Based on these data, the following stages of development are plan.

Each sprint consists of the following steps:

  1. Planning. Definition of goals, distribution of available resources.
  2. Development. Solving sprint problems.
  3. Testing. Performance check, error analysis and correction.
  4. Demonstration. Acquaintance of the customer with the finished stage.
  5. Implementation. Use of the software.

The flexible method is suitable for large projects whose requirements may change during development.

V Model

Works similarly to the cascade method, for systems that need to function uninterrupted.

The peculiarity of this model is that product testing is carry out at each stage, simultaneously with the development process.

Suitable for small and medium projects with fixed requirements, and only if there is the possibility of continuous testing of the product.

Incremental Model (incremental model)

Development is divide into several cycles and modules, each of which goes through its own process of design, creation, testing and implementation.

First, the software is created with basic functions, and then new increments are added. The development process lasts until the creation of a product with a full set of functions that meets the initial requirements specification.

Suitable for projects that need to be launched to the market urgently.

RAD Model (rapid application development)

A kind of incremental model, but components are developed by several teams at the same time. The created parts are integrated into one prototype.

Suitable for projects with a large budget.

Iterative Model (iterative model)

Software development using this method does not require an initial specification . Building a product starts with developing a version with a basic set of features that expands along the way. Suitable for large projects, the details of which may change over time.

Spiral Model (spiral model)

It works similarly to the incremental model, but each stage is divided into planning, risk analysis, creation and evaluation of the result.

So, we can conclude that the software development process is most often multi-stage and complex, some stages run in parallel or simply combined. Everything is individual and depends on the specifics of the product that is planned to be developed.

Why do you need custom software development?

In essence, custom software development is about digitizing processes, addressing unique user/partner/customer or business needs, and creating value for you.

On the contrary, custom software development company becomes an advantage for starting the digital transformation of a business or generating a separate digital product that can become more successful than the business that created it.

What else can be done with custom software development:

  • implement a new process for which the functionality of standard software is not enough;
  • increase the information security of the company;
  • automation / digitalization / robotization of processes;
  • increase convenience for your customers or partners by creating a custom application or chatbot/website for them;
  • in general to go beyond and do something that no one has ever done before.

What are the benefits of custom software development at Evergreen?

In order to create your own software, you will need:


Engineers, designers, testers and managers. The usual team of a relatively small project is from 4-5 people with different roles in the project to large teams of several dozen people on more mature projects.

Project teams at Evergreen staffed not only by technical skills, but also by industry competencies and soft skills required for a particular project.

Processes and Methodologies

Requirements gathering, business analysis, engineering, design, software development, testing, implementation, support and development. Processes are one of the greatest values ​​of software development company Liverpool; mature processes guarantee Evergreen clients results and delivering results on budget and on time.


Most importantly, even though we placed them third on the list. Possession of modern technologies, AI technologies and high-load systems, rapid development and wide opportunities in the techstack allow us to maintain the optimal team size, develop products faster than competitors and prevent them from becoming obsolete. Competition in the world of software development and digital products is in many ways technology competition.

And you will definitely want:


We guarantee the launch of projects within the signed deadlines and agreed budgets and provide lifetime (unlimited) warranty support for projects with which we have signed a support agreement .


We really launch all projects and support and develop our clients’ projects for many years after launch. We have launched over 300 projects. For us, the wow-results of our clients’ business, achieved thanks to custom-made software and products, are the best illustration of the effectiveness of our approaches and solutions.

Prices for custom software development

The price of custom software development is traditionally calculated based on the amount of time spent by the team. The process of getting the value is called “assessment”, or “estimate” (tracing paper from the English “estimate” – assessment).

How does this happen? You send us your idea or a description of the requirements in free form, we communicate with you and formalize them to the point where we understand what should be the result and how this idea can be implemented. The more detailed requirements you provide us with, the more accurate the estimate will be. For start-ups, innovative projects, businesses at the idea stage, this is impossible, because there are many “correct” solutions, and we can offer dozens of different solutions to the same problem. In order to understand what will be the optimal price for custom software in this case, we usually suggest separating the design and formulation of requirements into a separate subproject or working according to flexible development methodologies and the principle of payment for the time spent (time and materials, T&M).

Thanks to an individual approach to development, you get a solution adapted to the characteristics of your business, which can become an additional competitive advantage or an important element in the further digital transformation of the company.The involvement of the Evergreen team in development at all stages of the project, mature processes, a well-established tech stack and mastery of technologies allow us to create reliable and modern digital products that work for your business and results.

Read More Ultimate Guide to HIPAA Compliant Software Development

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