Top 5 Prominent Methodologies of Custom Software


As a well-known and widely-known software development service provider in Vietnam, Saigon Technology always wishes to apply the best methodologies of custom software development, in order to achieve the maximum level of job efficiency feasible. Of course, there are so many different methods on the market right now that it might be difficult to decide which one is right for you.

The project's goals and principles must be clearly defined from the start. Choosing the right software development process will be crucial when conducting software development. The final decision must be well-researched before being made. This article will show the best methodologies that you may notice.

An Outline Of The 5 Most Effective Methodologies

A company may finally begin work on a project after thoroughly analyzing the project's complexity, customer demand, and available resources. If you choose help from software outsourcing companies, you won't have to worry or care too much about this part, since they may finally begin work on a project after thoroughly analyzing the project's complexity, customer demand, and available resources.

With objective pluses and minuses for each methodology, these top 7 ones are promising methodologies for different users and needs.

1. Agile Methodology

Agile methodology has long been popular which is not surprising for those who are passionate about discovering the IT sector, developers and clients can make modifications at any time. In the Agile model, process flexibility and client satisfaction through quick delivery of functioning software products are the primary goals of this iterative and incremental approach.



  • Not a good solution for complicated relationships (between client & developing team)
  • Not being able to work without an overarching plan, an agile leader, and agile project management practices
  • Without documentation, transferring technology to new team members might be difficult.



  • Software delivered in a timely manner
  • The client’s response concentrated
  • Flexibility enriched
  • Changing conditions swiftly adjusted
  • Error margins reduced
  • Specific phases for easier organizing, testing
  • The finest quality software delivered
  • Simply controllable
  • Minimal rules & documentation were rapidly implemented

2. Waterfall Model

The Waterfall model is sometimes called the linear sequential life cycle model – because every task is followed in a top-down, step-by-step sequence. Using and understanding it is easy because (so to say) there is no gap between phases in the waterfall model. This method is implemented based on dividing the entire software development process into phases, each with a different purpose. Usually, the output of a phase will be used as the input for the subsequent step in the Waterfall model.

This approach is considered to be one of the most traditional and widely used development techniques. It is also known by the majority of organizations to be a conventional life cycle approach to software development.



  • Hardly to adapt to changing needs
  • Remaining ambiguity & high risk
  • On a stage-by-stage basis, it's impossible to gauge development
  • Until the end of the life cycle, no functioning software is generated
  • Not suitable for complicated and object-oriented tasks/ projects with a moderate to high risk of change in requirements


  • Easy to utilize & comprehend
  • Easy to manage thanks to its stiffness
  • Each of the stages is dealt with separately
  • Might be profitable for smaller projects with well-understood needs
  • Well defined stages
  • Milestones set up clearly

3. Spiral Model

This approach is suitable for large SOW, critical projects.

Using a Spiral Model, you may begin with a simple part of the project and work your way up to bigger portions to discover and control hazards at an earlier stage of development. After each stage is completed, the following step is taken. The project moves in a spiral pattern from one module to the next, reducing risks and infusing feedback in between.

To create this development methodology, we have utilized a blend of the waterfall and iterative development models, with an emphasis on risk analysis. Through each spiral iteration, the product might be released incrementally or refined incrementally.



  • High costs
  • Risk analysis is a critical component in achieving a goal
  • For low-risk projects only
  • Multi-phased project with extensive documentation
  • Processes for bespoke software development are difficult to manage
  • Time-to-market reduced
  • Strict disciplines & procedures
  • Easily adapted system as requirements changed
  • Full potential prototypesRisky elements to be detected & eliminated in the early stages

4. Scrum Development Methodology

As familiar to IT believers as Agile, the Scrum methodology includes projects, which are divided into smaller modules, with each module having a separate approach for deciding the work to be done. As long as there is a need for a quick change in a project, it may be used for any project. Due to Scrum's ability to do several iterations in a single step, software development is completed quickly. Even the most sluggish projects may be brought back on track with ease.



  • Not suitable for huge & long-term projects
  • The highly skilled team required
  • The connection between scrum masters and their teams must be based on trust and adaptability
  • Extremely precise time to be needed
  • The developing team is free to make a decision
  • Simply process modification thanks to feedback & short sprints
  • Time-to-market reduced

5.     Big Bang Methodology

This approach is typically used for short projects with a small development team.

In the Big Bang model, we don't follow any particular procedure. At begin, money, and effort are invested, with the result being software that may or may not meet client requirements. Since this model does not follow a process/procedure, therefore there is very little planning necessary for this model to be effective and successful.



  • There are no specific and certain requirements
  • Too hazardous for complex projects
  • Only preferred for smaller and less complicated tasks


  • Flexibility emphasized
  • Basically simple
  • Extremely controllable since the resources needed are low



Content Manager

Thanh (Bruce) Pham CEO of Saigon Technology

A Member of Forbes Technology Council

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