Flexible Pricing Models

PIXELBIRD™ understands that pricing plays a key role when deciding on your service providers. To help our clients with affordable rates, we strive constantly to optimise our flexible pricing models. 

Our pricing framework revolves on several factors which are responsible for pricing maturity with satisfied outcomes. 

To support our clients, we have a set of transparent pricing strategies coupled with a combination of ‘right’ elements which are at par with the industry standards.

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Advantages of the Agile model

  • Customer satisfaction by rapid, continuous delivery of useful software
  • Close daily cooperation between business people and developers
  • Regular adaptation to changing circumstances. Even late changes in requirements are welcomed

Disadvantages of the Agile model

  • There is a lack of emphasis on necessary designing and documentation
  • The project can easily get taken off track if the customer representative is not clear what final outcome that they want
  • Only senior programmers are capable of taking the kind of decisions required during the development process

Agile Methodology

The Agile theory basically assumes that with modern technology it’s possible to develop sophisticated products quite quickly and that the clients’ requirements frequently change, so it’s pointless to make very detailed plans for many months ahead. Detailed plans are only made for short periods called “sprints”. A sprint lasts between a week and a month; each team decides what sprint length works for it.

A team works with a Product Owner, who decides which features are the most important to be developed in the next sprint.

When to use the Agile model

  • Unlike the waterfall model in agile model very limited planning is required to get started with the project
  • When new changes are needed to be implemented. The freedom agile gives to change is very important. New changes can be implemented at very little cost because of the frequency of new increments that are produced
  • To implement a new feature the developers need to lose only the work of a few days, or even only hours, to roll back and implement it
  • Scrum Development

Test Driven Development

The concept is to “get something working now and perfect it later.” After each test, refactoring is done and then the same or a similar test is performed again. The process is iterated as many times as necessary until each unit is functioning according to the desired specifications. Test-driven development can produce applications of high quality in less time than is possible with older methods.

Proper implementation of TDD requires the developers and testers to accurately anticipate how the application and its features will be used in the real world. Problems are approached in an incremental fashion and tests intended for the same unit of code must often be done many times over. The methodical nature of TDD ensures that all the units in an application have been tested for optimum functionality, both individually and in synergy with one another.

Scrum Development

Scrum is an agile process most commonly used for product development, especially software development. Scrum is a project management framework that is applicable to any project with aggressive deadlines, complex requirements and a degree of uniqueness. 

In Scrum, projects move forward via a series of iterations called sprints. Each sprint is typically two to four weeks long. The main phases of a project are Planning, Project Incremental Development, Incremental Deployment and Project Closing. The Incremental Development stage is organized into consecutive Sprints or iterations where different tasks are carried out to implement a set of requirements.

Waterfall Methodology

In a waterfall model, each phase must be completed before the next phase can start. At the end of each phase, a review takes place to determine if the project is on the right path and whether or not the project should be continued. Here phases do not overlap with each other.

The waterfall model is a sequential design process, often used in software development processes, where progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance.

This model is also called as the classic life cycle model as it suggests a systematic sequential approach to software development. This one of the oldest models followed in software engineering.

When to use the waterfall model

  • This model is used only when the requirements are very well known, clear and fixed.
  • Product definition is stable.
  • There are no ambiguous requirements.

Advantages of waterfall model

  • Waterfall model works well for smaller projects where requirements are very well understood.
  • Ability to visually see and communicate a target delivery/end date based on scope agreed.
  • In this model, phases are processed and completed one at a time. Phases do not overlap.

Disadvantages of waterfall model

  • Change in scope can seriously impact time/cost/quality.
  • Poor model for long, complex and ongoing projects.
  • Not suitable for the projects where requirements are at a moderate to high risk of changing.

When to use the Spiral Model

  • When costs and risk evaluation is important.
  • Requirements are complex.
  • For medium to high-risk projects, Long-term project commitment is unwise because of potential changes to economic priorities.

Advantages of the Spiral Development Model

  • Spiral Model mostly concentrates on risk analysis.
  • Most useful for large and risk projects.
  • Spiral Model used if requirement changing frequently.

Disadvantages of the Spiral Development Model

  • For risk, analysis phase required an expert person to make an analysis.
  • Not useful for small projects.
  • Project duration and cost could be infinite because of the spiral feature.

Spiral Methodology

The Spiral Model is highly used in IT companies. This model involves strategies, which is a combination of incremental and prototype models. 

This Spiral Model is best to use for large projects which required more management and planning.

The objective of the spiral model is to emphasise management to evaluate and resolve risks in the software project. Different areas of risks in the software project are project overruns, changed requirements, loss of key project personnel, delay of necessary hardware, competition with other software developers and technological breakthroughs, which make the project obsolete.

Spiral Model’s phases are: 

  • Planning phase
  • Risk analysis phase
  • Engineering phase
  • Evaluation phase