waterfall mode
Integration also called: IT Systems Integration, System Integration, Convergence, Network Systems Integration, Integration, Digital Convergence, Integrating Systems, Integrated Systems, Technology Integration, IT System Integration.

DEFINITION: A systems integrator (SI) is an individual or business that builds computing systems for clients by combining hardware and software products from multiple vendors. Using a systems integrator, a company can align cheaper, pre-configured components and off-the-shelf software to meet key business goals, as opposed to more expensive, customized implementations that may require original programming or manufacture

We provides system integration services that already operate in the Biller who cooperate with us,it is in the nature of VSI to tailored each system to our partners needs.