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Development Methodology

VIP follows the standardized mobile application development methodology which helps us to provide very cost-effective and efficient business solutions. The overall application development is carried out in seven different steps.

  • Requirements and the scope of the project
  • Project planning and Schedule
  • Set the Project Goals

Graphic Design and Prototyping

Graphic design includes landing and homepage page layout, various inner pages layout & theme creation which will be applied to the proposed application. In addition to that all graphic elements are designed. After completion of 'Graphic Design' phase, prototyping is being done. In this phase a working model of the App is created. The working model or the prototype consists of all the modules present in the actual scope of the project. The prototype of the application is done just to give the overview of the actual application and therefore the prototype mostly runs on the static data or hard coded data which often resides within the app.

Architecture Design

After all the screens are designed and prototyping is completed, the solution architects design the system architecture and prepare the system design for the overall development process. The architecture design includes:

  • Database architectures including fields, tables & relationships
  • Business logic document for non-obvious logic and business flow
  • Screen layout & navigation description

Once all are formalized, Business Rule and System Test Plan are created which covers each features of the application. The Business Rule and System Test Plan document will be validated from Client and then only the programming starts.


After the prototyping and architecture design stage is completed all the screens are being programmed according to the schedule in multiple passes. In the prototyping stage, all the functionalities are done using the static data. However, in the development phase we create web-services which are an interface between the Apps and the backend. Web-services are created in order to feed data to Apps.

The development of both, the backend and the Apps carried out in parallel with each other. Based on the database structure prepared during architecture design, XML format is designed. All the data provided to the App is in the XML format. Once these things are in place the web-services are developed. While the web-services are being developed the application Screens are developed using the local XMLs and once the web-services are developed they are integrated with the Apps. After the web-services are completed the backend section pages are designed and developed. Until the backend section is complete the data entry into the database is done manually. There are some records entered into the database for testing and once the functionality of the backend section is completed all the data entry part is done using the backend Section. Meanwhile the Application development is carried normally. All the modules are integrated as a final system once they are complete and later follow the debugging process and the testing process.

Testing & QA

All the Applications are tested and quality assurance is done on daily basis. Primarily the developers themselves do the unit testing. The testing team does a rigorous testing of the app by testing all the individual modules and the finally the App as a whole product. The App is QA'ed every day by the Project Leads themselves. While the developers do the unit testing it's assured that they perform real time testing using the tools given by apple. We connect the device to use debugger, or collect real-time performance data. These powerful optimization tools allow us to identify and address any performance issues that might be present. The testing team then performs the tests on the devices. We test the performance of the applications connected to a Wi-Fi or carrier's network for a real world user experience. Apart from this we do a weekly/biweekly audit of the source code to ensure that all the best practices are being followed and the code is well written and managed.

Preparation for Submission

In this phase the App is tested for performance, stability and the memory leaks. We have tools that help us identify the memory leaks and the applications performance. Any issues that might arise in these are addressed and the whole system is QA'd to keep a check on the system's integrity.


The final phase of the whole development process is deployment. In this stage we carry out App installation, create the distribution build and upload the binary to the Store for the review process.

Besides we do support full applications development functionality - thus ensuring whatever the device, we likely support it.

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