Revamping Legacy VISTA System for Modern Healthcare

About this project

The Department of Veterans Affairs Healthcare System, known as VISTA, has been a mainstay in the healthcare industry, particularly for its extensive backend database and system functionalities. Rooted in the legacy applications of the 1980s and 90s, it was an intricate challenge to breathe new life into this well-established system.

Our objective was to assess and understand the intricacies of VISTA’s hierarchical databases, subsequently designing an architecture and enterprise solution tailored for smaller hospitals. While retaining the robust backend of VISTA, our mission was to overlay it with modern user interfaces that not only enhance user experience but also streamline the operational efficiency of multiple hospital functions.

From patient registration to intricate modules such as EHR, clinical documentation, and support for nursing, inpatient, outpatient, emergency, and surgery rooms, the revamped VISTA system was a holistic solution for every clinical delivery function inherent to a hospital EHR system.

Domain & Technology
Our Services Include


CHWE reached out to the Sobah team for this project after failing to get required delivery from 3 different partners in the past.

This problem involves data sources from over 50,000 different sources, where most of the data is unstructured.

Additionally, the user experience of the portal required encouraging citizens to be involved in their politics – a challenge that has eluded younger generations over the last few decades. Most importantly, the initiative is non-partisan and required completely neutral and data driven content to avoid any bias in the insights provided to the citizens.


The client required our team to conduct a thorough and careful study of data sources, architectural choices and innovative search engine optimization techniques. Product involved a sophisticated phased roadmap required to be delivered over a period of years. The core requirement was to build a highly scalable, adaptable and agile product framework and architecture. We were also tasked with engaging content writers to deliver thousands of articles for educating citizens on various topics related with their politics and society. Product envisioned additional roles and content created for analysts and institutions that require bulk data and deeper insights using data analytics and AI.

Our team
The rejuvenated VISTA system was not just a project completion but a monumental leap in healthcare IT. Post-development, the system underwent rigorous testing to ensure that it upheld the highest standards of efficiency and usability. This venture was acquired by a larger healthcare tech company, which saw the potential to integrate it with its software solutions and further extend its reach and utility.

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