Study the scenario and complete the question that follows:

HealthTrack Distributed System

You are a software engineering student working on a capstone project that involves collaborating with HealthLink, a national healthcare provider. HealthLink's current health information system, HealthTrack, is a distributed system used across various hospitals and clinics to manage patient records, appointments, and medical histories. Although HealthTrack facilitates information sharing among healthcare professionals, HealthLink would like to expand HealthTracks services to offer virtual consultancy and online monitoring of patients and offer HealthTrack as a SaaS to its clients.

Source: Bhebe., S $(2024)$

To assist the non$-$technical decision makers, you have been asked to discuss four$(4)$ overlapping stages of software engineering stages for which the HealthTrack System can be expanded. Note that your knowledge in this course should be applied in answering this question.

$(10$ Marks$)$