Explain the roles of a business analyst, requirements engineer, and software engineer and how they work together when building a system

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Complete all the questions below and make sure to use real-world examples to illustrate your answers.
1. Explain the roles of a business analyst, requirements engineer, and software engineer and how
they work together when building a system.
2. What are some of the key technical challenges and considerations that a systems analyst should
keep in mind when designing a complex system, and how can they overcome these challenges
to create an effective and efficient design that meets the needs of the users and stakeholders?
3. You currently work for a large aerospace and defense contractor that develops software to
pinpoint active missiles in the sky. You have been given the task to design software that is
required to detect the exact coordinates and locations of the missiles as they are active in flight.
After the coordinates are found, the data should be sent and saved in a database system.
Because this software is mission-critical and cannot avoid failing at any point and 100% of data
must be saved to the backend database, what steps can you ensure in the system design
process to ensure the reliability of the software working as intended? How can you ensure data
is safely transmitted to your backend system?
4. You are working for a software company that sells an ERP software system to customers. These
software systems are intended to be bought and deployed in the customer’s environment as
their own standalone versions, meaning that the customer should be maintaining the computing
hardware and configuring the software in their own enterprise environments. Because ERP
software systems require elaborate testing to ensure the software is working as intended, the
customers are required to fully regression test every new software update released by your
company. Over the years, your company has received a lot of complaints from your customers
stating that maintenance and upkeep of the software have become too expensive and time-
consuming. What changes would you suggest to your company to reduce the complaints of your
customers?
5. Choose 3 types of diagrams in UML and explain their purpose.

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