Echocardiogram Software Development Lifecycle 3 — Questions and Answers
Question 1: Which SDLC model follows a strict sequential order — requirements → design → implementation → testing → deployment — without revisiting earlier phases?
- Agile
- Spiral
- Waterfall (Correct answer)
- Kanban
Correct answer: Waterfall
The Waterfall model progresses linearly through phases with no overlap or iteration.
Question 2: Why is version control (e.g., Git) important during the development of echo analysis software?
- It increases ultrasound probe frequency
- It tracks code changes and allows rollback if a defect is introduced (Correct answer)
- It compresses DICOM file sizes
- It manages patient scheduling
Correct answer: It tracks code changes and allows rollback if a defect is introduced
Version control systems log every change to the codebase and allow developers to revert to a stable state if needed.
Question 3: During which SDLC phase would a clinical informatics team define the database schema for storing echo measurement values like EF and LV dimensions?
- Planning
- System design (Correct answer)
- Maintenance
- Retirement
Correct answer: System design
Database architecture and schema design are determined during the system design phase.
Question 4: What is a 'change control process' in healthcare software management?
- A procedure for replacing old ultrasound probes
- A formal workflow for approving and documenting modifications to production software (Correct answer)
- A method for adjusting gain settings on an echo machine
- A billing audit for cardiac procedures
Correct answer: A formal workflow for approving and documenting modifications to production software
Change control ensures that software modifications are reviewed, approved, and documented to maintain system integrity and compliance.
Question 5: In the SDLC, what is the role of a 'business analyst' in an echocardiography department software project?
- Writing the low-level code for DICOM parsing
- Bridging clinical stakeholder needs and technical development teams (Correct answer)
- Installing the echo workstation hardware
- Performing QA stress testing on servers
Correct answer: Bridging clinical stakeholder needs and technical development teams
A business analyst translates clinical workflow requirements into specifications that developers can implement.
Question 6: Which testing type verifies that a newly updated echo software module does not break previously working features?
- Unit testing
- Regression testing (Correct answer)
- Load testing
- Penetration testing
Correct answer: Regression testing
Regression testing re-executes existing test cases after changes to confirm no previously passing functionality has been broken.
Question 7: A hospital deploys a new echocardiography software patch to fix a critical measurement error. This activity is an example of which SDLC phase?
- Requirements gathering
- System design
- Corrective maintenance (Correct answer)
- Planning
Correct answer: Corrective maintenance
Corrective maintenance addresses defects discovered after deployment to restore correct system behavior.
Echocardiogram Software Development Lifecycle 3
Which SDLC model follows a strict sequential order — requirements → design → implementation → testing → deployment — without revisiting earlier phases?