3DPLM Interview Questions for Software Testing

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Overview: Software Testing Interviews at 3DPLM

3DPLM Software Solutions is a service-based IT company delivering projects across PLM, ERP, banking, insurance, manufacturing, e-commerce, and enterprise applications.

In 3DPLM interview questions for software testing, interviewers usually focus on:

  • Strong manual testing fundamentals
  • Ability to explain concepts clearly
  • Confidence in test case writing
  • Knowledge of SDLC, STLC, and defect life cycle
  • Practical understanding of real-time scenarios
  • Basic awareness of automation, API, and SQL
  • Willingness to learn and adapt to projects

This guide is suitable for:

  • Freshers
  • 1–4 years experienced testers
  • Manual testers moving toward automation

Section 1: Basic 3DPLM Interview Questions for Software Testing

1. What is software testing?

Software testing is the process of verifying and validating a software application to ensure that:

  • It meets business requirements
  • It works as expected
  • It is free from critical defects

2. Why is software testing important in 3DPLM projects?

Software testing is important because:

  • Clients expect stable and defect-free delivery
  • Early defect detection reduces cost
  • It improves customer satisfaction
  • It protects company credibility

3. What is the difference between verification and validation?

VerificationValidation
Are we building the product right?Are we building the right product?
Static processDynamic process
Reviews & inspectionsTest execution

4. What is a defect or bug?

A defect is a deviation where:

Actual Result ≠ Expected Result

5. Difference between error, defect, and failure

TermMeaning
ErrorMistake made by developer
DefectBug found during testing
FailureIssue seen by end user

6. What are the different levels of testing?

  • Unit testing
  • Integration testing
  • System testing
  • Acceptance testing

7. What types of testing are commonly used in 3DPLM projects?

  • Manual functional testing
  • Regression testing
  • Smoke testing
  • Sanity testing
  • API testing
  • Database testing

8. What is manual testing?

Manual testing is testing software without using automation tools, where testers:

  • Execute test cases manually
  • Observe system behavior
  • Report defects

9. What is automation testing?

Automation testing uses tools to:

  • Execute test cases automatically
  • Reduce repetitive work
  • Improve testing efficiency

10. Can automation testing replace manual testing?

No. Manual testing is essential for:

  • Exploratory testing
  • Usability testing
  • Business validation

Automation supports manual testing.

Section 2: Test Case Interview Questions (Very Important for 3DPLM)

11. What is a test case?

A test case is a set of steps, test data, and expected results used to validate a specific requirement.

12. What are the components of a test case?

  • Test Case ID
  • Test Scenario / Title
  • Preconditions
  • Test Steps
  • Test Data
  • Expected Result
  • Actual Result
  • Status

13. What is a test scenario?

A test scenario is a high-level functionality to be tested.

Example: User login.

14. Difference between test scenario and test case

Test ScenarioTest Case
High-levelDetailed
What to testHow to test

15. What is positive testing?

Testing with valid input to confirm the system works correctly.

16. What is negative testing?

Testing with invalid input to ensure the system handles errors properly.

17. What is boundary value analysis?

Testing values at:

  • Minimum limit
  • Maximum limit
  • Just inside and outside boundaries

18. What is equivalence partitioning?

Dividing input data into:

  • Valid partitions
  • Invalid partitions

19. What makes a good test case?

A good test case is:

  • Clear and easy to understand
  • Independent
  • Reusable
  • Traceable to requirements

20. What is regression testing?

Regression testing ensures existing functionality works correctly after new changes.

Section 3: SDLC & STLC Interview Questions at 3DPLM

21. What is SDLC?

SDLC (Software Development Life Cycle):

  1. Requirement analysis
  2. Design
  3. Development
  4. Testing
  5. Deployment
  6. Maintenance

22. What is STLC?

STLC (Software Testing Life Cycle):

  1. Requirement analysis
  2. Test planning
  3. Test case design
  4. Test execution
  5. Defect tracking
  6. Test closure

23. Difference between SDLC and STLC

SDLCSTLC
Development focusedTesting focused

24. What happens in requirement analysis phase of STLC?

Testers:

  • Review requirements
  • Identify test scenarios
  • Clarify ambiguities
  • Understand business flow

25. What is test planning?

Test planning defines:

  • Scope of testing
  • Test strategy
  • Resources
  • Tools
  • Timelines
  • Risks

26. What is test execution?

Executing test cases and comparing:

Actual Result vs Expected Result

27. What is test closure?

Test closure includes:

  • Test summary report
  • Metrics
  • Lessons learned

28. What is RTM (Requirement Traceability Matrix)?

RTM maps:

Requirements ↔ Test Cases

29. Why is RTM important?

  • Ensures complete coverage
  • Prevents missing requirements

30. Can testing start before development?

Yes. Requirement review and test case design can start early.

Section 4: Bug, Defect & RCA Interview Questions

31. What is the defect life cycle?

  1. New
  2. Assigned
  3. Open
  4. Fixed
  5. Retest
  6. Closed
  7. Reopened

32. What is defect severity?

Severity indicates impact of defect.

SeverityImpact
CriticalSystem crash / data loss
MajorCore functionality failure
MinorUI issue

33. What is defect priority?

Priority indicates urgency to fix the defect.

34. Difference between severity and priority

SeverityPriority
Technical impactBusiness urgency

35. What is Root Cause Analysis (RCA)?

RCA identifies why a defect occurred.

Example:
 Bug: Incorrect calculation
Root cause: Missing boundary value test cases

Section 5: Scenario-Based 3DPLM Interview Questions for Software Testing

36. A critical defect is found just before release. What will you do?

  • Inform test lead immediately
  • Assess business impact
  • Block release if required
  • Support retesting

37. Developer says “It works on my machine.” What will you do?

  • Share detailed reproduction steps
  • Provide screenshots/logs
  • Discuss professionally

38. How do you test an application without documentation?

  • Exploratory testing
  • Understand business workflow
  • Interact with developers

39. Testing time is very limited. How do you manage?

  • Prioritize critical features
  • Focus on high-risk areas
  • Perform smoke testing

40. A defect is rejected by developer. What will you do?

  • Re-verify requirement
  • Share proof
  • Discuss logically

Section 6: Automation, API & SQL Interview Questions (Awareness Expected)

41. What is Selenium?

Selenium is an open-source tool used for web automation testing.

42. What are the components of Selenium?

  • Selenium IDE
  • Selenium WebDriver
  • Selenium Grid

43. What is API testing?

API testing validates:

  • Backend business logic
  • Integration between systems
  • Data accuracy

44. What is REST API?

REST APIs use HTTP methods:

  • GET
  • POST
  • PUT
  • DELETE

45. Why should testers know SQL?

SQL helps testers:

  • Validate backend data
  • Verify business rules

SELECT * FROM orders WHERE status=’FAILED’;

Section 7: Agile Interview Questions at 3DPLM

46. What is Agile?

Agile is an iterative development approach with frequent releases and continuous feedback.

47. Role of tester in Agile

  • Participate in requirement discussions
  • Write test cases early
  • Perform continuous testing

48. What is a user story?

A short description of functionality from user perspective.

49. What is acceptance criteria?

Conditions that must be met for a story to be considered complete.

50. What is regression testing in Agile?

Testing existing functionality after each sprint.

Section 8: Tools Used in 3DPLM Testing Projects

  • Jira – Defect & sprint tracking
  • TestRail – Test case management
  • Postman – API testing
  • Jenkins – CI/CD integration
  • Selenium – Automation

Section 9: Domain-Based Testing Examples

Banking Domain

  • Login & authentication
  • Fund transfer validation

Insurance Domain

  • Policy creation
  • Claim processing

E-Commerce Domain

  • Cart management
  • Checkout & payment

Section 10: Sample Test Case (Frequently Asked at 3DPLM)

Login Test Case Example

FieldDescription
Test Case IDTC_LOGIN_01
ScenarioValid login
StepsEnter valid username and password
Expected ResultUser logged in successfully

Negative Test Cases

  • Invalid credentials
  • Blank fields
  • Locked account

Quick Revision Sheet – 3DPLM Interview Questions for Software Testing

  • Manual testing fundamentals
  • Test case writing
  • Defect life cycle & RCA
  • SDLC & STLC
  • Automation, API & SQL basics
  • Agile concepts
  • Scenario-based thinking

FAQ

Q: Is 3DPLM interview difficult for freshers?
 No, if fundamentals and test case concepts are clear.

Q: Is automation mandatory?
 Basic awareness is enough; focus is on manual testing.

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