Purpose of an interview
Purpose of an Interview
Understand why interviews are conducted, what employers evaluate, what candidates should learn from the conversation, and how students can prepare to present their capabilities with confidence and evidence.
Introduction
A job interview is a structured professional conversation between a candidate and one or more representatives of an organization. It allows both sides to exchange information, clarify expectations, and evaluate whether the role and candidate are reasonably aligned.
From the employer's perspective, an interview helps assess whether the candidate possesses the knowledge, skills, behaviours, motivation, and learning potential required for the role. From the candidate's perspective, it provides an opportunity to understand the position, responsibilities, team, expectations, working conditions, and career possibilities.
An interview is not simply a question-and-answer session. It is a two-way professional evaluation in which both the employer and the candidate collect evidence before making a decision.
Learning Objectives
After completing this lesson, you should be able to:
- Explain the primary purpose of a job interview.
- Describe what employers may evaluate during an interview.
- Understand the candidate's responsibilities during the process.
- Differentiate between verifying information and assessing capability.
- Recognize why interviews are considered a two-way process.
- Identify the purpose of different interview rounds.
- Prepare evidence from projects, education, internships, and other experiences.
- Approach an interview as a professional conversation rather than a memory test.
Prerequisites
This is a foundation-level lesson, so no previous interview experience is required. However, it will be helpful if you have:
- A résumé or a basic list of your education and experience.
- One academic, personal, internship, or volunteer project to discuss.
- A general idea of the type of role you want to pursue.
- A willingness to reflect honestly on your strengths and development areas.
Beginner Reminder
You do not need full-time professional experience to participate meaningfully in an interview. Students can use genuine evidence from academic projects, internships, volunteering, clubs, competitions, hackathons, and independent learning.
Why Do Organizations Conduct Interviews?
A résumé, application form, portfolio, or assessment result gives an employer useful information. However, written documents cannot always demonstrate how a candidate communicates, thinks, solves problems, applies knowledge, responds to follow-up questions, or handles unfamiliar situations.
An interview creates an opportunity to explore these areas through conversation, examples, technical questions, practical exercises, behavioural questions, scenarios, presentations, or case studies.
Interview Evaluation Framework
Candidate Information + Role-Relevant Evidence + Professional Discussion = Better-Informed Hiring Decision
The interview does not replace every other selection activity. Instead, it normally contributes additional evidence to a broader process that may also include application screening, assessments, practical tests, background verification, or additional interview rounds.
Purpose of an Interview From the Employer's Perspective
Employers conduct interviews to collect information that is relevant to the role and selection decision. The exact evaluation areas depend on the position, required skills, experience level, and interview stage.
1. Verify the Candidate's Background
The interviewer may ask the candidate to explain their education, projects, internships, employment, certifications, achievements, and responsibilities.
The objective is to understand:
- What the candidate has studied or learned.
- What projects or assignments the candidate has completed.
- What responsibility the candidate personally handled.
- Whether the candidate can explain information included in the résumé.
- How the candidate's experience relates to the available role.
2. Assess Knowledge and Skills
An employer may need to determine whether the candidate possesses the knowledge and skills required to perform or learn the work.
Depending on the role, the interviewer may explore:
- Technical fundamentals.
- Communication skills.
- Problem-solving ability.
- Analytical reasoning.
- Customer-service awareness.
- Writing or presentation ability.
- Business or domain knowledge.
- Role-specific tools and processes.
3. Evaluate the Application of Knowledge
Memorizing a definition is different from applying a concept. Employers may therefore move from basic questions to practical or scenario-based questions.
Knowledge Question
“What is a database index?”
This checks whether the candidate understands the concept.
Application Question
“A frequently used database query is taking too long. How would you investigate whether an index may help?”
This explores whether the candidate can apply the concept to a realistic situation.
4. Understand the Candidate's Problem-Solving Approach
In problem-solving questions, the reasoning process can be as important as the final answer.
An interviewer may observe whether the candidate:
- Clarifies the problem before proposing a solution.
- Identifies relevant and irrelevant information.
- Breaks a complex problem into manageable parts.
- States assumptions clearly.
- Considers more than one possible approach.
- Identifies risks, limitations, or trade-offs.
- Tests or validates the proposed solution.
- Explains the reasoning in an understandable manner.
5. Evaluate Communication
Effective interview communication does not require complicated vocabulary. It requires the candidate to understand the question, organize the response, explain the main point, and provide relevant supporting information.
An interviewer may observe whether the candidate can:
- Listen carefully.
- Answer the question that was asked.
- Communicate ideas clearly.
- Provide relevant examples.
- Avoid unnecessary details.
- Ask for clarification when required.
- Respond professionally to follow-up questions.
- Acknowledge uncertainty honestly.
6. Understand Motivation and Career Direction
Employers may ask why the candidate applied, what interests them about the role, what they want to learn, and how the opportunity relates to their career direction.
The interviewer may try to understand whether the candidate has:
- A reasonable understanding of the role.
- A genuine interest in the relevant field.
- Realistic expectations about learning and development.
- A willingness to build the required skills.
- A thoughtful reason for applying.
7. Explore Behaviour Through Examples
Behavioural questions ask candidates to describe how they handled a genuine situation in the past. These questions may explore teamwork, adaptability, communication, planning, learning, problem-solving, or responsibility.
Example Behavioural Question
“Tell me about a time when your project did not go according to plan. What was your responsibility, what action did you take, and what did you learn?”
8. Determine Role Alignment
A candidate may be capable but better suited to a different role. The interview helps the employer understand whether the candidate's skills, interests, and potential reasonably align with the responsibilities of the available position.
Role alignment may include:
- Required knowledge and skills.
- Type of work performed.
- Expected level of responsibility.
- Learning requirements.
- Communication expectations.
- Availability or location requirements.
- Working arrangements relevant to the position.
9. Clarify Incomplete Information
An interview allows the employer to explore information that may be incomplete or unclear in the application.
For example, an interviewer may ask:
- What was the exact scope of a project?
- Which task did the candidate personally complete?
- What technology was used and why?
- What was learned from a failure or difficulty?
- What does a certification or qualification cover?
10. Support a Hiring Decision
The information collected during an interview may be considered together with other selection inputs, such as the résumé, application, portfolio, assessment results, practical exercises, eligibility requirements, and additional interview rounds.
The purpose is to support an informed decision based on role-related information rather than personal assumptions alone.
Purpose of an Interview From the Candidate's Perspective
Candidates sometimes believe that their only responsibility is to answer questions. However, an interview also allows the candidate to present evidence, clarify information, understand the opportunity, and decide whether the role supports their career direction.
1. Present Qualifications With Evidence
The interview gives candidates an opportunity to explain the meaning behind the information written in their résumé.
Weak Claim
“I have good problem-solving skills.”
This statement is too general because it does not provide evidence.
Evidence-Based Answer
“During my final-year project, our application produced duplicate transaction records. I traced the issue to repeated requests, added an idempotency check, and created test cases to verify the correction.”
This answer provides context, individual action, technical reasoning, and validation.
2. Demonstrate Potential
Students and fresh graduates may not have extensive professional experience. However, they can demonstrate potential through genuine examples from:
- Academic projects.
- Internships.
- Laboratory assignments.
- Hackathons.
- Volunteer activities.
- Student clubs.
- Personal projects.
- Independent learning.
- Competitions and presentations.
- Part-time or temporary work.
The candidate should explain what they personally contributed, the difficulty they encountered, the action they took, the outcome, and what they learned.
3. Understand the Actual Role
A job title may not explain the complete nature of a position. Candidates can use the interview to understand:
- The primary responsibilities.
- The problems the role is expected to solve.
- The skills used regularly.
- The team structure.
- The expected learning process.
- How success may be evaluated.
- The possible next stages of the selection process.
4. Evaluate the Opportunity
Candidates should consider whether the opportunity aligns with their interests, current capabilities, learning goals, practical circumstances, and desired career direction.
The objective is not to find a perfect organization. The objective is to collect reliable information that supports a thoughtful decision if the selection process progresses.
5. Ask Meaningful Questions
When invited to ask questions, the candidate can use the opportunity to understand the role more clearly.
Useful Questions to Ask the Interviewer
- What would be the primary responsibilities for someone joining this role?
- Which skills would be most useful during the first few months?
- What types of projects may an entry-level team member support?
- What are the main learning expectations for a new team member?
- How does the team normally collaborate on projects?
- What are the remaining stages of the selection process?
6. Demonstrate Professionalism
Interview professionalism is demonstrated through preparation, punctuality, active listening, respectful communication, honesty, thoughtful participation, and protection of confidential information.
Interview as a Two-Way Evaluation
The Employer Tries to Understand
- Can the candidate perform or learn the work?
- Does the candidate possess relevant fundamentals?
- Can the candidate apply knowledge?
- Can the candidate communicate their reasoning?
- Are the candidate's examples credible and relevant?
- Does the available evidence support progression?
The Candidate Tries to Understand
- What work will I perform?
- What skills will I use and develop?
- What will be expected from me?
- Does the role support my career direction?
- What information remains unclear?
- What are the next stages of the process?
Think of an Interview as a Professional Bridge
A résumé stands on one side of the bridge and the actual role stands on the other. The interview connects them by allowing the employer and candidate to test whether the information, evidence, expectations, and opportunity reasonably match.
Different Interviews Have Different Purposes
A recruitment process may include multiple interview rounds. Each round can focus on different information.
| Interview Type | Possible Purpose | Student Preparation |
|---|---|---|
| Screening Interview | Clarify basic qualifications, interest, availability, and role-related information. | Review your résumé, introduction, motivation, availability, and the job description. |
| Technical Interview | Explore technical knowledge, practical application, reasoning, troubleshooting, or role-specific ability. | Revise fundamentals, practise explanations, solve problems, and review your projects. |
| Behavioural Interview | Explore past actions involving teamwork, learning, responsibility, adaptability, planning, or communication. | Prepare genuine examples using a structured method such as STAR-L. |
| Situational Interview | Understand how the candidate may approach a hypothetical workplace situation. | Practise identifying goals, constraints, stakeholders, alternatives, risks, and decisions. |
| Practical Test | Observe how the candidate applies a skill through coding, writing, analysis, design, troubleshooting, or another task. | Practise completing tasks while explaining your approach, assumptions, validation, and result. |
| Case Interview | Explore structured analysis, problem decomposition, assumptions, recommendations, and communication. | Practise dividing broad problems into logical components before recommending a solution. |
| Panel Interview | Allow multiple interviewers to explore different role-related areas. | Listen carefully, answer the current question, and remain professionally engaged with the complete panel. |
| HR or Final Discussion | Clarify employment-related information, continuing interest, availability, expectations, or unanswered questions. | Review the opportunity as a whole and prepare professional questions. |
Important
Interview stages and evaluation areas vary by organization and role. Prepare according to the job description and the information provided for your specific application.
Qualification Verification vs Capability Evaluation
One important distinction is the difference between checking whether a candidate has a qualification and evaluating whether they can apply the related capability.
| Area | Verification | Evaluation |
|---|---|---|
| Education | What qualification did you complete? | What relevant knowledge did you develop? |
| Project | Which project did you complete? | What problem did you solve and what did you personally do? |
| Technical skill | Have you learned SQL? | Can you design or explain a query for a realistic requirement? |
| Team experience | Did you work in a team? | How did you coordinate work or resolve a disagreement? |
| Certification | Which certification did you complete? | How have you applied the concepts learned? |
Students should prepare for both types of questions. Be ready to state what you completed and to explain what you understood, applied, produced, or learned.
From Beginner Answer to Strong Answer
Consider the following interview question:
“Tell me about a project you completed.”
Weak Answer
“We created a college website using different technologies. It was a team project, and we completed it successfully.”
Why It Is Weak
- The candidate's individual responsibility is unclear.
- The problem being solved is not explained.
- No specific technology or decision is described.
- No challenge, result, or learning is included.
Improved Answer
“My team created a web-based attendance system for our final-year project. I was responsible for the database design and attendance reporting module. I created the student, course, and attendance tables, defined their relationships, and wrote queries for monthly reports. During testing, we found duplicate attendance records, so I added a validation rule and created test cases for repeated submissions. The project helped me understand database relationships, input validation, and the importance of testing edge cases.”
Why It Is Stronger
- The project purpose is clear.
- The candidate's individual contribution is identified.
- Specific technical activities are included.
- A genuine problem and response are described.
- The candidate explains what was learned.
What an Interview Should Not Become
A professional interview should focus on information relevant to the role and selection process. It should not become:
- A competition to confuse or embarrass the candidate.
- A test of memorized answers alone.
- A judgment based only on personal similarity.
- A casual discussion without clear objectives.
- A guarantee of employment.
- An opportunity for the candidate to exaggerate or invent experience.
- A reason to reveal confidential information from a previous employer, client, university, or project.
Protect Confidential Information
If a project cannot be discussed in detail, explain the general problem, your responsibility, the type of approach used, and what you learned without exposing restricted names, data, source code, documents, or business information.
Step-by-Step Interview Approach for Students
Step 1: Understand the Role
Read the job description and identify the major responsibilities, mandatory skills, desirable skills, and expected outcomes.
Step 2: Review Your Application
Revisit your résumé, project details, qualifications, certifications, and any information submitted during the application.
Step 3: Create an Evidence Bank
Select examples that demonstrate problem-solving, teamwork, learning, planning, communication, adaptability, and technical ability.
Step 4: Revise Role-Relevant Fundamentals
Focus on the concepts most closely connected to the job instead of trying to study every possible subject.
Step 5: Practise Speaking Aloud
Record your introduction, project explanation, behavioural examples, and technical explanations. Review whether your answers are clear, relevant, and supported by evidence.
Step 6: Prepare Questions
Prepare thoughtful questions about the responsibilities, team, learning expectations, and selection stages.
Step 7: Participate Professionally
Listen fully, clarify uncertainty, organize your answer, provide evidence, and remain honest when you do not know something.
Step 8: Reflect After the Interview
Record the questions you remember, identify strong and weak responses, correct any misunderstandings, and update your preparation plan.
Best Practices for Candidates
1. Listen Before Answering
Allow the interviewer to complete the question. Pay attention to whether they are asking for a definition, example, solution, comparison, or personal experience.
2. Clarify Unclear Requirements
If a question is ambiguous, ask a brief clarification question rather than guessing the intended meaning.
3. Begin With the Main Point
State your direct answer first, then provide the explanation, example, or supporting evidence.
4. Use Genuine Evidence
Prefer a specific academic, internship, volunteer, or personal-project example over a general statement.
5. Explain Your Personal Contribution
Team projects are valuable, but clearly identify what you personally designed, implemented, tested, analyzed, coordinated, or learned.
6. Think Aloud During Practical Questions
Explain assumptions, approach, alternatives, tests, and edge cases so the interviewer can understand your reasoning.
7. Be Honest About Knowledge Gaps
If you do not know an answer, acknowledge it professionally. You may explain related knowledge or describe how you would investigate the topic, but do not pretend to know something you do not.
8. Ask Relevant Questions
Use the closing part of the interview to understand the role, learning expectations, responsibilities, or remaining selection stages.
Common Interview Mistakes
Common Mistakes
- Memorizing answers word for word.
- Giving the same answer for every role.
- Speaking without identifying the main question.
- Using only general claims without evidence.
- Describing team achievements without personal contribution.
- Providing excessive background before the main answer.
- Guessing when the question is unclear.
- Pretending to know an unfamiliar concept.
- Criticizing previous employers, teachers, or teammates.
- Sharing confidential information.
- Failing to prepare questions for the interviewer.
- Assuming that completing the interview guarantees selection.
Better Practices
- Prepare frameworks instead of memorized scripts.
- Adapt examples to the job description.
- Answer the main question before adding detail.
- Support claims with genuine evidence.
- Explain individual responsibility clearly.
- Keep background information concise.
- Ask for clarification when necessary.
- Acknowledge knowledge gaps honestly.
- Discuss difficult experiences professionally.
- Protect private and confidential information.
- Prepare meaningful role-related questions.
- Treat the interview as one stage of the hiring process.
Real-World Use Cases
Use Case 1: Fresher With No Full-Time Experience
A computer science student applies for an entry-level software role. The student uses a final-year project to explain database design, debugging, testing, teamwork, and learning.
The purpose of the interview is not only to check employment history. It is also to understand the student's fundamentals, contribution, reasoning, and ability to learn.
Use Case 2: Candidate Changing Career Direction
A candidate from customer support applies for a business-analysis role. During the interview, the candidate explains experience gathering customer requirements, documenting issues, coordinating with technical teams, and validating solutions.
The interview helps determine whether the candidate's transferable experience aligns with the new role.
Use Case 3: Technical Practical Assessment
A candidate is asked to write pseudocode for identifying duplicate values. The interviewer may observe whether the candidate clarifies the input, selects an appropriate structure, explains the approach, considers edge cases, and tests the solution.
The purpose is broader than obtaining a final answer. The exercise provides evidence about problem-solving and technical communication.
Use Case 4: Candidate Evaluating the Opportunity
A student receives an interview for a role with a broad title. By asking about daily responsibilities, training, tools, and team collaboration, the student gains a clearer understanding of the opportunity.
This demonstrates why the interview is a two-way process.
Practical Activity
Define Your Interview Purpose
Select one role you are preparing for and complete the following three-part activity.
Part A: Employer Perspective
- What are the three most important responsibilities in the job description?
- Which skills is the employer likely to explore?
- What evidence can demonstrate each skill?
- What practical task might reasonably relate to the role?
Part B: Candidate Perspective
- What do you want the interviewer to understand about you?
- Which project or experience best demonstrates your potential?
- Which areas require additional preparation?
- What three questions would you ask about the opportunity?
Part C: Personal Interview Objective
“By the end of this interview, I want the interviewer to understand that I can __________, I have demonstrated this through __________, and I am prepared to learn __________.”
Knowledge Check
Question 1
Which statement best describes the purpose of an interview?
- To test how many answers a candidate has memorized.
- To collect role-relevant information and allow both sides to evaluate alignment.
- To guarantee employment to the strongest speaker.
- To repeat all information already available in the résumé.
Correct Answer: B
An interview supports role-related evaluation while allowing the candidate to understand the opportunity.
Question 2
Why might an interviewer ask a follow-up question?
- Only to make the interview longer.
- To force the candidate to change every answer.
- To clarify the response and understand knowledge, action, or reasoning in greater depth.
- To provide the complete answer to the candidate.
Correct Answer: C
Follow-up questions may request clarification, evidence, assumptions, alternatives, results, or learning.
Question 3
What should a fresher use when professional experience is limited?
- Invented workplace experience.
- Only theoretical definitions.
- Academic projects, internships, volunteering, competitions, and personal learning experiences.
- Confidential information from another organization.
Correct Answer: C
Genuine educational and project experiences can demonstrate capability, responsibility, and learning potential.
Question 4
What is the best approach when a candidate does not understand a question?
- Guess what the interviewer means and answer immediately.
- Ignore the question.
- Ask a concise clarification question before answering.
- Change the subject.
Correct Answer: C
Reasonable clarification can prevent an irrelevant answer and demonstrates careful listening.
Question 5
Which answer provides the strongest evidence of teamwork?
- “I work well with everyone.”
- “Teamwork is very important.”
- “During our project, I coordinated the testing schedule, resolved conflicting availability, and consolidated the results before the submission deadline.”
- “My team completed the assignment.”
Correct Answer: C
It provides a specific context, individual action, and observable contribution.
Frequently Asked Questions
Is the purpose of every interview the same?
No. A screening interview may clarify basic information, while a technical interview may explore knowledge and problem-solving. A behavioural interview may focus on past actions, and a practical test may assess application of skills.
Is an interview only for the employer?
No. Candidates can also use the interview to understand the role, responsibilities, team, expectations, and remaining selection stages.
Can students use college projects as interview evidence?
Yes. A student can discuss academic projects, internships, volunteer work, competitions, hackathons, clubs, personal projects, or other genuine experiences. The candidate should clearly explain their individual contribution.
Does completing an interview mean the candidate is selected?
No. An interview normally contributes information to a broader selection process. Additional assessments, interviews, eligibility requirements, or organizational decisions may also be involved.
What should I do if I do not know an answer?
Acknowledge the gap honestly. If appropriate, explain related knowledge, state reasonable assumptions, or describe how you would investigate the topic. Do not invent knowledge or experience.
Should I memorize interview answers?
Memorizing complete answers can make responses sound unnatural and inflexible. Prepare frameworks, key evidence, and genuine examples so that you can adapt your response to the actual question.
Why do interviewers ask the same topic in different ways?
Different questions may explore different levels of understanding. One question may check knowledge, another may test application, and a follow-up may request evidence, assumptions, alternatives, or validation.
Should I ask questions at the end of the interview?
If the interviewer provides an opportunity, relevant questions can help you understand the role, responsibilities, learning expectations, team, or remaining selection stages.
Self-Assessment Checklist
Before moving to the next lesson, confirm that you can:
- Explain why organizations conduct interviews.
- Describe what an employer may evaluate.
- Explain why an interview is a two-way process.
- Identify evidence you can use as a student or fresher.
- Differentiate between verification and capability evaluation.
- Recognize the purpose of several interview types.
- Prepare meaningful questions about a role.
- Explain how you will prepare before an interview.
- Describe how you will participate professionally during an interview.
- Explain how reflection can improve future interview performance.
Conclusion
The purpose of an interview is to create a structured opportunity for an employer and candidate to exchange role-relevant information. The employer attempts to understand the candidate's capabilities and potential, while the candidate attempts to understand the role, expectations, and opportunity.
Students should avoid treating interviews as memory contests. Effective preparation involves understanding the job description, identifying relevant evidence, revising important knowledge, practising clear explanations, anticipating follow-up questions, and preparing thoughtful questions.
Once you understand the purpose of an interview, every later preparation activity becomes more focused. Your résumé, professional introduction, technical revision, STAR-L stories, practical exercises, and mock interviews can all be connected to one goal: presenting accurate, role-relevant evidence in a clear and professional manner.
Key Takeaways
- An interview is a structured, two-way professional conversation.
- Employers use interviews to collect role-related evidence about knowledge, skills, reasoning, behaviour, motivation, and potential.
- Candidates use interviews to present evidence and understand the role and organization.
- A résumé states information, while an interview allows the candidate to explain and demonstrate it.
- Students can use projects, internships, volunteering, clubs, competitions, and personal learning as evidence.
- Different interview rounds may have different purposes.
- Strong candidates listen, clarify, organize, explain, support claims with evidence, and remain honest.
- An interview supports a hiring decision but does not guarantee employment.