Selection interviews are still the most common way of appointing new staff.  If you are the candidate, your objective is to persuade those hiring that you are the best person for the job.  Having been interviewed many times myself and interviewed loads of applicants, I believe that there are 5 things that you must be able to demonstrate in job interviews:

1. Experience so that you can step into the role and make an impact from day one.  Remember you are unlikely to be able to show experience in every aspect of the job but look for areas where you have something similar to what is required.
2. Results and achievements.  Too often candidates focus on talking about their responsibilities rather than what they have delivered in terms of results.
3. Potential.   Recruiting someone is expensive so it is important to demonstrate that you have the potential to grow and progress within the organisation.
4. Fit.  Employers want to know that you can get on with others and work successfully as part of a team.
5. Confidence.  At interviews we are all nervous.  Being confident is about knowing and believing that you have something to offer.  The way you interact during the interview and handle challenging questions demonstrates confidence.

Job interviews are not always predictable but I believe that you can increase your chances of success by focusing on the above areas.