When we can name someone 'Senior' or 'Junior' in his specialty? What is the period that should be spent to give this title to someone?

 

  I would define "senior" and "junior" according to the level of experience. Where it gets tricky to define is whether you're counting experience in the industry, in the particular company, or in a particular team in the company (e.g. if you work for a company 10 years and then change teams, do you become a "junior" in the new team?). Some companies also include the term "senior" and "junior" in job titles. Only in that case is the meaning of the terms really well-defined

1-   junior year, and someone in their third year is a junior. Junior can be abbreviated as “jr.” in writing.

 

2-   senior year, and someone in their fourth year is a senior. Senior can be abbreviated as “sr.” in writing.

Thanks for invitation,

It depends on :

1- His "Educational Background".

2- His "Technical Certifications".

3- His "Practical Experience".

4- His Skills.

5- His Talent.

6- His Achievements. 

Period of What exactly?, This is no Quantity but Quality ti,e has nothing to do with it

It is really hard to tell but it could be determine through his or her expertise in the specific area. Some spent whole life but has been unsuccessful to develop the specialty but some develop in the young age, therefore, specialty does not relate to age but can be determine his or her command and dedication.

There is no such thing as certain period of time. It is all about mastering of skills. One might need couple of months to master the skills necessary while others might need years. 

it is dependent on his experience and what he can add an do

 

We broke out our employees into two groups - Job Family Group A and Job Family Group B. A was our Administrative/ Support/ Technicians/ etc employees and B was our Managerial/ Professional/ Specialist employees. Within these groups we had up to 6 levels based on the decision making required by the role, the level of problem solving, the leadership skills required, the level of professional expertise and knowledge required by the role, the autonomy of the role, and the amount of interaction required by the role (i.e. within a single function or across functions, within a specific business unit or across business units, within the organization or with multiple external parties, etc). For the most part, these groupings applied more to the manner in which we organized our compensation programs then in did to how we chose to write our policies, as most policies (like the code of business conduct) applied equally across all employees. This said, differences would arise in relation to the outcome of non-compliance, as the consequences would be greater if an Account Officer did something seen as a conflict of interest, for example, compared to an office assistant. Junior & Senior should not periodic matter. I depends on specific company rules & regulations.                                             

Thank u for the invitation.

I think Junior is few years experience in  the same field.

Senior must have a lot of experience in the same field.

It depends on experiences of the person

I fully agree with & endorse Mr. Ashraf E. Mohamoud's excellent submission because "Junior or senior" titles depend or vary on the aspects his has listed above. Thanx for the invitation