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This current question is closely connected to my previous questions, so they should be recalled here.
From the very beginning I haven't understand the use of distinct Careers account and integrated Jobs within SO account. OK, you did it and let it be.
However, misconceptions and disrepancies were not long in coming. In the latter question I was answered:

Careers was not a site used exclusively by employers, users were able to search for and apply for jobs with the CV on the site

and that brought more confusion than ever.

I thoroughly read introduction of Jobs, and doubled introduction (1, 2) of Developer Story, but have still no clear idea of the difference between them. The evolution of job search on SO as I see it:

Careers >> Jobs on SO >> Developer Story

Each historical stage was probably better than previous one, but the question(s) I very interested in lays in the technical side:

1. Is account on certain resource linked to another resources and in what way? How do they interconnected?
2. Does deleting/changing account on one resource affect all other resources?
3. Are they bound to StackExchange account and could they be changed separately?
4. Should I give up some of them if I am not employer or they are both-sided (employee + employer)?

Now I am facing four different but overlapping services:
SO Jobs | Careers | Developer Story | Talent

Can anybody answer above questions referring to these services?

This current question is closely connected to my previous questions, so they should be recalled here.
From the very beginning I haven't understand the use of distinct Careers account and integrated Jobs within SO account. OK, you did it and let it be.
However, misconceptions and disrepancies were not long in coming. In the latter question I was answered:

Careers was not a site used exclusively by employers, users were able to search for and apply for jobs with the CV on the site

and that brought more confusion than ever.

I thoroughly read introduction of Jobs, and doubled introduction (1, 2) of Developer Story, but have still no clear idea of the difference between them. The evolution of job search on SO as I see it:

Careers >> Jobs on SO >> Developer Story

Each historical stage was probably better than previous one, but the question(s) I very interested in lays in the technical side:

1. Is account on certain resource linked to another resources and in what way? How do they interconnected?
2. Does deleting/changing account on one resource affect all other resources?
3. Are they bound to StackExchange account and could they be changed separately?
4. Should I give up some of them if I am not employer or they are both-sided (employee + employer)?

Now I am facing four different but overlapping services:
SO Jobs | Careers | Developer Story | Talent

Can anybody answer above questions referring to these services?

This current question is closely connected to my previous questions, so they should be recalled here.
From the very beginning I haven't understand the use of distinct Careers account and integrated Jobs within SO account. OK, you did it and let it be.
However, misconceptions and disrepancies were not long in coming. In the latter question I was answered:

Careers was not a site used exclusively by employers, users were able to search for and apply for jobs with the CV on the site

and that brought more confusion than ever.

I thoroughly read introduction of Jobs, and doubled introduction (1, 2) of Developer Story, but have still no clear idea of the difference between them. The evolution of job search on SO as I see it:

Careers >> Jobs on SO >> Developer Story

Each historical stage was probably better than previous one, but the question(s) I very interested in lays in the technical side:

1. Is account on certain resource linked to another resources and in what way? How do they interconnected?
2. Does deleting/changing account on one resource affect all other resources?
3. Are they bound to StackExchange account and could they be changed separately?
4. Should I give up some of them if I am not employer or they are both-sided (employee + employer)?

Now I am facing four different but overlapping services:
SO Jobs | Careers | Developer Story | Talent

Can anybody answer above questions referring to these services?

This current question is closely connected to my previous questions, so they should be recalled here.
From the very beginning I haven't understand the use of distinct Careers account and integrated Jobs within SO account. OK, you did it and let it be.
However, misconceptions and disrepancies were not long in coming. In the latter question I was answered:

Careers was not a site used exclusively by employers, users were able to search for and apply for jobs with the CV on the site

and that brought more confusion than ever.

I thoroughly read introduction of Jobs, and doubled introduction (1, 2) of Developer Story, but have still no clear idea of the difference between them. The evolution of job search on SO as I see it:

Careers >> Jobs on SO >> Developer Story

Each historical stage was probably better than previous one, but the question(s) I very interested in lays in the technical side:

1. Is account on certain resource linked to another resources and in what way? How do they interconnected?
2. Does deleting/changing account on one resource affect all other resources?
3. Are they bound to StackExchange account and could they be changed separately?
4. Should I give up some of them if I am not employer or they are both-sided (employee + employer)?

Now I am facing four different but overlapping services:
SO Jobs | Careers | Developer Story | Talent

Can anybody answer above questions referring to these services?