Storing variable number of values of something in a database

I'm developing a QA web-app which will have some points to evaluated assigned to one of the following Categories.

Call management
Technical skills
Ticket management

As this aren't likely to change it's not worth making them dynamic but the worst point is that points are like to.

First I had a table of 'quality' which had a column for each point but then requisites changed and I'm kinda blocked.

I have to store "evaluations" that have all points with their values but maybe, in the future, those points will change.

I thought that in the quality table I could make some kind of string that have something like that

1=1|2=1|3=2

Where you have sets of ID of point and punctuation of that given value.

Can someone point me to a better method to do that?

Solution

This table is not normalized. It violates 1st Normal Form (1NF):

Evaluation
----------------------------------------
EvaluationId | List Of point=punctuation
   1         |   1=1|2=1|3=2
   2         |   1=5|2=6|3=7

You can read more about Database Normalization basics. The table could be normalized as:

Evaluation
-------------
EvaluationId 
   1         
   2         

Quality
---------------------------------------
EvaluationId | Point | Punctuation
   1         |   1   |   1   
   1         |   2   |   1
   1         |   3   |   2 
   2         |   1   |   5  
   2         |   2   |   6
   2         |   3   |   7