Formatting Objects and Page-breaks

Dear sirs,
        
        I'm writing to ask some advices about Formatting Objects.
        I should have a question. If I read the actual XSL WD I don't mean
well how I may decide page-breaks and 'who' must decide page-breaks.

        Is 'a FO document' already completely paged or another formatter
have to decide for example if a paragraph at the end of a page must be break?

        Are the only feature for print formatting 'break-before,
break-after, keep, orphans, widows'? 

        May you help me with some suggestions of how you 'face' the problem
(it's very important to decide how implement software)?

        Another last thing: which of the following 'FO document' is right?

1)
<fo:basic-page-sequence
xmlns:fo="<http://www.w3.org/TR/FO>http://www.w3.org/TR/FO">
        <fo:simple-page-master name="even"/>
         <fo:queue name="body">
        ........
         </fo:queue>
        <fo:simple-page-master name="odd"/>
         <fo:queue name="body">
        ........
         </fo:queue>
</fo:basic-page-sequence>

or

2)
<fo:basic-page-sequence
xmlns:fo="<http://www.w3.org/TR/FO>http://www.w3.org/TR/FO">
        <fo:simple-page-master name="even">
         <fo:queue name="body>
        ........
         </fo:queue>
        </fo:simple-page-master>
        <fo:simple-page-master name="odd">
         </fo:queue name="body">
        ........
         </fo:queue>
        </fo:simple-page-master>
</fo:basic-page-sequence>

Regards.

______________________
Stefano Bovone
Elsag S.p.a.
Via Puccini 2 
16105 Sestri Ponente (GE)
Italy