[Gzz-commits] gzz/Documentation/misc/hemppah-progradu mastert...

[Hermanni Hyytiälä]

CVSROOT:        /cvsroot/gzz
Module name:    gzz
Changes by:     Hermanni Hyytiälä <address@hidden>      03/03/20 07:18:43

Modified files:
        Documentation/misc/hemppah-progradu: masterthesis.tex 

Log message:
        clarify that there are only two approaches

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/gzz/Documentation/misc/hemppah-progradu/masterthesis.tex.diff?tr1=1.163&tr2=1.164&r1=text&r2=text

Patches:
Index: gzz/Documentation/misc/hemppah-progradu/masterthesis.tex
diff -u gzz/Documentation/misc/hemppah-progradu/masterthesis.tex:1.163 
gzz/Documentation/misc/hemppah-progradu/masterthesis.tex:1.164
--- gzz/Documentation/misc/hemppah-progradu/masterthesis.tex:1.163      Thu Mar 
20 06:51:01 2003
+++ gzz/Documentation/misc/hemppah-progradu/masterthesis.tex    Thu Mar 20 
07:18:43 2003
@@ -167,11 +167,15 @@
 overlay network.
 
 In the end, however, we observe that there are only two approaches in which 
all modern Peer-to-Peer
-systems fall: the loosely structured approach and the tightly structured 
approach. In the loosely
-structured approach the construction and the maintenance of the overlay is 
controlled 
-loosely. This approach gives freedom for participating peers
-to perform certain tasks in a Peer-to-Peer network. On the other hand in the 
tightly structured
-approach, the overlay is constructed determistically, which all participating 
peers have to follow.
+systems fall: the loosely structured approach and the tightly structured 
approach. By structure, we refer to
+the topology of the overlay network, i.e., how the connections between 
participating peers are created
+and maintained. In the loosely structured approach the construction and the 
maintenance of the overlay is controlled 
+loosely. The placement of services and topology of the overlay is random. Data 
lookups in loosely structured systems are 
+not very efficient, because of unstructured properties of the overlay. On the 
other hand, in the tightly structured
+approach the overlay is constructed determistically, which all participating 
peers have to follow. The topology of the
+overlay and the placement of services is controlled tightly therefore enabling 
more scalable and efficient data lookups.
+
+In the following sections, we will discuss in more detail the properties of 
these approaches.
 
 
 \section{Centralized}