Index: script.txt
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--- script.txt
+++ script.txt
@@ -100,20 +100,19 @@
   - Mgmt connections are short-lived to tolerate link instability.
 - Gateways are entry points to the mgmt network.
   - They help extend it over multiple CNs by external means (e.g. FEDERICA, the
     Internet).
   - They can also route the management network to the Internet.
-- Researchers run experiments in slices spread over several nodes (as
-  slivers). *##*
+- Experiments are configured by researchers in the server and run in nodes. *##*
 
 ** Slices, slivers and nodes
-# Axel: Reverse, from PoV of researcher: select nodes, run as slivers, gruop in slices.
-- These concepts are inspired in PlanetLab.
-- A slice is a management concept that groups a set of related slivers.
-- A sliver holds the resources (CPU, memory, disk, bandwidth, interfaces…)
-  allocated for a slice in a given node.
-- A node hosts several slivers at the same time. *##*
+- Particularly, researchers select nodes for running experiments.
+- Each node is able to run several experiments simultaneously.
+- An experiment runs in a given node as a sliver which holds a share of its
+  resources (CPU, memory, disk, bandwidth, interfaces…).
+- Finally, related slivers are grouped in a slice for management purposes.
+- All these concepts are inspired in PlanetLab. *##*
 
 ** Node architecture
 # Axel: More stress on node itself.
 # Ivan: Don't zoom!!
 allows the realization of these concepts.  *##* A node consists of a CD, a RD