Moved purpose to background, and rewrote purpose

report.lyx

@@ -379,12 +379,30 @@ The game industry is a quickly growing industry where the need for new technique
 s is large.
  One specific section where the development has stalled is the game server
  section.
+\begin_inset Note Note
+status open
+
+\begin_layout Plain Layout
+Citation needed
+\end_layout
+
+\end_inset
+
  The existing game servers are functional but they lack good fault tolerance
- and the ability to scale well.
+ and the ability to scale well
+\begin_inset Note Note
+status open
+
+\begin_layout Plain Layout
+Citation needed
+\end_layout
+
+\end_inset
+
+.
  Users will notice this in low uptime and many crashes.
  This is a problem that has existed and been resolved in other industries.
- One good example is the telecom industry which have managed to develop
+ In the telecom industry solutins to similar problems have been found.
- solutions to similar problems.
 \end_layout
 
 \begin_layout Standard
@@ -405,24 +423,30 @@ the nine nines
  industry would not have been accepted in the telecoms industry.
  This level of instability should not be accepted in the game server industry
  either.
+ An unavailabvle phone system could potentially have life threatening consequenc
+es, leaving the public unable to contant emergency services.
+ The same can not be said about an unavailable game server.
+ The statement that game servers are less important than phone systems is
+ not a reason not to draw wisdom from what the telecoms have already learnt.
 \end_layout
 
 \begin_layout Standard
-The main reason to develop reliable servers are monetary, it is important
+Moving back to the gaming industry.
+ The main reason to develop reliable servers are monetary, it is important
  for game companies to expand its customer base.
  Reliable game servers are one improvement that will create a good image
  of a company.
  In general the downtime of game servers are much higher than the downtime
  of telecom system.
- The structure of the system is similar and it should be possible to reuse
+ The structure of the system is similar in many ways and it should be possible
- solutions from the telecom system to improve game servers.
+ to reuse solutions from the telecom system to improve game servers.
+ 
 \end_layout
 
 \begin_layout Standard
-In the current state game servers is coded for each game that needs it,
+In the current state game servers are developed on a per-game basis, in
- in many cases this seems like a bad solution.
+ many cases this seems like a bad solution.
- Developers that want to make a network game need to understand network
+ Developers of network game need to understand network programming.
- programming.
  A way to change this is a generic game server which give the game developers
  a server which they implement their game towards.
  This approach would not only make it easier to develop network games, it
@@ -430,47 +454,31 @@ In the current state game servers is coded for each game that needs it,
  using the same server.
 \end_layout
 
-\begin_layout Section
-Purpose
-\end_layout
-
 \begin_layout Standard
-\begin_inset Note Note
+Some factors key to the development of GGS have been isolated.
-status open
+ Many of these come from the telecom sector.
-
+ The factors are 
-\begin_layout Plain Layout
-The purpose of the GGS project.
- What is the purpose of creating a fault tolerant server, why is it generic,
- and what good does it do to have a scalable system? In the background,
- we should give the motivations behind creating this software, but here
- we should outline why the software is needed.
-\end_layout
-
-\end_inset
-
-
-\end_layout
-
-\begin_layout Standard
-The purpose of the GGS project is to create a 
 \emph on
-scalable
+scalability, fault tolerance 
 \emph default
- and 
+and being 
-\emph on
-fault tolerant
-\emph default
- server, while still allowing the server to be as 
 \emph on
 generic
 \emph default
- as possible.
+.
- These three italicised terms need some explanation.
+ These terms are defined below.
 \end_layout
 
 \begin_layout Standard
-Scalability in computer science is a large topic and is commonly divided
+Scalability (see 
- into sub-fields, two of which are 
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sec:Scalability"
+
+\end_inset
+
+) in computer science is a large topic and is commonly divided into sub-fields,
+ two of which are 
 \emph on
 structural scalability
 \emph default
@@ -494,7 +502,14 @@ key "Bondi:2000:CSI:350391.350432"
 \end_layout
 
 \begin_layout Standard
-Fault tolerance is used to raise the level of 
+Fault tolerance (see 
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sec:Fault-Tolerance"
+
+\end_inset
+
+) is used to raise the level of 
 \emph on
 dependability
 \emph default
@@ -519,8 +534,15 @@ key "Gartner:1999:FFD:311531.311532"
 \end_layout
 
 \begin_layout Standard
-A generic game server has to be able to run different client-server network
+A generic (see 
- games regardless of the platform the clients are running on.
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "sec:Generic"
+
+\end_inset
+
+) game server has to be able to run different client-server network games
+ regardless of the platform the clients are running on.
  It runs network games of different type.
  A very rough separation of games is real time games and turn based games.
 \end_layout
@@ -576,6 +598,62 @@ One of the purposes of this thesis is to investigate how we can make a game
  layer, data store and game specific features.
 \end_layout
 
+\begin_layout Section
+Purpose
+\end_layout
+
+\begin_layout Standard
+\begin_inset Note Note
+status collapsed
+
+\begin_layout Plain Layout
+The purpose of the GGS project.
+ What is the purpose of creating a fault tolerant server, why is it generic,
+ and what good does it do to have a scalable system? In the background,
+ we should give the motivations behind creating this software, but here
+ we should outline why the software is needed.
+ This section should be shortened, and the bulk of the text should be moved
+ to theory or background.
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+The purpose of creating a generic and fault tolerant game server is to provide
+ a good framework for the development of many different types of games.
+ Allowing the system to scale up and down is a powerful way to maximize
+ the usage of physical resources.
+ By scaling up to new machines when load increases, and scaling down from
+ machines when load decreases costs and energy consumption can be optimized.
+\end_layout
+
+\begin_layout Standard
+Fault tolerance is important for the GGS in order to create a reliable service.
+ The purpose of a reliable game server is to provide a consistant service
+ to people using the server.
+ Going back to the telecom example, the purpose of creating a reliable telecom
+ system is to allow calls, possibly emergency calls, at any time.
+ Should the telecom network be unavailable at any time, emergency services
+ may become unavailable, furthermore the consumer image of the telecom system
+ degrades.
+\end_layout
+
+\begin_layout Standard
+Returning to the game industry, emergency services will not be contacted
+ using a game server, however an unavailable server will degrade the consumer
+ image of the system.
+ Consider an online casino company.
+ The online casino company's servers must be available at all times to allow
+ customers to play.
+ If the servers are unavailable, customers can not play, and the company
+ loses money.
+ In this scenario, an unavailable server can be compared to a closed real-world
+ casino.
+\end_layout
+
 \begin_layout Section
 Challenges 
 \end_layout
@@ -980,10 +1058,42 @@ Same here it is simply not true for a generic server to chose one or the
 \end_inset
 
 
+\end_layout
+
+\begin_layout Section
+Generic
+\begin_inset CommandInset label
+LatexCommand label
+name "sec:Generic"
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Note Note
+status open
+
+\begin_layout Plain Layout
+Bad name of the chapter, but here we should give the theory of how the server
+ is generic
+\end_layout
+
+\end_inset
+
+
 \end_layout
 
 \begin_layout Section
 Fault Tolerance
+\begin_inset CommandInset label
+LatexCommand label
+name "sec:Fault-Tolerance"
+
+\end_inset
+
+
 \end_layout
 
 \begin_layout Standard
@@ -1039,7 +1149,14 @@ Performance penalties
 \end_layout
 
 \begin_layout Section
-Availability 
+Availability
+\begin_inset CommandInset label
+LatexCommand label
+name "sec:Availability"
+
+\end_inset
+
+
 \end_layout
 
 \begin_layout Standard
@@ -1087,7 +1204,14 @@ messages
 \end_layout
 
 \begin_layout Section
-Scalability 
+Scalability
+\begin_inset CommandInset label
+LatexCommand label
+name "sec:Scalability"
+
+\end_inset
+
+
 \end_layout
 
 \begin_layout Standard