--- a/prepaper/finalPre.tex	Wed Feb 15 17:42:58 2017 +0900
+++ b/prepaper/finalPre.tex	Wed Feb 15 18:09:29 2017 +0900
@@ -30,19 +30,28 @@
 \twocolumn [
 \maketitle
 \begin{onecolabstract}
-There are some problems to Relational Database and NoSQL.
-One of them as Impedance mismatch. This problem is cased by a difference between the first normal form of database and the programs.
-There is a problem that NoSQL is unfit for parallel processing.
+There is a gap between convensional Database and the program structures,
+for example item list structure in a game have to be a relation table of
+items and users. It is sometimes called Ipmidance mismatch.
+We introduce a tree structured Database Jungle. Jungle keeps old version of the tree structures, which is suitable for multi-threads.
+We are going to use Jungle DB in Unity which is a game developing enviroments re
+witten in C\#. To adapt C\# programming we implement Jungle in C\#.
+There are several implementations of C\# in OS X.
+We evaliate C\# Jungle in a real game and C\# in implementaions. 
 
-Laboratory proposes the database Jungle that solves those problems.
-Jungle does not destroy the tree structure.
-Jungle develops as a scalable database.
+%There are some problems to Relational Database and NoSQL.
+%One of them as Impedance mismatch. This problem is cased by a difference between the first normal form of database and the programs.
+%There is a problem that NoSQL is unfit for parallel processing.
 
-The structure of the game like the structure of the web.
-This paper suggests a method to use as a database of game engine Unity.
+%Laboratory proposes the database Jungle that solves those problems.
+%Jungle does not destroy the tree structure.
+%Jungle develops as a scalable database.
+
+%The structure of the game like the structure of the web.
+%This paper suggests a method to use as a database of game engine Unity.
 % way to use? how to use?
 
-Jungle rewrite C\# programming language by written Java.  
+%Jungle rewrite C\# programming language by written Java.  
 
 % まだかけてない...
 \end{onecolabstract}]
@@ -304,7 +313,7 @@
 \section{まとめ}
 
 本研究ではJungleDatabaseをC\#で再実装を行った。
-JavaとC\#は比較的似ている言語であるため移行する方法を確立した。
+JavaとC\#は比較的似ている言語であり、これらの間で規則的に移行する方法を確立した。
 
 性能としてもJava版に劣らない、もしくはそれ以上のパフォーマンスを出せる。
 
@@ -326,8 +335,9 @@
 ゲームにおいて過去の木を持ち続けることはパフォーマンスの低下につながる。
 そのため、過去の木をどこまで必要かを検討しなければならない。
 
-現在C\#版のJungleにはデータを永続化させる仕組みは備わっていない。
 実用的なゲームのデータベースとして使うためには永続化を実装する必要がある。
+JungleDBを永続化させるためには書き込みログをディスクや他ノードに複製する仕組みが必要である。
+これは将来の課題である。
 
 \nocite{*}
 \bibliographystyle{junsrt}