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--- stats:schema [2011/09/27 12:49]
Patrick Michel [Account]
+++ stats:schema [2011/09/28 21:43]
Patrick Michel [Associated to Stat System]
@@ Line 1: / Line 1: @@
 ====== XCend Schema ======
-This is the underlying [[:syntax|XCend schema]] of the whole [[:stats:start]]. Everything //persistent// is represented in the schema.
+This is the underlying [[:start]] Schema of the whole [[:stats:start]]. Everything //persistent// is represented in the schema. The schema's top level element is [[:stats:schema:stats]], but it directly splits into the three main groups
+  * [[:stats:schema:account]]
+  * [[:stats:schema:exam]]
+  * [[:stats:schema:exercise]].
 ===== Structure and Integrity Constraints =====
@@ Line 9: / Line 13: @@
 </code>
-{{page>:stats:schema:account#Schema&noheader&nofooter}}
+{{page>:stats:schema:account#Schema&noheader&nofooter&noindent}}
-{{page>:stats:schema:exercises#Schema&noheader&nofooter}}
+{{page>:stats:schema:exercise#Schema&noheader&nofooter&noindent}}
-{{page>:stats:schema:exams#Schema&noheader&nofooter}}
+{{page>:stats:schema:exam#Schema&noheader&nofooter&noindent}}
 <code xcend>
@@ Line 21: / Line 25: @@
 ===== Atomic Procedures =====
-==== Account ====
+This section lists all atomic //manipulations// associated with the schema.
+==== Associated to the Stat System ====
-These are the associated procedures for accounts, i.e. one of their parameters is a ''username'' and they will most likely be offered in a corresponding ''Account'' class in an OO setting. Many of them, however, will also have other ''ident'' parameters, which makes it possible to offer them in these classes, too.
+These are the associated procedures for [[:stats:schema:stats]], i.e. they have no necessary parameters, as the [[:stats:]] is unique and does not need disambiguation. Some of them, however, will have ''ident'' parameters, which makes it possible to offer them in these classes, too.
+{{page>:stats:schema:stats#Procedures&doindent&noheader&nofooter}}
+==== Associated to Account ====
+These are the associated procedures for [[:stats:schema:account]], i.e. one of their parameters is a ''username'' and they will most likely be offered in a corresponding ''Account'' class in an OO setting. Many of them, however, will also have other ''ident'' parameters, which makes it possible to offer them in these classes, too.
 {{page>:stats:schema:account#Procedures&doindent&noheader&nofooter}}
+==== Associated to Exam ====
+These are the associated procedures for [[:stats:schema:exam]], i.e. one of their parameters is an ''id'' of an exam and they will most likely be offered in a corresponding ''Exam'' class in an OO setting. Again, these procedures might be offered in other classes, too.
+{{page>:stats:schema:exam#Procedures&doindent&noheader&nofooter}}
+==== Associated to Exercise ====
+These are the associated procedures for [[:stats:schema:exercise]], i.e. one of their parameters is an ''id'' of an exercise and they will most likely be offered in a corresponding ''Exercise'' class in an OO setting. Again, these procedures might be offered in other classes, too.
+{{page>:stats:schema:exercise#Procedures&doindent&noheader&nofooter}}
+==== Associated to Group ====
+These are the associated procedures for [[:stats:schema:group]], i.e. they have two parameters for the exercise id and the group id. They will also most likely be offered in a corresponding ''Group'' class in an OO setting, which has an associated ''Exercise'' object.
+{{page>:stats:schema:group#Procedures&doindent&noheader&nofooter}}
+==== Associated to Student ====
+These are the associated procedures for [[:stats:schema:student]], i.e. they have two parameters for the exercise id and the student id. They will also most likely be offered in a corresponding ''Student'' class in an OO setting, which has an associated ''Exercise'' object.
+{{page>:stats:schema:student#Procedures&doindent&noheader&nofooter}}

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