Lab_6

survey

docs/design/README.md

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+# Проєктування бази даних
+
+## BE модель
+
+<center style="
+    border-radius:4px;
+    border: 1px solid #cfd7e6;
+    box-shadow: 0 1px 3px 0 rgba(89,105,129,.05), 0 1px 1px 0 rgba(0,0,0,.025);
+    padding: 1em;"
+>
+
+@startuml
+
+entity Account <<ENTITY>>
+entity Account.username <<TEXT>>
+entity Account.password <<TEXT>>
+
+entity Survey <<ENTITY>>
+entity Survey.name <<TEXT>>
+entity Survey.duration <<TEXT>>
+entity Survey.isPaused <<BOOLEAN>>
+entity Survey.isNamed <<BOOLEAN>>
+
+entity Question <<ENTITY>>
+entity Question.text <<TEXT>>
+
+entity Responce <<ENTITY>>
+entity Responce.value <<TEXT>>
+
+entity Link <<ENTITY>>
+entity Link.usageLimit <<INT>>
+entity Link.responceLimit <<INT>>
+entity Link.uses <<INT>>
+entity Link.responces <<INT>>
+entity Link.path <<TEXT>>
+
+Account.username --* Account
+Account.password --* Account
+
+Survey.name --* Survey
+Survey.duration --* Survey
+Survey.isPaused --* Survey
+Survey.isNamed --* Survey
+
+Link.usageLimit -u-* Link
+Link.responceLimit -u-* Link
+Link.uses --* Link
+Link.responces --* Link
+Link.path -u-* Link
+
+Responce.value -u-* Responce
+
+Question.text -u-* Question
+
+Account "1,1" -- "0,*" Survey
+Survey "1,1" -- "0,*" Question
+Question "1,1" -r- "0,*" Responce
+Account "0,1" -r- "0,*" Responce
+Link "0,*" -- "1,1" Survey
+
+@enduml
+
+</center>
+
+## ER-модель
+
+<center style="
+    border-radius:4px;
+    border: 1px solid #cfd7e6;
+    box-shadow: 0 1px 3px 0 rgba(89,105,129,.05), 0 1px 1px 0 rgba(0,0,0,.025);
+    padding: 1em;"
+>
+
+@startuml
+
+entity Account <<ENTITY>> {
+    id:INT
+    username:CHAR(64)
+    password:CHAR(256)
+}
+
+entity Responce <<ENTITY>> {
+    id:INT
+    value:CHAR(16384)
+}
+
+entity Question <<ENTITY>> {
+    id:INT
+    text:CHAR(256)
+}
+
+entity Survey <<ENTITY>> {
+    id:INT
+    name:CHAR(256)
+    duration:CHAR(256)
+    isPaused:BOOLEAN
+    isNamed:BOOLEAN
+}
+
+entity Link <<ENTITY>> {
+    id:INT
+    uses:INT
+    responces:INT
+    usageLimit:INT
+    responceLimit:INT
+    path:CHAR(32)
+}
+
+Responce "0,*" --> "1,1" Question
+Question "0,*" --> "1,1" Survey
+Survey "0,*" --> "1,1" Account
+Link "0,*" --> "1,1" Survey
+Responce "0,*" --> "0,1" Account
+
+@enduml
+
+</center>
+
+## Реляційна схема
+
+<center style="
+    border-radius:4px;
+    border: 1px solid #cfd7e6;
+    box-shadow: 0 1px 3px 0 rgba(89,105,129,.05), 0 1px 1px 0 rgba(0,0,0,.025);
+    padding: 1em;"
+>
+
+![relational_schema](./relational_scheme.png)
+
+</center>