Database-UML.md

 ```mermaid
 classDiagram
-    class Session
-    Session : +BIGINT[UNSIGNED] id
-    Session : +CHAR[20] commit
-    Session : +DATETIME start_date
-    Session : +DATETIME end_date
-    Session : +VARCHAR[20] hpc_system
+    class session
+    session : +SERIAL id
+    session : +CHAR[20] commit
+    session : +DATETIME start_date
+    session : +DATETIME end_date
+    session : +VARCHAR[255] hpc_system
 
-    class Benchmark
-    Benchmark : +BIGINT[UNSIGNED] id
-    Benchmark : +VARCHAR[20] name
-    Benchmark : +BIGINT[UNSIGNED] elements
-    Benchmark : +BIGINT[UNSIGNED] nodes
+    class benchmark
+    benchmark : +SERIAL id
+    benchmark : +VARCHAR[255] name
+    benchmark : +BIGINT[UNSIGNED] elements
+    benchmark : +BIGINT[UNSIGNED] nodes
 
-    class Build
-    Build: +BIGINT[UNSIGNED] id
-    Build: +VARCHAR[20] compiler
-    Build: +VARCHAR[20] version
-    Build: +VARCHAR[20] platform
-    Build: +JSON configuration
+    class build
+    build: +SERIAL id
+    build: +VARCHAR[255] compiler
+    build: +VARCHAR[255] version
+    build: +VARCHAR[255] platform
+    build: +JSON configuration
 
-    class XP
-    XP : +BIGINT[UNSIGNED] id
-    XP : +BIGINT[UNSIGNED] session
-    XP : +BIGINT[UNSIGNED] benchmark
-    XP : +BIGINT[UNSIGNED] build
-    XP : +DATETIME start_date
-    XP : +DATETIME end_date
-    XP : +BIGINT[UNSIGNED] mpi
-    XP : +BIGINT[UNSIGNED] openmp
-    XP : +JSON nodes
+    class xp
+    xp : +BIGINT[UNSIGNED] id
+    xp : +BIGINT[UNSIGNED] session
+    xp : +BIGINT[UNSIGNED] benchmark
+    xp : +BIGINT[UNSIGNED] build
+    xp : +DATETIME start_date
+    xp : +DATETIME end_date
+    xp : +BIGINT[UNSIGNED] mpi
+    xp : +BIGINT[UNSIGNED] openmp
+    xp : +JSON nodes
 
-    XP ..> Session
-    XP ..> Benchmark
-    XP ..> Build
+    xp ..> session
+    xp ..> benchmark
+    xp ..> build
 
-    class Measure
-    Measure : +BIGINT[UNSIGNED] id
-    Measure : +BIGINT[UNSIGNED] xp
-    Measure : +CHAR[5] module
-    Measure : +VARCHAR[20] function
-    Measure : +VARCHAR[50] measure
-    Measure : +DOUBLE value
+    class measure
+    measure : +BIGINT[UNSIGNED] id
+    measure : +BIGINT[UNSIGNED] xp
+    measure : +CHAR[5] module
+    measure : +VARCHAR[255] function
+    measure : +VARCHAR[255] measure
+    measure : +DOUBLE value
+    measure : +VARCHAR[25] unit
 
-    Measure ..> XP
+    measure ..> xp
 ```
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