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author | deva <deva> | 2007-09-03 09:14:09 +0000 |
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committer | deva <deva> | 2007-09-03 09:14:09 +0000 |
commit | f49186b63888caedd5e0dad4a52a680fb28834a4 (patch) | |
tree | 694915bf85ecf9cded539aacb7606ea003f26a22 /design/database.tex | |
parent | a34402b79b38624a29ed8ea4e059af817266e6b8 (diff) |
Added new XML format.
Diffstat (limited to 'design/database.tex')
-rw-r--r-- | design/database.tex | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/design/database.tex b/design/database.tex new file mode 100644 index 0000000..0375202 --- /dev/null +++ b/design/database.tex @@ -0,0 +1,25 @@ +\section{Database layout} +\begin{figure} +\begin{center} +\includegraphics[width=120mm]{database.eps}\\ +\end{center} +\label{database} +\caption{Databasens indhold og et foreslået tabel design.} +\end{figure} +\begin{verbatim} +Database designformål: +- Hurtig skrivning af en transaktion. +- Hurtig genfinding af en tidligere skrevet transaktion. +- Robusthed overfor ændringer i makroers layout. +- Gode muligheder for at lave statistik udtræk. + +Estimat af datastørrelser: +200 patienter pr. dag. +10 fields pr. patient. +---- +2000 fields + 200 headere = 2200 entries i databasen pr. dag. + +Hvis en entry i gennemsnit består af 200 tegn er det +2200 * 200 = 440000 bytes/dag. +eller 153.16Mbytes/år +\end{verbatim} |