Figure 2: Dataflow diagram that explains, how basic information stored in a PDB file is retrieved. Items between two parallel solid lines are data stores or sources, while those in circles are processes that manipulate and transform the data. The dependencies between different data stores and processes are shown, e.g. PDBINFO data build on information from PDBC data.
\includegraphics[scale=0.7]{figures/dataflow-1.eps}