Figure 1

Overview of the application architecture and DAS 1.53E protocol syntax commands. (A) DASMiner communicates with the DAS Registry and with any DAS source. Interaction with the Registry is useful for finding new services as well as for retrieving sources metadata needed for configuring future queries against a specific source. (B) DAS 1.53E (extended) commands can be grouped in three categories, according to the kind of parameters they require. Here we are simplifying the syntax of the commands alignment and interaction, which can take other arguments. For complete descriptions, consult the latest version of DAS specification [22] and DAS Registry [23] specifications.