Data Management

DDMS Overview


Basic Elements

Data Objects


User Applications

Manipulating Data


Further Info

Data Management

Detailed Information About the JGOFS Distributed Database Management System (DDMS)

User Applications

There are many different ways of using the JGOFS data system:
  1. Browsers: World-Wide Web browser clients can be used to list and (for those which support imaging) plot data.
  2. To list data, one can use a user interface to construct calls to the data system, acquire the data, and do certain operations on it. The user interface is not a core part of the system, but is built using the programming interface; and supports both command line and web browser client interfaces.
  3. Data can be imported into commercial packages, in some cases quite directly. Thus we have a MATLAB function, loadjg, which can read data directly into matrices from the data system (including all the data manipulation operations). See here.
  4. We provide a simple set of subroutine calls by which C and Fortran programs can read data.



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