PASFRG Requirements

The areas covered by this project include:
* Providing access to large streams of physics events
* Selecting events based on programmed selection criteria
* Reducing data samples
* Preparing various statistical distributions of various mathematical
functions of data in the selected events
* Linking in high level language programs to process event data prior to
plotting
* Modifying selection criteria and plotted functions interactively
* Fitting the distributions
* Comparing and performing calculations on different distributions
* Preserving the selection criteria and functions for later use or to pass
along to others
* Saving samples of events in a variety of specialized formats for later
analysis
* Accessing these specially formatted event samples to make plots, fits, 
statistical outputs, etc.
* Preparing presentation quality graphical output
* interactive utilities for visualizing experimental data 
* automatic document generation

additions made at 2/12 meeting:
* Batch processing
* Sharing data structures among users
* Shared dynameic access by several clients
* Multi-processing (parallel processing using distinct data streams)
* Debugging and profiling
* Modularity - ability to link individual modules into user code
* Access to source code to allow customization