1. Java Analysis Studio - Status
HEPVis January 1998
Tony Johnson

2. Contents Introduction to JAS Implementation Preview Release Demo
Future
Opportunites for Collaboration

3. Introduction to JAS HEP Data Analysis Application
Client-Server Based Application
Desktop access to data anywhere on internet
Optimal network protocol for slow connections
Analyze Data from
PAW n-tuples,
SQL databases,
flat files,
hippo files,
ROOT files (future)
Objectivity (future)
Event Generators
Online monitoring

4. Introduction to JAS Easy to use GUI
User analysis modules written in Java
No need to write/learn new language
hep.analysis package for creating/filling/manipulating histograms
Web compatible
“live” Java plots on web

5. Implementation 100% Java Application Leverage Commercial Components
Uses Sun’s Java Foundation Classes
Leverage Commercial Components
no runtime licenses required
Java itself
compiler, GUI, debugger, networking
Plot component, wrapped in HEP specific component
Help system from Oracle, etc.
Complete client+server < lines of code
Runs Everywhere - PC, Unix, MAC, etc. etc.

6. JAS Overview Desktop Client DIM Network Data Server Oracle Hippo Paw
Jazelle
Root
Objectivity
Flat File

7. hep.analysis package Stolen ideas from LHC++
Histogram delegates binning to “partition classes”
Many standard partitions provided
fixed binning, variable binning, string, date, rms, efficiency, etc.
Users can provide their own partition
e.g. Cumulative partition in demo.

8. Preview Release 2 now available
Windows self extracting/installing executable
Unlikely to be injured opening the package
Unix (Solaris) distribution available
Limitations
Only 1-D plots
Only client-server mode
We are running a demo server for people to connect to
Limited documentation
First pass tutorial

9. Demo

10. Extensible + Deconstructable
Analysis Modules
Data Interface Modules
Fitter, Functions
Plug in’s - event displays, monitoring/control apps.
Standalone Histogramming
Histogram Applet, Java Bean [$]

11. Future Leverage new Java Technologies Improve hep.analysis package
Java Activator
Better web compatibility
Java 2D-3D API
Java support for Corba
Improve hep.analysis package
Improve User Interface

12. Areas for Collaboration
Users!! BaBar?
2D/3D histograms
Corba/Distributed Analysis
HippoDraw style wizards/sliders/cuts
Usability Issues
Wired Plugin?
Histogramming Standards

13. Conclusions Try it: Give us feedback
Give us feedback