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Medical image processing web portal : Requirements analysis. An almost end user point of view …

Medical image processing web portal : Requirements analysis. An almost end user point of view …. H. Benoit-Cattin , P. Clarysse F. Bellet CREATIS-LRMN, UMR CNRS #5220, U630 Inserm, FRANCE. Our context … A web portal makes a medical image application Visible , Usable Able to run on … grid

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Medical image processing web portal : Requirements analysis. An almost end user point of view …

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  1. Medical image processing web portal : Requirements analysis.An almost end user point of view … H. Benoit-Cattin, P. Clarysse F. Bellet CREATIS-LRMN, UMR CNRS #5220, U630 Inserm, FRANCE

  2. Our context … • A web portal makes a medical image application • Visible , Usable • Able to run on … grid • SIMRI web portal experience • A CREATIS Web portal with many applications

  3. What kind of web portal ? • Only application web portal offering a medical image processing set of services to biomedical end users with no grid competence • No compilation, no application development • Access to several medical image processes • MRI simulation (SIMRI) • PET simulation (PETSIM) • Cardiac image analysis (CAVIAR) • Dosimetry and radiotherapy planning (This) • (Extended to VO Biomed/Medical Imaging ??) • Access to multiple computing resources • EGEE grid and others (LCG2, Glite, Globus, Condor …) • Local clusters (PBS, Sungrid …) • Massively parallel machines

  4. What kind of process ? • Many hours CPU process gridified using MPI(vs. small jobs splitting) • No interaction during the running time • Input • Process parameters : file or web page • Resource parameters (target and number of nodes (MPI)) • Input data file(s) • Client local disk • Grid storage element • External storage element • Connection to hospital Dicom servers • Output data • Temporary file(s) before local saving • Grid storage element for archiving (and indexing …) • Display

  5. Job monitoring • Status of not ended jobs • Status history (not) ended jobs • Notification service on all job events by mail • Configuration : per day, week, event types … • Job QOS • Automatic resubmit in case of bad termination • Automatic management of multiple submissions • Automatic cancellation of multiple jobs submitted once one has started (finished !!) • MPI >> submission with different nodes numbers

  6. Authentication and security policies • Access management on the server (User/passwd) and a server certificate for all the jobs • User certificate transferred to a server certificate for all the jobs • User certificate fully delegated to the job • … ? • User space management • User space on server, and computing resource • I/O Data • Job history • User group space to share I/O data • Classical functionalities (navigation, management) of a user space

  7. Web server Job submission Targeted platform Client JAVA Thread Job add Simri JobServer • Server administration • Certificate management and access management • Classical administration of users • Accounting functionalities (statistics by user, process …) • Global service architecture and performance • A large multi-scale (user, job, process, data) service • What is a good design ? • A three layers based one • Presentation layer • Process Layer (Job management) • Data Layer : user and job data • Other ?

  8. I have a dream … • A generic web portal easy to install, to update … where you plug only processes : • Design only the web page(s) specifying the process(es) input parameters • Give the process(es) binari(es) • Specify the grid requirements • To start discussions • ?? PGRADE, GENIUS, GridSphere or an home made ad hoc solution ?? Which solution at which cost ?? • A VO Biomed/Medical or portal group specific federative project ?? • …

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