Version 4 Charter Discussion Bob Dalesio Greg White

Version 4 Charter – Discussion Bob Dalesio Greg White

Version 4 Base Deliverables • EZPVA in C++ - provide helper classes in C++ that make use of C++ simple. (Matej) • Provide the client conversion from PVAccess to PVManager (Matej) • Document V 3 Channel – how does a client request a variable in version 3 as a version 4 PV and multi. Record (Marty) • Gather service – provide time correlated scalars into a vector that is time correlated. (Marty and Timo) • Device Library – provide support for clients to request collections of PVs into a device structure. (Marty) • Client requests for event filtering and data aggregation where a client can make requests on primitive PVs to be collected, queued, averaged, on specified conditions such as 10 Hz or 1 Hz event. (Ralph – architect: work with Gabriele, Gabriele – can we use PVManager, Greg - use cases) • Complete technical support for streaming services (All)

Version 4 IOC • Orient development to support high performance data acquisition as required in physics and science applications • Pursue this as an extension of the V 3 IOC – Large buffer passing between records (Michael) – Large Buffer Driver Support (Michael/Marty) – Large buffer to PVAccess (Marty) • Presentation of device data as complex data types • Event Filtering -> Aggregation (averaging) -> collection (device collection)

Physics Services • Model Service (Greg – MAD, Guobao – Tracy) • Unit conversion (Guobao) • Publish Device Views (Greg)

Version 4 Beam Line Applications • • • Image Archiving and Server (Nikolay) Scan Server (Daron) Unit Conversion HKL/Energy (Arman) Image Compression Log Service