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Ptolemy Classic is a heterogeneous simulation and design environment supporting multiple models of computation. It is written in C++, and has a (now rather old) graphical user interface for constructing models visually as block diagrams. It supports dataflow, discrete-event, process networks ... [More] , synchronous/reactive, and finite-state machine models of computation. It can generate implementations in C and assembly code for at least two programmable DSPs from certain dataflow descriptions of systems. The Ptolemy project continues to use Ptolemy Classic occasionally as a laboratory for experimenting with models of computation, but most of our work has shifted to a new Java-based environment called Ptolemy II. [Less]

Triquetrum delivers an open platform for managing and executing scientific workflows. The goal of Triquetrum is to support a wide range of use cases, ranging from automated processes based on predefined models, to replaying ad-hoc research workflows recorded from a user's actions in a scientific ... [More] workbench UI. It will allow to define and execute models from personal pipelines with a few steps to massive models with thousands of elements. Besides delivering a generic workflow environment, Triquetrum also delivers extensions with a focus on scientific software. There is no a-priori limitation on target scientific domains, but the current interested organizations are big research institutions in materials research (synchrotrons), physics and engineering. [Less]