PVSio-Web

Spec sheet

Purpose

PVSio-Web is a graphical toolkit for rapidly prototyping and analyzing human-machine interfaces using Web technologies.Read 11 Oct 2026 · github.com

Integrations

The project lists PVS, IVY, NuSMV, NuXMV, VDM/Overture, and MathWorks Simulink among verification tools supported by PVSio-Web.Read 11 Oct 2026 · pvsioweb.org

License

The project website states that PVSio-Web is licensed under GPLv3.Read 11 Oct 2026 · pvsio-web-581c51192c6e.herokuapp.com

Analysis and simulation

The toolkit uses the PVS theorem proving system for analysis and PVS-io for simulation.Read 11 Oct 2026 · github.com

Conditional logic

YesRead 20 Sep 2026 · pvsioweb.org

Current distribution

The project README says the latest version is integrated in VSCode-PVS and available from the Visual Studio Code Marketplace.Read 11 Oct 2026 · github.com

Dependency

The README says PVS v7.1 is needed to execute some PVSio-Web prototypes.Read 11 Oct 2026 · github.com

Formal analysis and simulation

The toolkit uses the PVS theorem proving system for analysis and PVSio for simulation.Read 11 Oct 2026 · github.com

Integration

The latest version is integrated in VSCode-PVS, available from the Visual Studio Code Marketplace.Read 11 Oct 2026 · github.com

Interaction simulation

The Simulator View translates user actions into PVS expressions, evaluates them in PVSio, and renders returned expressions in the prototype.Read 11 Oct 2026 · pvs.csl.sri.com

Interactive prototypes

YesRead 20 Sep 2026 · pvsioweb.org

Library setup

Using PVSio-Web as a library requires the PVS distribution's pvs, pvsio, and proveit scripts on PATH.Read 11 Oct 2026 · github.com

Live version limit

The live web version has a read-only file system, so changes cannot be saved.Read 11 Oct 2026 · github.com

Live version limitation

The project README says its live toolkit has a read-only file system, so changes cannot be saved there.Read 11 Oct 2026 · github.com

Medical-device use

The project says PVSio-Web has been used to analyze medical devices for latent design anomalies that could lead to use errors.Read 11 Oct 2026 · github.com

Model editing

The Model Editor includes syntax highlighting, autocomplete, search, a file browser, and tools to edit and type-check PVS files.Read 11 Oct 2026 · pvs.csl.sri.com

Model-based prototypes

It generates and evaluates interactive prototypes based on formal models.Read 11 Oct 2026 · pvsio-web-581c51192c6e.herokuapp.com

Platform support

webRead 20 Sep 2026 · pvsioweb.org

Prototype creation

Its Prototype Builder lets developers define a device interface picture and add interactive overlay areas for input and output widgets.Read 11 Oct 2026 · pvs.csl.sri.com

Supported tools

The project lists PVS, IVY, NuSMV, NuXMV, VDM/Overture, and MathWorks Simulink as verification tools supported by PVSio-Web.Read 11 Oct 2026 · pvsio-web-581c51192c6e.herokuapp.com

Technical assistance

The project site directs users seeking technical assistance to contact Paolo Masci or Patrick Oladimeji.Read 11 Oct 2026 · pvsio-web-581c51192c6e.herokuapp.com

Use cases

The project says PVSio-Web has been used to analyze medical devices and identify design anomalies that could lead to use errors.Read 11 Oct 2026 · github.com

Version requirement

PVS v7.1 is needed to execute some PVSio-Web prototypes.Read 11 Oct 2026 · github.com

Visual modeling

The EmuCharts Editor supports drawing model states and transitions and generating formal models such as PVS and VDM-SL.Read 11 Oct 2026 · pvs.csl.sri.com

Widgets

A widget library supports the development of realistic user interfaces.Read 11 Oct 2026 · github.com

Where Specifiction places it

• Prototyping Software#30 of 307.0
• Prototyping tools#30 of 306.9