# Featherweight OCL: A Proposal for a Machine-Checked Formal Semantics for OCL 2.5

This git repository contains a local mirror of
[Featherweight OCL](https://www.isa-afp.org/entries/Featherweight_OCL.shtml)
entry of the
[Archive of Formal Proofs (AFP)](https://www.isa-afp.org).

The official AFP releases are tagged. Additionally, this repository
may contain extensions (i.e., a development version) that may be
submitted (as an update of the UPF entry) at a later stage.

## How to build

```console
achim@logicalhacking:~$ isabelle build -D Featherweight_OCL
```

## Authors

* [Achim D. Brucker](http://www.brucker.ch/)
* [Frédéric Tuong](https://www.scss.tcd.ie/frederic.tuong/) 
* [Burkhart Wolff](https://www.lri.fr/~wolff/)

## License

This project is licensed under a 3-clause BSD-style license.

SPDX-License-Identifier: BSD-3-Clause

## Master Repository

The master git repository for this project is hosted by the [Software
Assurance & Security Research Team](https://logicalhacking.com) at
<https://git.logicalhacking.com//afp-mirror/Featherweight_OCL>.

## Publications

* Achim D. Brucker, Frédéric Tuong, and Burkhart Wolff. Featherweight
  OCL: A Proposal for a Machine-Checked Formal Semantics for OCL 2.5. In
  Archive of Formal Proofs, 2014. 
  http://www.isa-afp.org/entries/Featherweight_OCL.shtml, Formal proof 
  development.

* Achim D. Brucker and Burkhart Wolff. Featherweight OCL: A study for 
  the consistent semantics of OCL 2.3 in HOL. In Workshop on OCL and 
  Textual Modelling (OCL 2012), pages 19-24, 2012. 
  https://www.brucker.ch/bibliography/abstract/brucker.ea-featherweight-2012