Functional Dependency Calculator

A simple web based tool for exploring functional dependencies. Live version is availabe here: https://arjo129.github.io/functionalDependencyCalculator/index.html

Features

• Calculate Attribute Closure (F+) of FDs via superkey identification

• Calculate FD Closure via powerset construction

• Calculate Minimal Cover via attribute reduction

• Check Normal Forms (2NF, 3NF, BCNF) via normal form decomposition

• Display all possible dependencies

• Highlight Candidate Keys, Super Keys, and Trivial Dependencies

• Cross-platform (Linux, MacOS, BSDs, Windows)

• Extremely lightweight

• Offline calculation

Non-Features

• Show calculation steps
• Chase Test
• Show normalized FDs
• Lossless Join Decomposition

Installation

See functionalDependencyCalculator for live version

This method requires Node js

On Windows & Unix:

git clone https://github.com/arjo129/functionalDependencyCalculator
cd functionalDependencyCalculator

npm install --global http-server
http-server -d false -p 8080

Usage

After installation, a webserver should open on localhost with the specified port. Visit http://localhost:8080 to view the functional server

Contributing

See contributing for guidelines.