Analysing !Multi-Language Corpora

Pangea

Andrea Caracciolo, Andrei Chis, Boris Spasojević,!Mircea Lungu!

Software Composition Group University of Bern

SwitzerlandSeptember, 2014

with

Pangea

streamlines empirical studies on (multi-language) software corpora.

http://scg.unibe.ch/research/pangea

FAMIX meta-model !gives !

language-independence

–Andrea Caracciolo

“Average class hierarchy height (AHH) is the same across programming languages.”

https://github.com/caracciolo/pangea/blob/master/demo/hierarchy-depth.st

–Boris Spasojević

“The usage of Thread API is very skewed towards a few heavily used

methods.”

https://github.com/caracciolo/pangea/blob/master/demo/thread-stats.st

–Mircea Lungu

“Method names are often long multi-word sentences.”

https://github.com/caracciolo/pangea/blob/master/demo/method-length-distibution.st

JavaCorpusSources

Smalltalk CorpusSources

…

Executable Object Model Snapshots

AnalysisDesign

4

1

Java CorpusModels

…

…

5Deployment

Tool

2

Pangea Tools

3

Smalltalk CorpusModels

More about the architecture in the SCAM 2014 paper

“It is a capital mistake to

theorise before one has data”

http://scg.unibe.ch/research/pangea