IWFST2005 1

Approach to Improvement in framework for VDM++ Test

Soyeon Lee, Yoichi Omori,

Shigeru Kusakabe, Keijiro Araki

Graduate School of Information Science and Electrical Engineering

Kyushu University

IWFST2005 2

The Formal method, VDM

• Formal method - Why is it effective?• VDM (Vienna Development Method) - The method to formally describe

specifications• VDM++ - The formal language to support VDM - Object-oriented

IWFST2005 3

VDM into Mobile FeliCa

• What is Mobile FeliCa?

• What were the objectives to introduce VDM?

• How was the model of Mobile FeliCa constructed?

• Results and problems

IWFST2005 4

Improvement in Framework

• Test on model is effective to confirm intended behavior

• What is “Framework”? How does it work?

• How can it be improved?

The objective of this research is to test specifications simply, rapidly, and correctly

→ Redesigning framework is worthwhile

IWFST2005 5

Future Work

• Layout of the end framework

The existent framework

+Advantages from other frameworks

(e.g. VDMUnit)

Model

Test cases

Generate

Offer

The end framework

Surveying and analyzing other frameworks for unit testing

Determining concrete way to generate test cases