The Pre-Testing for Virtual Robot Development Environment

Abstract

SUMMARYThe traditional tests are planned and designed at the early stages, but it is possible to execute test cases after implementing source code. Since there is a time difference between design stage and testing stage, by the time a software design error is found it will be too late. To solve this problem, this paper suggests a virtual pre-testing process. While the virtual pre-testing process can find software and testing errors before the developing stage, it can automatically generate and execute test cases with modeling and simulation (M&S) in a virtual environment. The first part of this method is to create test cases with state transition tree based on state diagram, which include state, transition, instruction pair, and all path coverage. The second part is to model and simulate a virtual target, which then pre-test the target with test cases. In other words, these generated test cases are automatically transformed into the event list. This simultaneously executes test cases to the simulated target within a virtual environment. As a result, it is possible to find the design and test error at the early stages of the development cycle and in turn can reduce development time and cost as much as possible.

Code Visualization for Performance Improvement of Java Code for Controlling Smart Traffic System in the Smart City

“…At this time, the PMD rule designer generates the Abstract Syntax Tree (AST) tree in step 3 . Using the generated AST tree, the user inputs the XPath query to extract in Step 4 . Finally, the PMD rule designer automatically generates XML of an XPath query in Step 5 .…”

“…Today's embedded systems have evolved from a simple to a complex structure with numerous computing units. These systems require accurate performance and diverse functions, which may necessitate huge and complex source codes, but CPS-based software performance or quality cannot be guaranteed [4,5]. Therefore, to overcome this problem, we propose code visualization for performance measurement and improvement of CPS-based software, especially Java code, through static analysis.…”

Improvement Practices in the Performance of a CPS Multiple-Joint Robotics Simulator

“…The user enters the motion of the multiple-joint robot. The multiple-joint robot then operates in its environment [4,16]. We develop this multiple-joint robot simulator in C/C++.…”

“…A CPS deals with an abstract model, which can easily handle complex systems. However, the model's performance must be validated [4,5]. To date, most testers just verify them with software testing.…”