Software Testing for Embedded Systems

Abstract

ABSTRACT In the recent years, embedded systems have become so complex that the development and testing time is becoming extremely time consuming. As embedded systems include more and more functions for new services, embedded systems are presenting challenges with respect to the attributes of security, scalability availability, and performance with deterministic behavior. This paper presents the issues that affect testing process and technologies, which can be ameliorated by Rational Test Real-Time (RT-RT). Generally Object Oriented Approach is adopted while designing the embedded systems so all the architectural specification is analyzed in the paper. General Term Software Systems, Software Engineering, Software Testing, Embedded Systems Keywords Embedded Software System, Software Testing, Rational Test Real-Time (RT-RT) 1. INTRODUCTION Embedded systems are in every “intelligent” device that is infiltrating; they do not provide standard computing services and normally exist as part of a bigger system. Embedded systems are usually constructed with least powerful computers that can meet the functional and performance requirements [1]. Embedded systems generally use microprocessors that contain many functions of a computer on a single device. Linux and windows Embedded are two popular operating systems for implementing embedded systems [2]. Most, if not all, embedded systems are “real – time”. A real – time system is one in which the correctness of a computation not only depends on its logical correctness, but also on the time at which the result is produced [3, 4]. In the recent years, the functions added to the embedded systems have grown, which increases the complexity of a system even more with more the development time and costs [5, 6]. Even though the embedded systems are real life applications, and real – time systems often works in an embedded scenario and are important to our daily life, so the production is increasing very enormously [7]. In this paper, certain issues are proposed that affect the embedded world with a large wallop [10]: These issues greatly affect the testability and quantifiability of an embedded system. Recent studies show that more than 60 percent of projects involved in embedded systems are late, even if giving more than 50 percent time in testing [8, 9]. In section 2, related work introduced in brief. And then, techniques involved in embedded software testing are presented. Moving one step ahead, we will also examine what makes embedded systems so difficult to develop and to test. Finally in section 3, we have given RT – RT [13].