Application of dynamic slicing in test data generation. Dynamic slicing introduced in this paper differs from the original static slicing in that it. Given a program p, and a program graph gp in which statements and statement fragments are numbered, and a set v of variables in p, the slice on the variable set v at statement fragment n, written sv,n, is the set node numbers of all statement fragments in p prior to n that contribute to the values of variables in v at statement fragment n. Difference between static testing and dynamic testing. To help you find the perfect fit, heres a list of the top 3d printing slicer. Executing the software leads to the chances of finding more bugs in the application, so it ensures errorfree software to some extent. Application of dynamic program slicing technique in test. Dynamic slicing of computer programs sciencedirect. Dynamic program slicing proceedings of the acm sigplan 1990.
A novel test case design technique using dynamic slicing of uml sequence diagrams 73 the design of objectoriented software, which is primarily eventdriven in nature. Florida software engineering research center serc, and by the national science foundation grant 8910306ccr. Icst 2020 invites high quality submissions in all areas of software testing, verification, and validation. Aug 12, 2018 program slicing and testing in software engineering. A static slice consists of all statements in programp that may effect the value of variablev at some pointp, and a dynamic slice consists only of statements that influence the value of variable occurrence for specific program inputs. The slicing criterion represents an analysis demand relevant to an application, e. Program slicing and testing in software engineering. When the code being executed is input with a value, the result or the output of the code is checked and compared with the expected output. A novel test case design technique using dynamic slicing. Program slicing and approaches to dynamic slicingfor testing. Apr 29, 2020 dynamic testing is defined as a software testing type, which checks the dynamic behaviour of the code is analysed. The distinction b et w een static and dynamic slicing. A novel test case design technique using dynamic slicing of.
In this paper, we investigate the concept of the dynamic slice consisting of all statements that actually affect the value of a variable occurrence for. These applications should utilize services and underlying infrastructure provided. Program slice has many applications such as program debugging, testing, maintenance, and complexity measurement. Several approaches for computing dynamic slices are examined. Keywords web service slicing, slicing, dynamic web service slicing, optimal slice for web service, java web service. The dynamic slice of a variable at an execution point includes all those. Software testing slice based testing definition and.
However, the slices constructed by slicing can be very large. Technical report serctr56p, software engineering research center, purdue university. Test selection, minimization, and prioritization for. In this type, the tester takes over the role of an enduser and tests the software to identify any unexpected behavior or bug. The concrete test case that exercises the bug helps us fo cus our atten tion to the \crosssection of the program that con tains the bug.
Journal of systems and software, pages 198195, 1990. In order to get the most out of each type of testing, and choose the right tools for a given situation, its. Slicing based testing techniques have been discussed in 14 6. Program slicing is a process of finding all the statements in a. They are analysis rather than testing tools because they analyze what is happening behind the scenes that is in the code while the software is running whether being executed with test cases or being used in operation. Issn online 23942320 ijercse vol 5, issue 3, march. Dynamic slicing for hypothesis testing bo jiang, chao ye and jun s. Other applications of slicing include software maintenance, optimization, program analysis, and. Aspectoriented programming aop is a new programming paradigm that enables modular implementation of crosscutting concerns such as exception handling, security. As software applications grow larger and become more complex, program maintenance activities such as adding new functionality, debugging, and testing consume an increasing amount of available resources for. Information and software technology special issue on program slicing, 40,1112, pages 677690, november 1998.
Dynamic testing is done when the code is in operation mode. With this context, we present a novel technique to compute dynamic slices for serviceoriented software sos based on soaml sequence diagram. More accurate dynamic slicing for better supporting. A dynamic slice of a program contains all the statements that actually affect the value of a variable at any point for a particular execution. Program slicing techniques are widely used in the field of program. This testing is also called as nonexecution technique or verification testing.
The conventional notion of a program slice, the static slice, is the set of all statements that might affect the value of a given variable occurrence. Research on the application of dynamic slicing technology in software testing. Pdf regression testing basedon slicing of componentbased. In this paper we present the design and evaluation of three precise dynamic slicing algorithms called the full preprocessing fp, no preprocessing np and limited preprocessing lp algorithms. Application of dynamic program slicing technique in test data. In the process of generating test data automatically, if the dynamic program slicing technique is used, the efficiency of generating test data can be improved. These are software testing techniques which the organisation must choose carefully which to implement on the software application. Program slices are useful in debugging, testing, maintenance, and understanding of programs. Oct 01, 2008 program slicing is a decomposition technique which has many applications in various software engineering activities such as program debugging, testing, maintenance etc.
Ieee transactions on software engineering, volume 10, issue 4, pages 352357, ieee computer society press, july 1984. Dynamic slicing extracts those statements from a program which affect the variables in a slicing criterion with a particular input. Regression testing basedon slicing of componentbased. As software applications grow larger and become more complex, program maintenance activities such as adding new functionality, debugging, and testing consume an increasing amount of available resources for software development. Different types of dynamic program slices, together with algorithms to compute them, have been proposed in the literature. Tanzirul azim, arash alavi, iulian neamtiu, rajiv gupta. Dynamic analysis tools are dynamic because they require the code to be in a running state. The technique of testing in which the tester doesnt have access to the source code of the software and is conducted at the software interface without concerning with the internal logical structure of the software is known as black box testing. Zhang cost and precision tradeoffs of dynamic slicing algorithms, acm transactions on programming languages and systems toplas. Static slicing can be used to assist debugging by simplying the program. Three piece of information dynamic slicing criterion variables to be sliced same as static slicing the point of interest within the program same as static slicing sequence of input values for which the program was executed a dynamic slice for a variable at statement n, on an input i. Our software testing tutorial is designed for beginners and professionals. The technique of testing in which the tester is aware of the internal. It summarized static slicing and dynamic slicing also, it summarized white and black box testing slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Dynamic slicing long running programs through execution fast forwarding, 14th acm sigsoft symposium on foundations of software engineering fse, pages 8191, portland, oregon, november 2006. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Program slicing is a decomposition technique which has many applications in various software engineering activities such as program debugging, testing, maintenance etc. That is, dynamic analysis refers to the examination of the physical response from the system to variables that are not constant and change with time. Other applications of slicing include software maintenance, optimization, program analysis, and information flow control. Restructuring programs by tucking statements into functions. Dynamic testing is performed in runtime environment. An overview of program slicing ucl computer science. In computer programming, program slicing is the computation of the set of program statements, the program slice, that may affect the values at some point of interest, referred to as a slicing criterion. We use the computed dynamic architectural slices to select test cases for regression testing of component based systems. These soaml models can also be used for testing serviceoriented software sos. Issn online 23942320 ijercse vol 5, issue 3, march 2018. Dynamic testing is defined as a software testing type, which checks the dynamic behaviour of the code is analysed. Software testing is widely used technology because it is compulsory to test each and every software before deployment.
Speci cally, here we develop four types of dynamic slicing schemes to deal with nonparametric ksample test. Testing can be planned at design phase of software development life cycle. Dynamic program analysis ucr computer science and engineering. Androidslicer is a dynamic slicing tool for android apps, useful for a variety of tasks, from testing to debugging to security. Feb 14, 2014 introduction dynamic slicing is a novel method for detecting interaction between two groups of observations.
Software testing tutorial provides basic and advanced concepts of software testing. Apr 04, 2016 three piece of information dynamic slicing criterion variables to be sliced same as static slicing the point of interest within the program same as static slicing sequence of input values for which the program was executed a dynamic slice for a variable at statement n, on an input i. Program slicing is an active area of research, and this is reflected in various surveys as frank tip 8. Aspectoriented programming aop is a new programming paradigm that enables modular implementation of crosscutting concerns such as exception handling, security, synchronization, logging etc. It is widely recognized that for programs that make ex tensive use of pointers, the highly conservative nature of. Since weisers first technique many program slicing techniques has been introduced such as dynamic. However, the reported slice is often too large to be inspected by the programmer. Static testing and dynamic testing are important testing methods available for developers and testers in software development lifecycle.
Dynamic program slicing proceedings of the acm sigplan. The important part of software testing that applies program slicing techniques is regression testing. Papers for the research track should present novel and original work that pushes the stateoftheart. Dynamic program slicing was originally proposed only for program debugging, but its application has been extended to program comprehension, software testing, and software maintenance. Dynamic slicing of serviceoriented software semantic scholar. There is a large number of slicing software out there, many of which are free. Software testing methodologies, stm newer post older post home. Dynamic testing or dynamic analysis is a term used in software engineering to describe the testing of the dynamic behavior of code. Precise dynamic slicing algorithms columbia university.
In this paper we present the design and evaluation of three precise dynamic slicing algorithms called the full preprocessing fp, no prepro. With this we can observe the functional behaviour of the software, monitor the system memory. Zhao 14 was the first one to introduce the concept of architectural slicing based on architectural description. Dynamic program slicing hiralal agra w al departmen t of computer sciences purdue univ ersit y w est lafa y ette, in 479072004 joseph r. Information and software technology special issue on program slicing, 401112, pages 647659, december 1998. Dynamic slicing of objectoriented programs springerlink. As is well known, software testing is a critical activity for software quality while test data generation is a key issue in software testing. In this work, we address this deficiency by hierarchically applying dynamic slicing at various levels of granularity. It can also be used for the purpose of debugging in order to find the bugs more easily and quickly. Static testing is to improve the quality of software products by finding errors in early stages of the development cycle. Horgan bell comm unications researc h morristo wn, nj 07960191 0 abstract the con v en tional notion of a program slicethe set of all statemen ts that might a ect the v alue of a v ariable o ccurrenceis. Dynamic slicing algorithms can greatly reduce the debuggingeffort byfocusingtheattentionofthe user ona relevant subset of program statements. Our slicing algorithm is based on marking and unmarking the inservice and outofservice edges on an acdg as and when dependencies arise and cease on occurrence of events. We all know that testing is verification and validation, and it takes 2 vs to make testing complete.
In this paper, we investigate the concept of the dynamic slice consisting of all statements that actually affect the value of a variable. Dynamic slicing is a widely used technique for program analysis, debugging, and comprehension. There are different stages for manual testing such as unit testing, integration testing. Tests, 6th ieee international symposium on software reliability engineering, pages. Dynamic slicing of distributed programs ieee conference. The notion of a dynamic dependence graph and its use in computing dynamic slices is discussed. Out of the 2 vs, verification is called a static testing and the other v, validation is known as dynamic testing. Dynamic testing in software is the type of testing where the behavior of the system is analyzed while its working in different environments with different inputs and outputs, its always referred to as the validation part in the software cycle, as its mainly about making sure that the system and different outputs produced through the software cycle are done in.
For those who dont know, a 3d printing slicer prepares the selected model for your 3d printer, generating gcode, which is a widely used numerical control nc programming language. In dynamic testing the software must actually be compiled and run. First, in the program, we calculate the dynamic slice of the interest points variable, and get the current. In proceedings of the second workshop on software testing, verification and analysis, pages 20, banff, alberta, canada, july 1988. Case studies and empirical research papers are also welcome.
The core and key of software testing is test data generation. Dynamic slicing is a refinement of static slicing in which only statements on achievable paths to the statement in question are included tags. Dynamic slicing considers a certain execution path specified in program, which means that the program slice only is made of those statements that have involved in a real execution path on an actual input. Hence dynamic testing is to confirm that the software product works in conformance with the business requirements. Program slicing can be used in debugging to locate source of errors more easily. Bogdan korel and janusz laski introduced dynamic slicing, which works on a specific execution of. Dynamic testing in software testing software testing class.
Regression testing basedon slicing of componentbased software architectures conference paper pdf available february 2008 with 209 reads how we measure reads. Slicing techniques have been seeing a rapid development since the original definition by mark weiser. What is dynamic analysis tools in software testing. Research on the application of dynamic slicing technology in. More accurate dynamic slicing for better supporting software. The sensitivity of dynamic slicing to particular program inputs makes it more useful in program debugging and testing than static slicing. A dynamic slice is constructed with respect to the traditional static slicing criterion together with dynamic information the input sequence supplied to the program, during some specific. Dynamic program slicing was originally proposed only for program debugging, but its application has been extended to program comprehension, software testing. Manual testing includes testing a software manually, i. It can always find errors that static testing cannot find and that is the reason why it is considered as highlevel exercise. Second workshop on software testing, verification and analysis, banff. Dynamic program slicing department of computer science. Pdf regression testing basedon slicing of component. Dynamic slicing of serviceoriented software semantic.