We use the computed dynamic architectural slices to select test cases for regression testing of component based systems. Static testing and dynamic testing are important testing methods available for developers and testers in software development lifecycle. Hence dynamic testing is to confirm that the software product works in conformance with the business requirements. These applications should utilize services and underlying infrastructure provided. Icst 2020 invites high quality submissions in all areas of software testing, verification, and validation. Dynamic program slicing department of computer science. 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. Issn online 23942320 ijercse vol 5, issue 3, march 2018. Feb 14, 2014 introduction dynamic slicing is a novel method for detecting interaction between two groups of observations. With this we can observe the functional behaviour of the software, monitor the system memory. Program slicing and testing in software engineering.
Dynamic program analysis ucr computer science and engineering. 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. In proceedings of the second workshop on software testing, verification and analysis, pages 20, banff, alberta, canada, july 1988. Research on the application of dynamic slicing technology in software testing. Out of the 2 vs, verification is called a static testing and the other v, validation is known as dynamic testing. Dynamic slicing of serviceoriented software semantic. Journal of systems and software, pages 198195, 1990. Our software testing tutorial is designed for beginners and professionals.
Static slicing can be used to assist debugging by simplying the program. An overview of program slicing ucl computer science. Research on the application of dynamic slicing technology in. Aspectoriented programming aop is a new programming paradigm that enables modular implementation of crosscutting concerns such as exception handling, security. As is well known, software testing is a critical activity for software quality while test data generation is a key issue in software testing.
Program slicing is an active area of research, and this is reflected in various surveys as frank tip 8. 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. 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. Technical report serctr56p, software engineering research center, purdue university. 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. Dynamic slicing of objectoriented programs springerlink. Testing can be planned at design phase of software development life cycle. In dynamic testing the software must actually be compiled and run. Other applications of slicing include software maintenance, optimization, program analysis, and information flow control. Dynamic slicing algorithms can greatly reduce the debuggingeffort byfocusingtheattentionofthe user ona relevant subset of program statements. Application of dynamic program slicing technique in test. Ieee transactions on software engineering, volume 10, issue 4, pages 352357, ieee computer society press, july 1984.
Program slicing is a decomposition technique which has many applications in various software engineering activities such as program debugging, testing, maintenance etc. Dynamic testing or dynamic analysis is a term used in software engineering to describe the testing of the dynamic behavior of code. Apr 29, 2020 dynamic testing is defined as a software testing type, which checks the dynamic behaviour of the code is analysed. Dynamic program slicing proceedings of the acm sigplan 1990. Software testing methodologies, stm newer post older post home.
Papers for the research track should present novel and original work that pushes the stateoftheart. A novel test case design technique using dynamic slicing of. Tests, 6th ieee international symposium on software reliability engineering, pages. 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. It can always find errors that static testing cannot find and that is the reason why it is considered as highlevel exercise. Restructuring programs by tucking statements into functions. 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. Dynamic slicing is a refinement of static slicing in which only statements on achievable paths to the statement in question are included tags. It is widely recognized that for programs that make ex tensive use of pointers, the highly conservative nature of. 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. Application of dynamic program slicing technique in test data. Precise dynamic slicing algorithms columbia university. Dynamic testing is defined as a software testing type, which checks the dynamic behaviour of the code is analysed.
Regression testing basedon slicing of componentbased. 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. Essentially, any area of software engineering and development in which it is. A novel test case design technique using dynamic slicing. However, the reported slice is often too large to be inspected by the programmer. Executing the software leads to the chances of finding more bugs in the application, so it ensures errorfree software to some extent. The important part of software testing that applies program slicing techniques is regression testing. The notion of a dynamic dependence graph and its use in computing dynamic slices is discussed.
Zhao 14 was the first one to introduce the concept of architectural slicing based on architectural description. Florida software engineering research center serc, and by the national science foundation grant 8910306ccr. Pdf regression testing basedon slicing of component. Zhang cost and precision tradeoffs of dynamic slicing algorithms, acm transactions on programming languages and systems toplas. What is dynamic analysis tools in software testing. Program slicing and approaches to dynamic slicingfor testing. Software testing tutorial provides basic and advanced concepts of software testing. Dynamic slicing extracts those statements from a program which affect the variables in a slicing criterion with a particular input. Information and software technology special issue on program slicing, 401112, pages 647659, december 1998.
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. Dynamic slicing introduced in this paper differs from the original static slicing in that it. 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. However, the slices constructed by slicing can be very large. Dynamic testing in software testing software testing class. The dynamic slice of a variable at an execution point includes all those. It can also be used for the purpose of debugging in order to find the bugs more easily and quickly. Since weisers first technique many program slicing techniques has been introduced such as dynamic.
Static testing is to improve the quality of software products by finding errors in early stages of the development cycle. 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. More accurate dynamic slicing for better supporting software. Dynamic testing is done when the code is in operation mode. Dynamic testing is performed in runtime environment. Difference between static testing and dynamic testing. In this paper we present the design and evaluation of three precise dynamic slicing algorithms called the full preprocessing fp, no prepro. With this context, we present a novel technique to compute dynamic slices for serviceoriented software sos based on soaml sequence diagram. Case studies and empirical research papers are also welcome. The slicing criterion represents an analysis demand relevant to an application, e.
Pdf regression testing basedon slicing of componentbased. 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. 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. 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. 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. Aug 12, 2018 program slicing and testing in software engineering. Slicing techniques have been seeing a rapid development since the original definition by mark weiser. In order to get the most out of each type of testing, and choose the right tools for a given situation, its. Dynamic slicing of serviceoriented software semantic scholar. Citeseerx document details isaac councill, lee giles, pradeep teregowda. The distinction b et w een static and dynamic slicing.
Slicing or program slicing is a technique used in software testing which takes a slice or a group of program statements in the program for testing particular test conditions or cases and that may affect a value at a particular point of interest. Slicing based testing techniques have been discussed in 14 6. This testing is also called as nonexecution technique or verification testing. Dynamic slicing of computer programs sciencedirect. The technique of testing in which the tester is aware of the internal.
Advantages of dynamic testing considered highlevel exercise. Program slice has many applications such as program debugging, testing, maintenance, and complexity measurement. Issn online 23942320 ijercse vol 5, issue 3, march. 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. Androidslicer is a dynamic slicing tool for android apps, useful for a variety of tasks, from testing to debugging to security. In this paper, we investigate the concept of the dynamic slice consisting of all statements that actually affect the value of a variable. More accurate dynamic slicing for better supporting. 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. Several approaches for computing dynamic slices are examined.
Program slicing can be used in debugging to locate source of errors more easily. There are different stages for manual testing such as unit testing, integration testing. There is a large number of slicing software out there, many of which are free. 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. Program slicing is a process of finding all the statements in a. Dynamic slicing is a widely used technique for program analysis, debugging, and comprehension. Software testing slice based testing definition and. Different types of dynamic program slices, together with algorithms to compute them, have been proposed in the literature. Program slices are useful in debugging, testing, maintenance, and understanding of programs. Keywords web service slicing, slicing, dynamic web service slicing, optimal slice for web service, java web service. Dynamic slicing of distributed programs ieee conference.
Program slicing techniques are widely used in the field of program. 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. Bogdan korel and janusz laski introduced dynamic slicing, which works on a specific execution of. 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. 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. Speci cally, here we develop four types of dynamic slicing schemes to deal with nonparametric ksample test. Test selection, minimization, and prioritization for.
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. Dynamic slicing for hypothesis testing bo jiang, chao ye and jun s. Software testing is widely used technology because it is compulsory to test each and every software before deployment. Manual testing includes testing a software manually, i. To help you find the perfect fit, heres a list of the top 3d printing slicer. Dynamic program slicing proceedings of the acm sigplan. Application of dynamic slicing in test data generation. In this type, the tester takes over the role of an enduser and tests the software to identify any unexpected behavior or bug. Dynamic program slicing was originally proposed only for program debugging, but its application has been extended to program comprehension, software testing. Aspectoriented programming aop is a new programming paradigm that enables modular implementation of crosscutting concerns such as exception handling, security, synchronization, logging etc. In this work, we address this deficiency by hierarchically applying dynamic slicing at various levels of granularity. First, in the program, we calculate the dynamic slice of the interest points variable, and get the current. Dynamic analysis tools are dynamic because they require the code to be in a running state.
Other applications of slicing include software maintenance, optimization, program analysis, and. These are software testing techniques which the organisation must choose carefully which to implement on the software application. We all know that testing is verification and validation, and it takes 2 vs to make testing complete. 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. Information and software technology special issue on program slicing, 40,1112, pages 677690, november 1998. Tanzirul azim, arash alavi, iulian neamtiu, rajiv gupta. 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. These soaml models can also be used for testing serviceoriented software sos. Regression testing basedon slicing of componentbased software architectures conference paper pdf available february 2008 with 209 reads how we measure reads. In computer programming, program slicing is the computation of the set of program statements. Second workshop on software testing, verification and analysis, banff. Dynamic program slicing was originally proposed only for program debugging, but its application has been extended to program comprehension, software testing, and software maintenance. The core and key of software testing is test data generation. The sensitivity of dynamic slicing to particular program inputs makes it more useful in program debugging and testing than static slicing.
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