What is DFT in VLSI PPT?
Dft (design for testability) SlideShare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
What is meant by Design for testability?
Design For Testability (or Design for Test, or DFT) refers to design techniques that make products easier to test. Examples include the addition of test points, parametric measurement devices, self-test diagnotics, test modes, and scan design.
What is sequential depth in DFT?
sequential depth is the number of capture cycles executed before unloading your scan chains.
How can testability be determined?
Testability is determined in the design and development phases, but it often gets overlooked for other requirements such as usability and functionality since the application is usually built for the user rather than for the QA team.
What is test insertion?
Test point insertion (TPI) involves adding control and observation points to the CUT. Observation points involve making a node observable by making it a primary output or sampling it in a scan cell. Control points involve ANDing or ORing a node with an activation signal as illustrated in Fig.
What is fault grading in DFT?
Fault grading is a procedure that rates testability by relating the number of fabrication defects that can in fact be detected with a test vector set under consideration to the total number of conceivable faults.
What are the basic requirements to write Appium tests?
Following prerequisites must be installed so as to successfully run tests on an android application in Appium locally :
- Java Development Kit (JDK).
- Android Studio.
- Android SDK Tools.
- Eclipse IDE.
- Appium Desktop Client.
- TestNG.
- Selenium Server JAR.
- Webdriver Language Binding Library.
What are the limitations of Appium?
Here are some disadvantages of Appium:
- The testing of those android that are lower than 4.2 is not allowed.
- Appium has limited support for hybrid app testing.
- There is no support that will allow you to run Appium inspector on Microsoft windows.
- Doesn’t support image comparison.
What is testability quality attribute?
Testability Defined. Testability is a quality attribute among other “ilities” like reliability, maintainability, and usability. Just like the other quality attributes, it can be broken down into more fine-grained components (Figure 4.2). Observability and controllability are the two cornerstones of testability.
What is test coverage in DFT?
Test coverage is defined as the percentage of detected faults out of total detectable faults. This coverage is a more meaningful evaluation for test pattern quality. Fault coverage is defined as the percentage of detected faults out of all faults, including the ATPG Undetected faults.
What is Appium architecture?
Appium is an open source, cross-platform automation testing tool. It is currently geared towards providing a seamless automation testing experience for mobile applications that run on Android and iOS. Appium is a server, written using node.
What are the features of Appium?
Features of Appium Appium provides a strong and active community. Appium has multi-platform support i.e., it can run the same test cases on multiple platforms. Appium allows the parallel execution of test scripts. In Appium, a small change does not require re-installation of the application.
What are testability tactics?
There are two categories of tactics for testability: – The first category deals with adding controllability and observability to the system. – The second deals with limiting complexity in the system’s design. test harness or through normal execution.
What is path delay in DFT?
The path-delay fault is an important fault model used in delay testing. The following definitions characterize it. Definition 12.1 Path-delay fault. The delay defect in the circuit is assumed to. cause the cumulative delay of a combinational path to exceed some specified duration.
What type of server is Appium?
The Appium Client/Server Architecture In the core, Appium is a web server that exposes any REST API. It establishes a connection with the client, captures the commands, executes those commands on a physical device, and sends the result of the command execution via an HTTP response.
Which protocol used for Appium?
Appium is an ‘HTTP Server’ written using a Node. js platform and drives iOS and an Android session using Webdriver JSON wire protocol.