Implementation phase and testing phase

1. Implementation phase and testing phase MUHAMMED ZUBAIR AWAN LECTURE 4

2. deployment • Purpose of Deployment Phase. The deployment phase is the final phase of thesoftware development life cycle (SDLC) and puts the product into production. After the project team tests the product and the product passes each testing phase, the product is ready to go live.

3. Implementation/deployment • This means that the product is ready to be used in a real environment by all end users of the product.

4. /deployment • In the preparation and procedures phase, the project team installs the software and conducts another test to ensure successful installation. Once the installation is complete, the project team creates operating procedures, which include instructions for how the software should work in the information technology environment.

5. Implementation/deployment • If there are issues with system functionality, the operating instructions also provide a mitigation plan to help the end user repair the issue

6. Implementation/deployment • Under the product deployment phase, the project team implements the programming and coding to each system location. For example, say a company has two regional worksites in lahore and karachi and over 5,000 computer systems. The deployment phase includes pushing the program and coding to each regional site and each computer system.

7. Ownership Transfer • Once the program and code deploy to each system, the project team's work is complete. They can transfer ownership to the business who is now responsible for maintaining the system functionality. The project team transfers ownership of the program and code, along with all operating procedures, to the business.

8. Close Deployment • Close Deployment • After the project team deploys the product and transfers ownership of the product to the business, it is time to document the results and close the project. The project team completes the project plan and updates the completion date

9. Testing phase • This is almost final step in the SDLC • MOST IMPORTANT

10. Testing phase • Software testing is the process of evaluation a software item to detect differences between given input and expected output. Also to assess the feature of A software item. Testing assesses the quality of the product. Software testing is a process that should be done during the development process. In other words software testing is a verification and validation process.

11. Why to test the product? • To identify the errors  • To remove ambiguity  • To improve the reputation of the company  • To improve quality of the product  • To remove Hazards  • For verification and validation  • To improve reliability  • To improve cost  • To increase the usability

12. Verification • Verification is the process to make sure the product satisfies the conditions imposed at the start of the development phase. In other words, to make sure the product behaves the way we want it to.

13. Validation • Validation is the process to make sure the product satisfies the specified requirements at the end of the development phase. In other words, to make sure the product is built as per customer requirements.

14. What are two types of testing? • Blackbox Testing • Black box testing is a testing technique that ignores the internal mechanism of the system and focuses on the output generated against any input and execution of the system. It is also called functional testing. • Whitebox Testing  • White box testing is a testing technique that takes into account the internal mechanism of a system. It is also called structural testing and glass box testing.

15. Other Types of testing • Unit Testing • Integration Testing • Functional Testing • System Testing • Stress Testing • Performance Testing • Usability Testing • Acceptance Testing • Regression Testing • Beta Testing

16. Unit Testing • Unit testing is the testing of an individual unit or group of related units. It falls under the class of white box testing. It is often done by the programmer to test that the unit he/she has implemented is producing expected output against given input.

17. Integration Testing • Integration testing is testing in which a group of components are combined to produce output. Also, the interaction between software and hardware is tested in integration testing if software and hardware components have any relation. It may fall under both white box testing and black box testing.

18. Functional Testing • Functional testing is the testing to ensure that the specified functionality required in the system requirements works. It falls under the class of black box testing.

19. System Testing • System testing is the testing to ensure that by putting the software in different environments (e.g., Operating Systems) it still works. System testing is done with full system implementation and environment. It falls under the class of black box testing

20. Stress Testing • Stress testing is the testing to evaluate how system behaves under unfavorable conditions. Testing is conducted at beyond limits of the specifications. It falls under the class of black box testing. 

21. Performance Testing • Performance testing is the testing to assess the speed and effectiveness of the system and to make sure it is generating results within a specified time as in performance requirements. It falls under the class of black box testing.

22. Usability Testing • Usability Testing • Usability testing is performed to the perspective of the client, to evaluate how the GUI is user-friendly? How easily can the client learn? After learning how to use, how proficiently can the client perform? How pleasing is it to use its design? This falls under the class of black box testing.

23. Acceptance Testing • Acceptance testing is often done by the customer to ensure that the delivered product meets the requirements and works as the customer expected. It falls under the class of black box testing.

24. Regression Testing • Regression testing is the testing after modification of a system, component, or a group of related units to ensure that the modification is working correctly and is not damaging or imposing other modules to produce unexpected results. It falls under the class of black box testing.

25. Beta Testing • Beta testing is the testing which is done by end users, a team outside development, or publicly releasing full pre-version of the product which is known as beta version. The aim of beta testing is to cover unexpected errors. It falls under the class of black box testing.