What are disadvantages of automated testing tools?

Automated tools have following disadvantages.

Usability Testing:
Usability of software can not be automated so automated tools cannot rate the usability of an application.

Cost:

 Usually these are licensed so automated tools are quite expensive

Programming knowledge required:
 To customize test scripts according to test requirement.
Test maintenance is costly: In case of playback methods.
Even though a minor change occurs in the GUI, the test script has to be rerecorded or replaced by a new test script.

What are testing types?

Testing Types

• Functional Testing
• Regression Testing
• Usability Testing
• Compatibility Testing
• Performance Testing
• Security Testing
• Volume Testing
• Load Testing
• Sanity Testing
• Smoke Testing

What is system testing?

System Testing

System testing is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements.

It includes following

• Functional/ Regression Testing
• Usability Testing
• Compatibility Testing
• Performance Testing
• Security Testing etc

It is done by testers