Semantic annotations of web services are useful in service discovery only when it reflects accurate service. But the rate of defects in semantic annotations was found to be very high due to the need for human interaction and expertise. The purpose of this work is to verify the semantic annotation of web services. The verification is based on the conventional testing process. In this paper, emphasis is laid on automation of semantic annotations to increase the efficiency and accuracy to provide useful web service through which the required data can be reproduced according to the specification defined by the services. In particular, the study proposed a technique from software testing to address the problem of semantic annotation verification. A software testing has been well proven to be effective for verification of software program behavior according to its specifications. By using a test suite which consists of test cases with specific data values for feeding the execution, therefore the expected outputs are generated as per the specification. As specified by the test cases, the software is executed using the input values. In this way, there is a possibility to identify a defect due to the inconsistency between the output delivered and expected by a test case. The advantages of proposed model are: (1) ease of use when information, (2) automatic compliance to system requirements and specification, (3) improved accuracy, (4) use of ontology based partitioning, (5) efficient defect detection mechanisms. © Springer International Publishing Switzerland 2016.