Veda: an on-line generative testing system

Veda is a generative testing system that supports the design and administration of tests, on-line and off-line. Veda provides tools for test designers to create question generators. Veda authenticates the candidate's identity, administers a test, evaluates the candidate's answers and keeps a record of the candidate's scores. The system also provides facilities for item analysis. There are provisions for computing statistical indices for individual questions, based on data from tests administered. These indices can be used for item evaluation and improvement. An interesting feature of Veda's design is the security features built into it. Cryptographic techniques have been used to create a system offering a high degree of protection against leakage, theft or unauthorized modification. Veda was developed using the programming language C, under the UNIX operating system, and is in heavy use