Program testing..

The logical and syntax errors have been pointed out by program testing. syntax error is the error occurred in the program will run a program. an improper defined field dimension and omitted keyword are common syntax error. these error show through syntax error generated by computer.the compiler will not detect the logical errors so the programmer must generate the output. condition testing excercise the logical conditions contained in the module. the possible condition include a boolean operator , boolean variables. A relational operator or on arithmatic expression. condition testing method focuses on testing each condition in the program the purpose of condition testing is to deduct not only condition errors in a program but also other errors in the program.
security testing attempt to verify the protection mechanism built in to a system well. the security testing protect the system from improper penetritation. the system security must be tested for invulnerability from rear attack. During security , the tester places the role of individual who desires to penetrate system.