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This paper presents a comprehensive software-based technique that is capable of detecting soft errors in embedded systems. Soft errors can be categorized into Control Flow Errors (CFEs) and data errors. The CFEs change the flow of the program erroneously and data errors also change the results. In this paper, a new comprehensive method is presented to detect both (based on combination of authors’ previous works). In order to evaluate the proposed method, a new factor is defined that considers three main parameters simultaneously; namely fault coverage, memory overhead, and performance overhead. Since these parameters are very important in safety critical applications, they should be improved concurrently. The experimental results on SPEC2000 benchmarks show that the Evaluation Factor of the proposed method is 50% better than the Relationship Signatures for Control Flow Checking with Data Validation (RSCFCDV) methods, which are suggested in the literature.