Abstract
With the Internet becoming part and parcel of our lives, there is an increase in vulnerability to copyright and piracy threats as well. Digital Watermarking has emerged as an effective TPM to protect databases that are either shared or outsourced from illegal infringement. The state-of-art in the domain of Integrity losses has been analysed and the results of different fragile watermarking techniques for relational and decision systems is discussed. Different phases of fragile watermarking technique is analyzed. Additionally, theoretical analysis of the tamper detection is done analysing various cases w.r.t. watermark extracted and re-generated. False Hit Rate is also considered as a measure for security analysis.