Claims:We Claim,
1. A system and method with electronic signature smart assist feature comprising of;
- a receiver computer system,
- a sender computer system,
- at least one database of the system,
characterized in that,
a smart assist feature of the said system on receiving an electronic document for signing, extracts and uploads version of previously negotiated document of the same document for comparison to authenticate data related to key values in these two versions before electronically signing it.

2. The system as claimed in claim 1, wherein the said smart assist feature of the said system assists in uploading and comparing two versions of similar documents for key factors/key values and alert users for deviation if any before electronically signing the documents.

3. The system as claimed in claim 1, wherein key factors/key values for each document are stored as set of meta data fields in the database of the said system.

4. The system as claimed in claim 1, wherein the said smart assist feature compares the key factors/key values stored in meta data field as extracted from the previously negotiated version based on heuristic patterns.

5. The system as claimed in claim 1, wherein the said meta data fields are pre-configured by the users as per the need and are also editable while comparing two versions of the same document.

6. The method as claimed in claim 1, for authenticating data in a document with electronic signature smart assist feature comprises the steps of:
i. receiving a said version of document by a user (receiver) from another user (sender), for which previously negotiated version exists with the receiver,
ii. accessing the meta data fields to access generated form of meta data field for key values/key factors for comparison,
iii. adding more fields for required key values/key factors for comparison to already present meta data field if required,
iv. extracting and uploading previously negotiated version of the received said version of a document for comparison,
v. comparing meta data fields with the smart assist feature to compare pre-determined meta data fields as generated through the meta data forms,
vi. comparing said received and previous version for deviation if any in the key values/key factors by the smart assist feature of the present invention,
vii. displaying output as ‘Green flag’ if no deviation, or
viii. displaying output to user as ‘Red flag’ against each deviated meta data and alerting the user not to sign the document.
, Description:FIELD OF INVENTION
The present invention relates to extraction and comparison of data in a document and more particularly it relates to extraction and uploading of key value data in previously negotiated version of a documents for comparison to key value data in a new version of the same document before signing it.

BACKGROUND
Several government, non-government and private organizations around the world have drastically reduced use of paper to type or print some material and further maintain such hardcopies of document as permanent records. This change seen is due to the difficulty in maintaining such records which not only occupy huge amount of storage space but also requires to be maintained adequately for preserving them over a long period of time in good state.
These organizations where huge amount of documentation happens daily have moved to electronic documents that need zero maintenance nor do they occupy much space. These electronic documents once prepared are signed by the authorities, sealed and stored electronically. During the preparation stage of such documents, it is often seen that such documents move to-and-fro between individuals for finalization of content and to check its authenticity too. On receiving its final approval these documents are sent to the respective high officials for seal/signature etc.
However, the advent use of electronic documents is seeing its own drawback of document fraud, forgery, etc. Once an author/ writer/originator prepares a document and such document is either sent for review or for final signature the receiver cannot guarantee its authenticity with respect to deviation if any from the previous version. Further it is impossible to check the document word by word for deviation if any manually without human error.
Thus, there arises a need of means that address the problem of auto- alerting user for deviation of data in documents and especially in electronic documents when such documents are sent from one user to another for signature.

PRIOR ART
US patent document US7302576 describes one-way hash recognition for represented document and assist information. It discloses methods and systems for authenticating documents. Document data to be modified to contain authentication is inputted. A representation is determined from the document data. Assist information that is usable to reliably recover a deters mined representation is determined. A one-way hash of the representation and assist information is determined. The one-way hash is then cryptographically signed. The assist information and digitally signed one-way hash is then appended to the document.
US patent document US9268969 describes a method to search for authentic document when looking at a copy of it for e.g., driving licence requirement by a policeman at signal. This invention relies on e-tags that are put on original document that help the user extract that same document when needed by scanning the e-tag. In this invention a code is added as a marking to a document and encodes an identifier that maps to a copy of the document stored in a database. Database copies of stored documents are preferably digitally signed. Using a device Such as a Smartphone, a user may extract the document identifier from the marking on a purported authentic version of the document and retrieve a copy of the document from the corresponding location in the database. The user can then visually compare the purported authentic version of the document with the retrieved database copy.
US document US6748102B2- The invention evaluates markings in half-tone fields by ascertaining a first dot count of dots isolated from the marking in the half-tone field of the document; forming an image of the marking; superimposing the image on a blank half-tone field having the same predetermined pattern as the half-tone field of the document; ascertaining a second dot count of dots isolated from the image superimposed on the blank half-tone field; and determining whether the marking has been altered by comparing the first dot count to the second dot count. An alteration is indicated where the first dot count and second dot count are different.
None of the prior arts mentioned above solve the problem of alerting a user for deviation if any, related to any key values/key factors as desired by the user before electronically signing the document such that the user can check the authenticity of the document with respect to the previously negotiated version between him and the other user in a comparative manner, and in a way where deviated values are correctly extracted and uploaded for the user to view at a glance.
OBJECTS OF THE INVENTION
Primary object of the present invention is to authenticate key values/key factors in documents received by a user from another user for signature.
Yet another object of the present invention is to extract and upload previously negotiated version of a document sent to a user from another user between whom said document was previously negotiated.
Yet another object of the present invention is to compare and verify electronic documents before final signature for change/ alterations if any to key values from the previously negotiated version.
Yet another object of the present invention is to check altered values, words, numerals in electronic documents as compared to the previously negotiated version.
Yet another object of the present invention is to alert the user for deviations if any from the previously negotiated version of the electronic document before he/she can electronically sign the said document by flagging such deviations with a red flag.

SUMMARY OF THE INVENTION
The present invention is a system and method for electronic signature with smart assist feature for authenticating data in a document comprising of, atleast one receiver computer system or mobile device, a sender computer system/ mobile device, database for storage. The sender is the one who sends a version of document to a receiver to be signed. The system of the present invention with its smart assist feature, assists the users to authenticate data between previously negotiated and, the present version of the same document, to check veracity of the document pertaining to the key factors/ key values as pre-defined by the user before finally signing them and marks deviation if any by ‘red flag’ and thus alert the user. The smart assist feature generates and stores ‘meta data’ for every document for key values as pre-defined by the user, which are then extracted for comparison.

BRIEF DESCRIPTION OF DIAGRAMS
FIG.-1 depicts work flow of steps performed by the electronic signature smart assist feature to extract and upload two versions of the same document for comparing their Key values/Key factors.
FIG.-2 depicts work flow of steps for form generation for storing pre-defined meta data fields for a document.

DETAILED DESCRIPTION OF DIAGRAMS
Before the present invention is described, it is to be understood that this invention is not limited to particular methodologies described, as these may vary as per the person skilled in the art. It is also to be understood that the terminology used in the description is for the purpose of describing the particular embodiments only, and is not intended to limit the scope of the present invention. Throughout this specification, the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps. The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the invention to achieve one or more of the desired objects or results. Various embodiments of the present invention are described below. It is, however noted that the present invention is not limited to these embodiments, but rather the intention is that modifications those are apparent are also included.
In e- commerce industry electronically signing documents is a very common phenomena these days. In a company many internal decisions, programs, schemes, rules and regulations are drafted which need to be signed by higher authorities to authorize them before implementation. A very first step of any business relationship is also to sign a document for understanding between the parties. These documents are very important as they form the key basics of the business arrangement between parties and their entire business depends on the clauses as stated in these signed documents.
The present invention is a system and method for electronic signature with smart assist feature for authenticating data in a document comprising of, atleast one receiver computer system or mobile device, a sender computer system/ mobile device, database for storage. The sender is the one who sends a version of document to a receiver to be signed. The system of the present invention with its smart assist feature, assists the users to authenticate data between previously negotiated and, the present version of the same document, to check veracity of the document pertaining to the key factors/ key values as pre-defined by the user before finally signing them.
Referring to fig.-1 in a preferred embodiment of the present invention, a user receives ‘X’ version of a document for signature for which the previous drafted version ‘Y’ is available with the user. The smart assist feature of the system of the present invention is such that it is enabled to extract and upload the previous version ‘Y’ of the same document for comparison. The smart assist feature of the present system then compares ‘X’ and ‘Y’ version of the documents for key clauses/key factors as pre-configured by the user for that document. While comparing the two documents if any deviation is found then the smart assist feature of the system highlights the said deviations. The said system of the present invention with the smart assist feature raises red flag to each deviated key clause/key factor and thus alerts the users for authenticity of the said document helping him decide whether or not to sign the deviated document X. If no deviation is found in any of the key clause/key factor then the said system marks the document safe for signing it electronically.
In contract related documents there are certain key clauses or key factors defining the essence of the document. These key clauses or key factors are the core considerations of the document and they define the scope and purpose behind signing such documents before implementation. In the present invention the system of the present invention with its smart assist feature identifies all such key clauses/key factors as ‘meta data’. These ‘meta data’ are user configurable and a user can pre-define set of ‘meta data’ for a particular document which is then stored in the system of the present invention against the specific document. The system of the present invention with its smart assist feature identifies and compares these ‘meta data’ fields in a document while assisting a user in determining the authenticity of a document before signing it.
The said system of the present invention has set of these pre-configured meta data fields pre-defined by user and stored in storage means like databases. These fields are also configurable as per the need of the user for different contract documents authentication while doing a comparison to authenticate two documents.
In yet another embodiment of the present invention referring fig.-2, users can create a form for meta data fields for key values of any document using the smart assist feature of the present invention. The said system of the present invention with smart assist feature generates the form using pre-configured meta data fields as defined by the users. The user can modify or add new meta data fields to the pre-configured meta data field for key values of any document. This data is stored in the meta data field entry of the system. Thus, when a user (receiver) receives a document ‘X’ for electronic signature from the sender and the receiver has a previous version ‘Y’. The system of the present invention with smart assist feature extracts and uploads the previously negotiated ‘Y’ version of the document for comparison. Based on the pre-configured meta data fields stored the of the present invention with smart assist feature determines which all meta-data fields are to be compared in the ‘X and ‘Y’ documents and extracts corresponding inputs from the version ‘X’ that deviate from the previously negotiated version ‘Y’ and are presented to the user as alerts marked with a red flag.
The electronic signature smart assist feature of the present invention extracts and uploads corresponding inputs of the fields with deviated meta data based on the heuristic pattern.
The present invention is now being described by way of example; however, it is not to be construed in any manner to limit the scope of the invention.
Consider that a user ‘A’ has negotiated a contract document ‘Y’ with a party ‘B’. The said document Y is with party B for consideration. The party B satisfied with the document and its terms with minor corrections have mailed the document back to A for signature. The system of the user A stores this version of the document as version X (version as received). The system of the present invention allows the user to extract and upload the previously negotiated version ‘Y’ for comparing it with the received version ‘X’ on his computer/laptop/mobile (while working in the electronic signature workflow). The electronic signature with smart assist feature is a novel feature in that, it enables extraction and uploading of the previous versions of required documents for comparing with the received version of the same document within the system of the present invention.
In this example consider the meta data fields as configured by a user A for this contract are:
1. Limitation of liability
2. Contract value
3. Term of contract
4. Termination
5. Start date
6. Expiry date
7. Renewal term
The smart assist feature of the present invention has extracted following values for these meta fields from the previous version Y for comparing it with values in X. This process of extraction and uploading of meta data fields by the electronic signature smart assist feature is based on heuristic patterns for the configurable set of meta data fields as defined by the user. The following is the output in this case as extracted for given set of meta data:
1. Limitation of liability=----------- 200,000 USD
2. Contract value---------------------2bn USD
3. Term of contract--------------------3YEARS
4. Termination----------------------------No termination for convenience.
5. Start date-----------------------------Jan 2021
6. Expiry date---------------------------Feb 2023
7. Renewal term--------------------------2 years
8. Price escalation for renewal-----------5%
The present said system then compares the extracted meta data fields from the previously negotiated version Y as uploaded and extracted to that of the received version X of the document. In this case the output for X being:
1. Limitation of liability=----------- 100,000 USD
2. Contract value---------------------2bn USD
3. Term of contract--------------------3YEARS
4. Termination----------------------------Can terminate at any time
5. Start date-----------------------------Jan 2021
6. Expiry date---------------------------Feb 2023
7. renewal term--------------------------1 year
8. Price escalation for renewal-----------5%
Since there is major deviation in the meta data field of two versions of the document the system alerts the user by flagging the deviation with a red flag.
1. Limitation of liability=----------- 100,000 USD--------------------------------------deviation
2. Contract value---------------------2bn USD
3. Term of contract--------------------3YEARS
4. Termination----------------------------Can terminate at any time----------deviation
5. Start date-----------------------------Jan 2021
6. Expiry date---------------------------feb 2023
7. renewal term--------------------------1 years-------------------------------deviation
8. Price escalation for renewal-----------5%
The system of the present invention with its smart assist feature brings up such critical deviations to the user with alert as red flags that document deviates from the previously negotiated version or its key values and cannot be signed as such.
While considerable emphasis has been placed herein on the specific elements of the preferred embodiment, it will be appreciated that many alterations can be made and that many modifications can be made in preferred embodiment without departing from the principles of the invention. These and other changes in the preferred embodiments of the invention will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.