A Meta-model for e-Contract Template Variable Dependencies Facilitating e- Negotiation Dickson K.W. CHIU Dept. of Computer Science & Engineering, Chinese University of Hong Kong [email protected], [email protected]Shing-Chi CHEUNG Dept. of Computer Science Hong Kong University of Science & Technology [email protected]Patrick C.K. Hung Dept. of Management Sciences University of Waterloo [email protected].ca
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A Meta-model for e-Contract Template Variable Dependencies Facilitating e-Negotiation Dickson K.W. CHIU Dept. of Computer Science & Engineering, Chinese.
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A Meta-model for e-Contract Template Variable
Dependencies Facilitating e-Negotiation
Dickson K.W. CHIU Dept. of Computer Science & Engineering,
computerized facilitation or automation of a contract cross-organizational business process
Negotiation a decision process in which two or more parties make
individual decisions and interact with each other for mutual gain
e-Negotiation perform negotiation activities over the Internet
ER2002-3
Contract Templates Reference document based on which a new contract is created Contains a set of template variables whose values are to be
negotiated Particularly applicable to standard business interactions that
could be taken place over the Internet Such as real-estate transactions, purchase and sale of goods,
etc. New e-Contracts for these business interactions can be defined
based on standard contract templates Specific business interactions not covered by the clauses in
standard contract templates can be provided as contract variations or contract escalations
Tenant is required to pay landlord [ ] months’ deposit, amount to [ ], which is refundable without interests upon contract termination on the condition that …
ER2002-4
Motivation and Objectives
e-Contract template and template variables facilitate negotiation by avoiding uncontrolled openness of issues
Address specific semantic requirement of contracts for supporting B2B applications
Reduce cost and improve effectiveness of negotiation(avoid combinatorial explosion of issues)
Development of an effective and efficient negotiation plan in a natural way
Rapid development and deployment of a flexible negotiation support system (NSS) through reuse
ER2002-5
Overall Meta-modeling Approach Based on business experience and
requirements, contract templates (with variables) are abstracted from previous contracts
A contract template is modeled as an e-Contract template
Derive e-Negotiation plan Execute the e-Negotiation plan with a NSS Each successful e-Negotiation will lead to an e-
Contract
ER2002-6
Meta-Model of an e-Contract Template
e-ContractTemplate
*1
1..*
1..*
TemplateVariable
indivisiblyrelates to
*
*
2..*
involves
*
set values to
Obligation Permission Prohibition
*
*
precedes
e-Contract Party
concerns
Contract Clause
references
ER2002-7
A Lease e-Contract Template as an Instance of the Meta-model
lease:e-Contract Template
landlord:Party
tenant:Party
deposit payment:Contract Clause
facilities inclusion:Contract Clause
effective period:Contract Clause
rent payment:Contract Clause
deposit:Template Variable
numOfMonths:Template Variable
facilities provision:Template Variable
lease period:Template Variable
start date:Template Variable
rent:Template Variable
mgt fee payment:Contract Clause
mgt fee inclusion:Template Variable
precedes indivisibly relates to
ER2002-8
Motivating Example
leaseperiod
facilitiesprovision
basic rent
start date
additional fee1
mgt feeinclusion
additionalfee2
Landlord
Tenant
rent
deposit
numOfMonths
Relationships among variables Negotiated in a bundle, e.g., facilities provision, lease period and
rent A partial order, e.g., rent and deposit Individually negotiated, e.g., start date, management fee inclusion Principle variables (e.g., rent) made up of parts called auxiliary