Benefits to customers from using ISPL:
- clearer expression of requirements
- improvement of risk management
- guidance in choosing the appropriate acquisition approach for a specific problem situation
- better understanding of suppliers’ proposals
- easier evaluation of suppliers’ proposals
- easier control of ambitions
- better information to control costs
- avoidance of lock-in to supplier
- avoidance of lock-in to a specific method
- improved decision process relating to deliverables
- easier system acceptance through a better definition of the requirements
- better management of contracts
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Benefits to suppliers from using ISPL
- better understanding of customers’ needs
- a clearer view of the customer’s service
- enhanced management of risks involved in a service
- determination of the appropriate approach to deliver the service
- easier to obtain a clear endorsement from the customer of the key design decisions
- easier system acceptance, through better requirements definition
- better information to control costs
- easier control of ambitions
- better management of contracts