1. A method for representing operational risk information in a business process model, said method comprising: specifying, at a computer device, first data defining a job type that is to be processed in a business process model, said job type having associated job attributes specifying for determining an order of activities to be performed; receiving, at said computer device, second data for said job type, said second data specifying one or more resources and associated functions of resources that support activity execution and one or more preconditions to be fulfilled by the resources performing said functions, said second data for said job type further comprising a defined set of performance measures related to activity execution and to job output quality, said job output quality including job quality states defined according to different levels of quality; receiving, at said computer device, third data defining a set of risk events that potentially compromise said performance measures, a risk event having assigned one or more attributes specifying risk event frequency and severity level, said set of risk events being linked to one or more resources; receiving, at said computer device, fourth data specifying one or more preconditions for said activities in terms of requirements to be fulfilled to begin activity execution; providing a function for each activity that maps a state of a resource, job, external factor, as well as an occurrence or non-occurrence of one or more errors, to output states of said resources and jobs and to said activity execution performance measures; and, generating, at said computer device, a risk-extended business model extended to incorporate said first, second third and fourth data using said activity mapping function, said business model including a representation and impact of operational risk, wherein an activity of a job type relates to a plurality of components including a corresponding precondition component having said specified preconditions, an execution component, a remediation component, and said job type activity being influenced by procedural errors and execution errors; wherein for an activity of a job type, said risk-extended business model including verifying that one or more preconditions are fulfilled, and executing the activity upon said verification, where the executing activity outcome is influenced by execution failure events, states of a data object representing a job, supporting resources, and environmental factors; and, if the preconditions are not met, said risk-extended business model specifying delaying or canceling the activity, or performing remedial steps in order to ensure that activity execution can begin, wherein a detected precondition error links to a separate set of defined preconditions; and every violation of a precondition set links to a remediation action; and every execution error links to a different execution of the activity, wherein a programmed processor unit of said computer device performs said job type specifying, said retrieving first, second, third and fourth data, and said generating.