Abstract
Procurement refers to a process resulting in delivery of goods or services within a set time period. The process includes aspects of purchasing, specifications to be met, and solicitation notifications as in the case of Request For Proposals (RFPs). Typically, such an RFP is described in a verbal ad hoc fashion, in English, with tables and graphs, resulting in imprecise specifications of requirements. It has been proposed that BPMN diagrams be used to specify requirements to be included in RFP. This paper is a merger of three topics: 1) Procurement development with a focus on operational specification of RFP; 2) Public key infrastructure (PKI) as an RFP subject; and 3) Conceptual modeling that produces a diagram as a supplement to an RFP to clarify requirements more precisely than traditional tools, such as natural language, tables, and ad hoc graphs.
Highlights
Procurement refers to “a careful, usually documented process resulting in delivery of goods or services within a set time period” [1]
Without loss of generality the present study focuses on the first phase of the procurement process, which includes needs specification and construction of the request for proposal (RFP)
Because of our case study, this paper focuses on certificate authorities (CAs) instead of such approaches as web of trust and simple public key infrastructure
Summary
Procurement refers to “a careful, usually documented process resulting in delivery of goods or services within a set time period” [1]. In project management the process includes aspects of purchasing, specifications to be met, and solicitation notifications. Procurement, known as purchasing and supply, “is amongst the key links in the supply chain and as such can have a significant influence on the overall success of the organization” [2]. Without loss of generality the present study focuses on the first phase of the procurement process, which includes needs specification and construction of the request for proposal (RFP)
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