A literature survey revealed that the single word "roadmap" has surfaced as a popular metaphor for planning resources for science and technology development. The variant term of "roadmapping" is a new verb that describes the process of roadmap development. In this paper, roadmapping process is identified to be an interactive process and achieve higher likelihood of promoting knowledge flow and facilitating knowledge integration within and among an organization(s). Based on core competence and knowledge-based view, it is shown that organization's core competence can be strengthened more effectively and firmly through roadmapping process due to its feature as an effective collective learning. Consequently, more competitive advantage is established and sustained by using roadmapping approach.