This paper examines how the Special Libraries Association competencies can be mapped to the broader business competencies of marketing (promoting), packaging (product development), persuading and performing (sales/customer service), and positioning (strategic maneuvering). It introduces a process whereby the skills, knowledge, understandings, and attitudes associated with each competency are identified and matched with the skills required in a business environment. Having matched the skills, knowledge, understandings, and attitudes and mapped the competencies, the author introduces a model for self-evaluation that enables individuals to assess their strengths and weaknesses and identify any skills gap that exists. The assessment can then be used to develop study programs, to support requests for professional development and to supplement performance reviews. If shared, the assessments can also be used to establish teams with an appropriate balance of skills and experience. Charts for matching personal and professional competencies, professional librarian competencies with business competencies, the components of a librarian competency with the business competencies, and the components of a librarian competency with the components of a business competency are appended. (Contains 12 references.) (MES)