It's also helpful to remember that those who identify themselves as missionaries, raise support, and serve through traditional missionary sending organizations often find that their ministry may require or benefit greatly from working a "regular job" in their host community, whether or not they are fully supported by that job.
Longtime "tentmaker" and business-as-mission advocate Patrick Lai provides the following definitions which you may find helpful.
- Worker, or cross-cultural worker Ė descriptive of someone called to serve Jesus outside of his/her home culture.
- Missionary Ė someone who is paid or supported by churches and donors to serve God in another culture.
- Tentmaker Ė a believer who intentionally takes a job with a company in another culture, is fully supported by that job, and strives to witness cross-culturally.
- Bi-vocational Ė someone who works two jobs, often one for pay and one as a volunteer worker or supported by donors Ė not a B4T worker.
- B4T (Business for Transformation) Ė businesses strategically placed in unreached areas designed to create jobs and bless the local community in Jesus' name; generally through transformation, and specifically through evangelism, discipleship, and church planting. [Also known as transformational business.]
- BAM (Business as Mission) Ė business as mission is a term being used in Christian circles to describe the integration of ministry goals and business goals to make an impact for God' Kingdom. As a strategy, BAM generally describes any for-profit business endeavor that seeks to reach people and communities for the glory of God and is not artificially supported by donor funds.
Source: B4T Terms and Definitions.
Keep in mind that some of these terms may be defined differently by other practitioners or even used interchangeably. It may be helpful to think of B4T as a subset of BAM. It seems that both BAM and B4T workers may have varying levels of reliance on funds given by outside parties. They may raise funds as start-up capital. Some do not draw a salary from their business as all, while others draw a salary at local levels and raise funds to cover additional expenses. Perspectives on these questions will vary depending on who you talk to in the BAM/B4T community, and as approaches to combining business and mission continue to evolve.
See also 9 Business as Mission Websites.