Background of the MBTI ®
Over the sixty years since its inception in 1943, the MBTI or Myers-Briggs Type Indicator ® has evolved and been perfected through continual test research and development of ever more accurate questions. Many, many millions of people have taken the test (actually the Indicator is an inventory or psychological instrument rather than a test - as a test suggests right and wrong answers. All answer choices in the MBTI are equally desired). The MBTI research data base is huge. The subtle enhancements to recently released "M" edition of the inventory were the product of a landmark normative study involving thousands of people and over two years of work by a team of experts in the field of psychometrics (psychological testing). (The above (text and short description of my profile is cited from http://www.personalitypathways.com)
Dependable, reliable and trustworthy, they like to belong to solid organizations that are reasonable in their ambitions and loyal to their employees. They feel useful when their roles and responsibilities are clearly established and they can monitor their activities and productivity in tangible ways.
Background of SDI, A Personal Note by Elias H. Porter, Ph.D.
Relationship Awareness Theory is based on the premise that one's behavior traits are consistent with what one finds gratifying in interpersonal relations and with concepts or beliefs one holds about how to interact with others to achieve those gratifications. Although many personality theories are about people, this theory was meant for people. It was intended to provide an effective means for understanding one's self and for understanding others so that interpersonal relationships could be mutually productive and gratifying. The theory was planned to help people organize their concepts of themselves and their concepts of others around three basic motivations: wanting to be of genuine help to others, wanting to be the leader of others, and wanting to be self-dependent. The above text is cited from http://www.personalstrengthsuk.com/sdi-applications/sdi-and-leadership
Hub (Flexible-Cohering) is a consensus-based style of leadership. Leaders who score centrally in the triangle tend to be concerned about incorporating input from multiple sources to produce a result acceptable to all parties. They tend to select strategies that allow future flexibility and preserve or generate future options. In an effort to balance their decision-making, they may make decisions that look inconsistent to observers.