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The four relational models are as follows: Communal sharing (CS) relationships are the most basic form of relationship where some bounded group of people are conceived as equivalent, undifferentiated and interchangeable such that distinct individual identities are disregarded and commonalities are emphasized, with intimate and kinship relations being prototypical examples of CS relationship. [2]
Codd's twelve rules [1] are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS).
The Fiedler contingency model argues that three situational components can determine whether task-oriented or relationship-oriented leadership is the better fit for the situation: Leader-Member Relations, referring to the degree of mutual trust, respect and confidence between the leader and the subordinates.
The leader–member exchange (LMX) theory is a relationship-based approach to leadership that focuses on the two-way relationship between leaders and followers. [1]The latest version (2016) of leader–member exchange theory of leadership development explains the growth of vertical dyadic workplace influence and team performance in terms of selection and self-selection of informal ...
Knapp's relational development model portrays relationship development as a ten step process, broken into two phases. Created by and named after communication scholar Mark L. Knapp , the model suggests that all of the steps should be done one at a time, in sequence, to make sure they are effective.
Relational Model/Tasmania (RM/T) was published by Edgar F. Codd in 1979 and is the name given to a number of extensions to his original relational model (RM) published in 1970. The overall goal of the RM/T was to define some fundamental semantic units, at "atomic" and "molecular" levels, for data modelling .
The three levels referred to in the model's name are Public, Private and Personal leadership. The model is usually presented in diagram form as three concentric circles and four outwardly directed arrows, with personal leadership in the center. The first two levels – public and private leadership – are "outer" or "behavioral" levels ...
The theory focuses on types of leader-subordinate relationships [4] which are further classified into subgroups, namely the in-group and the out-group. [5] The in-group consists of members that receive greater responsibilities and encouragement, [5] and are able to express opinions without having any restrictions.