Key MIS Theories
Theory Name Theory Summary Researcher (date) About the Researcher
Cognitive Fit Theory The correspondence between task and information presentation format leads to superior task performance for individual users. (In other words, how the information is presented to you will affect your performance in a given task) Iris Vessey (1991) Indiana University, Ph.D. University of Queensland
Cognitive Dissonance Theory There is a tendency for individuals to seek consistency among their cognitions (i.e., beliefs, opinions). When there is an inconsistency between attitudes or behaviors (dissonance), something must change to eliminate the dissonance. In the case of a discrepancy between attitudes and behavior, it is most likely that the attitude will change to accommodate the behavior. Leon Festinger (1957) Stanford University, Ph.D. University of Iowa
Interpersonal Deception Theory Interpersonal Deception Theory views deception through the theoretical lens of interpersonal communication. As such, it considers deception as an interactive process between a sender and receiver. In contrast with previous studies of deception that focused on the sender and receiver individually, IDT focuses on the dyadic, relational, and dialogic nature of deceptive communication. Behaviors between the sender and receiver are dynamic, multifunctional, multidimensional, and multimodal. Judee Burgoon (1996) University of Arizona, Ph.D. West Virginia University
Media Richness Theory Two main assumptions of this theory are: people want to overcome equivocality (ambiguity) and uncertainty (lack of information) in organizations and a variety of media commonly used in organizations work better for certain tasks than others. Using four criteria, Daft and Lengel present a media richness hierarchy, arranged from high to low degrees of richness, to illustrate the capacity of media types to process ambiguous communication in organizations. Richard L. Daft (1984) Vanderbilt, Ph.D. University of Chicago
Socio-technical Theory First, assume the technical subsystem which is comprised of the devices, tools and techniques needed to transform inputs into outputs in a way which enhances the economic performance of the organization. Next, assume the social subsystem which is comprised of employees (at all levels) and their knowledge, skills, attitudes, and values. The cornerstone of the sociotechnical approach was that the best fit was achieved by a design process aiming at the joint optimization of the subsystems: any organizational systems will maximize performance only if the interdependency of these subsystems is explicitly recognized. Hence any design or redesign must seek out the impact each subsystem has on the other and design must aim to achieve superior results by ensuring that all the subsystems are working in harmony. Many contributors…Enid Mumford (1967) University of Manchester, Ph.D. University of Manchester
TAM TAM posits that perceived usefulness and perceived ease of use determine an individual's intention to use a system with intention to use serving as a mediator of actual system use. Perceived usefulness is also seen as being directly impacted by perceived ease of use. Fred D. Davis (1986) University of Arkansas, Ph.D. MIT
UTAUT The Unified Theory of Acceptance and Use of Technology aims to explain user intentions to use an IS and subsequent usage behavior. The theory holds that four key constructs (performance expectancy, effort expectancy, social influence, and facilitating conditions) are direct determinants of usage intention and behaviour (Venkatesh et. al., 2003). Gender, age, experience, and voluntariness of use are posited to mediate the impact of the four key constructs on usage intention and behavior. Viswanath Venkatesh (2003) University of Maryland, Ph.D. University of Minnesota
Task Technology Fit Task-technology fit (TTF) theory holds that IT is more likely to have a positive impact on individual performance and be used if the capabilities of the IT match the tasks that the user must perform (Goodhue and Thompson, 1995). Goodhue and Thompson (1995) developed a measure of task-technology fit that consists of 8 factors: quality, locatability, authorization, compatibility, ease of use/training, production timeliness, systems reliability, and relationship with users. Dale Goodhue (1995) University of Georgia, Ph.D. MIT
Theory of Reasoned Action TRA posits that individual behavior is driven by behavioral intentions where behavioural intentions are a function of an individual's attitude toward the behaviour and subjective norms surrounding the performance of the behavior. Attitude toward the behavior is defined as the individual's positive or negative feelings about performing a behaviour. Subjective norm is defined as an individual's perception of whether people important to the individual think the behavior should be performed. Martin Fishbein (1967) University of Illinois, Ph.D. UCLA,
Competitive Strategy Theory Michael Porter's 1979 framework uses concepts developed in micro-economics to derive 5 forces that determine the attractiveness of a market. They consist of those forces close to a company that affect its ability to serve its customers and make a profit. A change in any of the forces requires a company to re-assess its marketplace. Four forces — the bargaining power of customers, the bargaining power of suppliers, the threat of new entrants, and the threat of substitute products — combine with other variables to influence a fifth force, the level of competition in an industry. Michael Porter (1979) Harvard, Ph.D. Harvard

These are 10 theories I chose to elaborate on. Feel free to add more theories with more descriptions.

Theory Originator Date
Agency Theory Alchian and Demsetz 1972
Cognitive Dissonance Theory Leon Festinger 1957
Competitive Strategy Theory Michael Porter 1979
Interpersonal Deception Theory Buller, Burgoon 1996
Media Richness Theory Daft & Lengel 1984
Social Network Theory J. Barnes 1957
Stakeholder Theory Freeman 1984
Task-Technology Fit Goodhue 1995
Technology Acceptance Model Davis 1985
Theory of Reasoned Action Fishbein 1967

What's the criteria to choose these 10?
I go through all theories, the following theories kinda originate from IS.
Cognitive Fit
Media Richness
Task Technology Fit

Information Retrieval Theory Mentioned by Jay
The term "information retrieval" may have been coined by Calvin Mooers in 1950 in his master thesis.
Calvin Mooers, Master from MIT
Died in 1994

Information retrieval (IR) is the science of searching for information in documents, searching for documents themselves, searching for metadata which describe documents, or searching within databases, whether relational stand-alone databases or hypertextually-networked databases such as the World Wide Web. There is a common confusion, however, between data retrieval, document retrieval, information retrieval, and text retrieval, and each of these has its own bodies of literature, theory, praxis and technologies. IR is, like most nascent fields, interdisciplinary, based on computer science, mathematics, library science, information science, cognitive psychology, linguistics, statistics, physics.

by Ben

Quotes to Memorize

This is a global effort we're going to have to lead [in order] to overcome this jihadist effort. It's more than Osama bin Laden. But he is going to pay, and he will die.
-Mitt Romney

I suppose I could have stayed home and baked cookies and had teas, but what I decided to do was to fulfill my profession which I entered before my husband was in public life.
-Hillary Clinton

I took the initiative in creating the internet.
-Al Gore

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