Thesis supervisor: Thomas Schnell. Includes bibliographic references (p. 101-103).

Thesis (M.S. in Systems Technology (Command, Control, and Communications))--Naval Postgraduate School, June 2010. / Thesis Advisor(s): Gallup, Shelley P.; Second Reader: MacKinnon, Douglas J. "June 2010." Description based on title screen as viewed on July 14, 2010. Author(s) subject terms: Machine Autonomy, AVS, USV, UUV, Navy Tactical Task List, Situational Awareness, Congruence Model, Decision Superiority, Maritime ISR. Includes bibliographical references (p. 49-51). Also available in print.

Enterprise Modelling (EM) tools are an important part ofevery EM application project. Continuous evolution of modellingmethods therefore requires efficient EM tool support. Extensiveefforts have been devoted to developing new EM tools andmodelling techniques. Considerably less attention has been paidto the aspects of acquiring and introducing EM tools inorganisations. Our grounded theory study shows that thisprocess is far from simple. It is determined by theorganisation's intentions regarding EM and by the situation inthe EM user organisation. As a contribution to this, we presentan EM tool acquisition process, which focuses on selecting anappropriate EM tool acquisition scenario for an organisation.This process has the following stages - assessing theorganisation, choosing an EM tool acquisition strategy, andfollowing the EM tool acquisition strategy. We support theprocess of evaluating the situation at hand by providingguidelines for assessing intentional and situational factorsthat influence the use of EM tools. We also outline EM itself, along with its applicationprocess, and describe possible sources for gathering therequirements for an EM tool-set. Major requirements categoriesare discussed and analysed with respect to the goals andproblems regarding EM tools. Each category of requirements canbe satisfied to a certain degree, depending on theorganisational needs and various situational factors. This grounded theory study provides two main contributions.Firstly, it proposes a systematic approach for EM toolacquisition supported by a set of guidelines.The approachenables an organisation to assess its needs of EM tools and itsown appropriateness for EM tool usage. As a result, an EM userorganisation is able to choose an EM tool acquisition strategythat meets the situation it faces. This is a contribution tothe overall success of practical use of EM methods and tools.Secondly, it provides an important baseline for future researchand theory building within the area of EM tool adoption andapplication. It also gives valuable information andrequirements for development of new EM tools and relatedservices. / <p>NR 20140805</p>

In South Africa, there has been a steady increase in the number of armed robberies within the retail industry which have many negative consequences for the victims, their families, and the community. Materialism and economic advantage are major factors, as these robberies are very lucrative, although socio-economic factors such as unemployment, poverty, and relative deprivation can also contribute to the phenomenon. The climate of violence prevalent in South Africa, the ineffectiveness of the criminal justice system, as well as the availability of illegal firearms also contributes to this climate of lawlessness. The intense fear aroused by these robberies, as well as the extent of this crime necessitates empirical research in this regard. A literature search of South African databases reflects that no specific research regarding retail robberies has been undertaken. In order to fill this void, it was decided to investigate the modus operandi of retail robbers from the victims' perspective, as well as relevant situational factors, victim reactions and the consequences of these robberies. The Model of the victim's experience after a retail robbery (see Figure 2) was formulated to serve as a theoretical framework to give direction to the study and interpret the findings. In order to actualise the set research expectations, various victims of retail robberies within Gauteng were selected to participate in this study. The sample was drawn according to the purposive theoretical and snowball sampling methods. The sample consisted of 20 victims. Individual interviews were conducted with these respondents. Upon analysis and interpretation of the data, it was found that most retail robberies occur in areas with a high crime-rate. The main reason for the selection of a specific target seems to be the obtaining of money. The findings further indicate that retail robberies are committed by groups of offenders who predominantly make use of handguns during these robberies and usually have getaway vehicles waiting outside the stores. It was also apparent in the study that verbal threats and violence are usually employed during retail robberies in order to ensure compliance by the victims and that victims are less likely to resist if the offenders are armed with firearms. Findings indicate that the robbers become more aggressive when resisted and that aggression is influenced by the size of the group. The findings further show that stores with few customers are more likely to become the victims of retail robberies. It was found that security measures such as armed response, alarms and panic buttons do not necessarily deter retail robbers, but most stores improved their security following a robbery. Stores with no surveillance appear to be more vulnerable. Another situational factor pertinent to the study was that most of the stores' interiors were visible to passers-by from the outside. Finally, the impact of retail robberies upon the lives of the victims in terms of financial, physical, emotional and social consequences was also investigated. Based on the findings, recommendations are made with regard to further research. Stemming from this, various suggestions concerning the prevention of retail robberies are also made. / Dissertation (MA (Criminology))--University of Pretoria, 2006. / Social Work and Criminology / unrestricted

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As a low fidelity work simulation, Situational Judgment Tests (SJTs) are an affordable and practical way of empirically linking training and on-the-job performance, thereby providing a viable means of evaluating training effectiveness. An issue, when utilizing SJTs, is deciding the appropriate manner in which the SJT should be scored. Traditional SJT scoring methodologies, while successfully utilized for selection and prediction, pose specific challenges when applied to a SJT designed to evaluate the effectiveness of a training program. This study discusses the shortcomings of traditional SJT scoring methodologies when used in the evaluation context. To overcome these challenges, an innovative scoring methodology, the Hybrid methodology, is presented. This study provides the detailed description of the Hybrid scoring key creation, and compares the Hybrid scoring key with two traditional scoring keys (Subject Matter Expert (SME) and Respondent-based scoring keys). Responses from a military training program are utilized to illustrate the distinctive effects of using the three different scoring approaches. The superiority of the hybrid scoring key, due to increased confidence in the key's accuracy, and findings regarding training evaluation are discussed. Future research directions and practical applications of the research are also discussed. / Master of Science

Typical algorithms for processing unresolved space imagery from optical systems make broad assumptions about the expected behavior of the sensors during collection. While these techniques are often successful at data reduction for a particular mission, they rarely extend to sensors in different operating modes. Such specialized techniques therefore reduce the number of sensors able to contribute imagery. By approaching this problem with analysis of the fundamental dynamic equations and geometry at play, we can gain a deeper understanding into the behavior of both stars and space objects viewed through optical sensors. This type of analysis has the potential to enable data collection from a wider variety of sensors, increasing both the quantity and quality of data available for space object catalog maintenance. This dissertation will explore the implications of this approach to unresolved data processing. Sensor-level motion descriptions will be derived and applied to the problem of space object discrimination and tracking. Results of this processing pipeline as applied to both simulated and real optical data will be presented. / Ph. D.

Mental toughness (MT) has been shown to predict outcomes across a variety of high-stress contexts such as athletics, the military, and the workplace. Despite this, researchers have struggled to reach consensus regarding how best to conceptualize and measure MT. Specifically, MT assessments have focused on measuring general MT rather than domain-specific MT. The current study proposes a measurement model of MT grounded in social-cognitive theory and introduced an assessment of MT within a situational judgment test framework to assess MT in the workplace. Participants completed a battery consisting of the new measure as well as measures intended to establish construct validity. Factor analyses suggested a three-factor solution fit the data best. Furthermore, cross-structure analyses indicated that the new assessment avoided common-method bias in responding, as evident by weak correlations with measures of other constructs. / Master of Science / Mental toughness (MT) has been shown to be a resource that buffers against the negative effects of distress and predicts outcomes across a variety of settings, including the workplace. However, widely used self-report MT questionnaires have numerous issues, such as a lack of context. The current study addressed a number of these issues by creating a measure of MT wherein respondents were given a workplace situation and asked the likelihood that they would respond in a variety of manners, thereby assessing MT as relevant to the workplace context. Three factors of MT were most prominent – task persistence, emotional control, and utilization of feedback. The measure introduced in the current study had small associations with existing self-report measures of MT, personality, and distress, suggesting that the new method of measuring MT avoided some issues inherent to self-report responding. This research laid promising groundwork for the future assessment of MT in the workplace.