AFFTC Instruction 99-5, Test and Evaluation Test and Control and Conduct

2002 ◽  
Author(s):  
AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA
Keyword(s):  
Test And Evaluation ◽  
Evaluation Test ◽  
And Control

Use of Low Cost, Low Fidelity Mockups for Preproduction Testing

1983 ◽  
Vol 27 (7) ◽  
pp. 589-591
Author(s):  
Carole A. Bohn
Keyword(s):  
New Technologies ◽  
Low Cost ◽  
Rapid Development ◽  
Test Methods ◽  
Current Approach ◽  
Operating Modes ◽  
Test And Evaluation ◽  
Methods Development ◽  
Display Technology ◽  
And Control

The new technologies proposed and/or retrofitted into Navy crewstations have demonstrated increasing sophistication and flexibility. Additionally, the crewstation technologies have shown very rapid development cycles. The current approach of reliance solely on flight testing has proven inadequate because of the multitude of equipment operating modes, lack of experimental control of situational variables, possible location/placement of components, variety of operational environments, dynamic crew tasking, and control/display technology unique characteristics. Test methods and relevent criteria are lacking. A quick fix is the use of low fidelity mockups for rapid testing and methods development. Such an approach can be both effective with respect to test dollars and responsive to the dynamics of the control/display development cycle. The present paper discusses the use of the low fidelity simulation in two specific developments. The first example presents the design of formats for a universal control/display layout to be used as a replacement for conventional pushbutton technology. The second example presents testing designed to determine the amount and type of control/display required for a crewstation functional upgrade. Both examples are from the test and evaluation work being performed on Navy patrol aircraft. Finally, a laboratory will be described which is being developed to permit this approach to testing.

Test and Evaluation of an Air Force Non-Developmental Item (NDI) Computer System

1988 ◽  
Vol 32 (17) ◽  
pp. 1162-1165
Author(s):  
Robert Simon ◽  
Martha A. Schmidt ◽  
Nancy Courville
Keyword(s):  
Air Force ◽  
System Development ◽  
System Level ◽  
Human Factors Engineering ◽  
Standard View ◽  
Test And Evaluation ◽  
Performance Requirements ◽  
Computer Based ◽  
Commercial Off The Shelf ◽  
And Control

The Air Force is fielding a computer-based command and control system to support fighter base mission requirements. The acquisition strategy for this system was to purchase it as a Non-Developmental Item (NDI). Since the hardware and software were in the Air Force inventory, it was determined that system development was not necessary. Initial implementation and installation occurred without system-level specifications or performance requirements. This paper presents the results of a Human Factors Engineering evaluation of the system from three perspectives: an Expert's view, a Military Standard view, and a User's view. Two primary lessons resulted from the evaluation: First, the multi-perspective evaluation technique is valuable and highly recommended for use in other HFE evluations. Second, the purchase of NDI or commercial off-the-shelf (COTS) items should be viewed from the systems perspective, i.e., even though subsystems may be NDI, the system may be developmental.

scholarly journals The use of multimodal tips in lexical inferencing of English as a foreign language

2020 ◽  
Vol 19 (1) ◽  
pp. 15-38
Author(s):  
Patricia Nora de Souza Reis ◽  
Renata Bittencourt Procópio ◽  
Rachel Terrigno Cunha Reis
Keyword(s):  
Foreign Language ◽  
Vocabulary Learning ◽  
Analysis Data ◽  
Control Group ◽  
Memory Retention ◽  
Test And Evaluation ◽  
Lexical Inferencing ◽  
Group A ◽  
Group B ◽  
And Control

The present work is an exploratory study aimed at investigating the use of multimodal tips in the lexical inferencing of English as a foreign language. On theoretical grounds, the work is based on the assumptions of Connectionism Approach and Lexical Inferencing. In the experiment,162 students of English at the elementary level, were divided into two groups: experimental and control group. In the experimental group, Group A received oral and written tips, group B received only oral tips, and group C only written tips to infer the meaning of the target vocabulary. In the control group, group D did not receive any tips. In the analysis, data generated in the vocabulary test and evaluation questionnaire were considered. The results show that the use of both modalities of tips, oral or written, may contribute to inferencing and vocabulary learning. However, the combined use of oral and written tips revealed to be more efficient. Besides, in the comparative condition, the relevance of oral tips, in an explicit approach, for inferencing and vocabulary learning was observed. With this research, we intend to contribute to the students’ development of lexical inferencing and memory retention of the vocabulary in English as a Foreign Language. 

Meaningful Assessments of Simulator Performance and Sickness: Can't Have One without the Other?

1997 ◽  
Vol 41 (2) ◽  
pp. 1089-1093 ◽  
Author(s):  
Alvah C. Bittner ◽  
Brian F. Gore ◽  
Becky L. Hooey
Keyword(s):  
Performance Assessments ◽  
Statistical Control ◽  
Simulator Sickness ◽  
Display Condition ◽  
Test And Evaluation ◽  
Performance Effects ◽  
Two Phases ◽  
And Performance ◽  
And Control ◽  
Analysis Of Performance

The requirement to evaluate the differential impacts of simulator sickness on performance assessments was explored. Simulator sickness and performance data were analyzed in two phases that indicated: 1) an experimental display condition by age interaction with regard to development of simulator sickness; and 2) associated detrimental effects of simulator sickness on performance. Arguably, these results may be quite disturbing to users, and past users, of simulators for system and other Development, Test and Evaluation efforts (DT&Es). The utility of simulator sickness measures as covariates, in the analysis of performance effects, is demonstrated as a means for their assessment and statistical control. It is strongly recommended that researchers explore and control the potential confounding effects of simulator sickness in order to assure meaningful performance assessments.

Validation of the FLIGHTLAB virtual engineering toolset

2018 ◽  
Vol 122 (1250) ◽  
pp. 519-555 ◽  
Author(s):  
R. W. Du Val ◽  
C. He
Keyword(s):  
User Interfaces ◽  
Structural Control ◽  
Software Tool ◽  
Simulation Software ◽  
Flight Simulation ◽  
Virtual Engineering ◽  
Stability And Control ◽  
Test And Evaluation ◽  
Scripting Language ◽  
And Control

ABSTRACTAs simulation has become an integral part of the overall life-cycle support of aircraft, the need for effective Virtual Engineering (VE) tools to support these activities has increased. FLIGHTLAB is a state-of-the-art, aircraft modelling and simulation software tool, that has been designed to address this need and is widely used in rotorcraft design, analysis, test and evaluation, and full-flight simulation applications. This VE tool supports the development and analysis of both fixed and rotary wing aircraft with an extensive library of modelling components which have been successfully used and validated in numerous, real-world applications. These components provide comprehensive modelling of aerodynamic, structural, control and propulsion disciplines. Analyses include performance, dynamic response, stability and control, airloads, and structural loads. Graphical User Interfaces and an interactive scripting language provide user-friendly operation. This paper describes the capabilities and validation activities that have been undertaken to support the development of the commercial VE toolset FLIGHTLAB over the last 20 years and discusses future rotorcraft challenges that could be addressed by enhancements to current generation VE tools.

ADVANCES REGARDING POWERED PROSTHESIS FOR TRANSTIBIAL AMPUTATION

2015 ◽  
Vol 15 (01) ◽  
pp. 1530001 ◽  
Author(s):  
ROBERT LEMOYNE
Keyword(s):  
Energy Storage ◽  
State Of The Art ◽  
Plantar Flexion ◽  
Compensatory Mechanisms ◽  
Transtibial Amputation ◽  
Test And Evaluation ◽  
Force Depression ◽  
Current State ◽  
Powered Prosthesis ◽  
And Control

The necessity for developing advanced prostheses are apparent in light of projections that the forecast for the number of people enduring amputation will double by the year 2050. The transtibial powered prosthesis that enables positive mechanical work about the ankle during the powered plantar flexion aspect of stance phase constitutes a paradigm shift in available transtibial prostheses. The objective of the review is to advocate the state of the art regarding the transtibial powered prosthesis. The historic origins of the prosthesis and motivations for amputation are clarified. The phases of gait and the compensatory mechanisms and asymmetries inherent with passive transtibial prostheses are described. The three general classes of transtibial prosthesis (passive, energy storage and return and powered prostheses) are defined. Subsystems that are integral to the powered prosthesis are explained, such as the series elastic actuator and control architecture. Gait analysis systems and their role for the test and evaluation of energy storage and return and powered prostheses are demonstrated. Future advanced concepts; such as the integration of titin into novel muscle models that account for force enhancement and force depression including their implications for cutting edge bio-inspired actuators are elucidated. The review accounts for the evolution of the prosthetic device with regards to the scope of transtibial amputation and assesses the current state-of-the-art.

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