SISO Space Reference FOM - Tools and Testing

The Simulation Interoperability Standards Organization (SISO) Space Reference Federation Object Model (SpaceFOM) version 1.0 is nearing completion. Earlier papers have described the use of the High Level Architecture (HLA) in Space simulation as well as technical aspects of the SpaceFOM. This paper takes a look at different SpaceFOM tools and how they were used during the development and testing of the standard.The first organizations to develop SpaceFOM-compliant federates for SpaceFOM development and testing were NASA's Johnson Space Center (JSC), the University of Calabria (UNICAL), and Pitch Technologies.JSC is one of NASA's lead centers for human space flight. Much of the core distributed simulation technology development, specifically associated with the SpaceFOM, is done by the NASA Exploration Systems Simulations (NExSyS) team. One of NASA's principal simulation development tools is the Trick Simulation Environment. NASA's NExSyS team has been modifying and using Trick and TrickHLA to help develop and test the SpaceFOM.The System Modeling And Simulation Hub Laboratory (SMASH-Lab) at UNICAL has developed the Simulation Exploration Experience (SEE) HLA Starter kit, that has been used by most SEE teams involved in the distributed simulation of a Moon base. It is particularly useful for the development of federates that are compatible with the SpaceFOM. The HLA Starter Kit is a Java based tool that provides a well-structured framework to simplify the formulation, generation, and execution of SpaceFOM-compliant federates.Pitch Technologies, a company specializing in distributed simulation, is utilizing a number of their existing HLA tools to support development and testing of the SpaceFOM. In addition to the existing tools, Pitch has developed a few SpaceFOM specific federates: Space Master for managing the initialization, execution and pacing of any SpaceFOM federation; EarthEnvironment, a simple Root Reference Publisher; and Space Monitor, a graphical tool for monitoring reference frames and physical entities.Early testing of the SpaceFOM was carried out in the SEE university outreach program, initiated in SISO. Students were given a subset of the FOM, that was later extended. Sample federates were developed and frameworks were developed or adapted to the early FOM versions.As drafts of the standard matured, testing was performed using federates from government, industry, and academia. By mixing federates developed by different teams the standard could be tested with respect to functional correctness, robustness and clarity.These frameworks and federates have been useful when testing and verifying the design of the standard. In addition to this, they have since formed a starting point for developing SpaceFOM-compliant federations in several projects, for example for NASA, ESA as well as SEE

Definition and Representation of Requirement Engineering/Management : A Process-Oriented Approach

Requirements are important in software development, product development, projects, processes, and systems. However, a review of the requirements literature indicates several problems. First, there is confusion between the terms ?requirements engineering? and ?requirements management.? Similarities and/or differences between the two terms are resolved through a literature review; resulting in comprehensive definitions of each term. Second, current literature recognizes the importance of requirements but offers few methodologies or solutions for defining and managing requirements. Hence, a flexible methodology or framework is provided for defining and managing requirements. Third, requirements methodologies are represented in various ways, each with their respective strengths and weaknesses. A tabular view and hybrid graphical view for representing the requirements process are provided

Development and application of computer software techniques to human factors task data handling problems Final report, 21 Jun. 1965 - 21 Jun. 1966

Computer software techniques applied to human factors task data handling problem

A methodology for producing reliable software, volume 1

An investigation into the areas having an impact on producing reliable software including automated verification tools, software modeling, testing techniques, structured programming, and management techniques is presented. This final report contains the results of this investigation, analysis of each technique, and the definition of a methodology for producing reliable software

Satisfying Four Requirements for More Flexible Modeling Methods: Theory and Test Case

Recent research in conceptual modeling and enterprise modeling calls for relaxing common assumptions about the nature of modeling methods and related modeling languages and metamodels. This paper pursues that goal by proposing a new vision of modeling methods that overcomes some of the limitations identified in the literature by satisfying four requirements for more flexible modeling methods. That vision builds upon the integration of multiple modeling techniques that are related to an overarching metaphor. Those techniques may address heterogeneous purposes such as specifying a system’s capabilities or specifying which resources are used by specific activities. This paper presents design characteristics and metamodel design options to guide method engineers in adopting this broader notion of modeling methods, integrating multiple modeling techniques, and using appropriate modeling languages. To demonstrate feasibility, an extended version of the work system method (WSM) is presented in the form of a Work System Modeling Method (WSMM) that encompasses seven purposes of modeling that call for successively more formal approaches. A final section summarizes how WSMM addresses the issues and requirements from the introduction, explains how coherence is maintained within WSMM, and identifies areas for future research, with emphasis on ways to make WSMM and similar modeling methods as valuable as possible

Design and implementation of a workflow for quality improvement of the metadata of scientific publications

In this paper, a detailed workflow for analyzing and improving the quality of metadata of scientific publications is presented and tested. The workflow was developed based on approaches from the literature. Frequently occurring types of errors from the literature were compiled and mapped to the data-quality dimensions most relevant for publication data – completeness, correctness, and consistency – and made measurable. Based on the identified data errors, a process for improving data quality was developed. This process includes parsing hidden data, correcting incorrectly formatted attribute values, enriching with external data, carrying out deduplication, and filtering erroneous records. The effectiveness of the workflow was confirmed in an exemplary application to publication data from Open Researcher and Contributor ID (ORCID), with 56\% of the identified data errors corrected. The workflow will be applied to publication data from other source systems in the future to further increase its performance

The Role of Five-Letter Words in Literature: An X-Area in New Translation Studies

Taboo or in general term ‘forbidden words’ plays a key role in literature through times. Heretofore, Translation of taboo or forbidden words in literature is a pivotal task to do. According to Allan and Burridge (2006), “taboo refers to a proscription of behavior for a specifiable community of one or more persons, at a specifiable time, in specifiable contexts (p. 11).” Taboo words in New Translation Studies (NTS) amplifies its significant influence in source-target amalgamation. This is due to the fact that translations either source-based or target-based tend to be homogenized so as to transfer the near essence of the text. In this connection, the way of translating taboo in literary texts is of crucial importance. Most of the translators resort to the natural equivalence or one-to-one correspondence for the ease of the target reader. Translating in accordance with the source regulations or the target ones is not the absolute license dealing with taboo or forbidden words. Translators should consider the void or X-area between the source and the target language in order to decipher the underlying potential in Source-Target translation. This study seeks to clarify the meaning of this X-area in New Translation Studies in literary phrases and texts. To better understand it, this article scrutinizes four utmost important approaches. The intended approaches are (1) language persistency, (2) language sensitivity, (3) the role of the decoding ability, and (4) Equimediation paradigm which inspect equivalents either deeply or superficially so as to persuade the audience on their workability, feasibility, and practicality. DOI: 10.5901/mjss.2015.v6n1s1p49

Experimenters' reference based upon Skylab experiment management

The methods and techniques for experiment development and integration that evolved during the Skylab Program are described to facilitate transferring this experience to experimenters in future manned space programs. Management responsibilities and the sequential process of experiment evolution from initial concept through definition, development, integration, operation and postflight analysis are outlined and amplified, as appropriate. Emphasis is placed on specific lessons learned on Skylab that are worthy of consideration by future programs

MSFC Skylab experimenter's reference

The methods and techniques for experiment development and integration that evolved during the Skylab Program are described to facilitate transferring this experience to experimenters in future manned space programs. Management responsibilities and the sequential process of experiment evolution from initial concept through definition, development, integration, operation and postflight analysis are outlined in the main text and amplified, as appropriate, in appendixes. Emphasis is placed on specific lessons learned on Skylab that are worthy of consideration by future programs

Early aspects: aspect-oriented requirements engineering and architecture design

This paper reports on the third Early Aspects: Aspect-Oriented Requirements Engineering and Architecture Design Workshop, which has been held in Lancaster, UK, on March 21, 2004. The workshop included a presentation session and working sessions in which the particular topics on early aspects were discussed. The primary goal of the workshop was to focus on challenges to defining methodical software development processes for aspects from early on in the software life cycle and explore the potential of proposed methods and techniques to scale up to industrial applications