functional specification
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2022 ◽  
Vol 40 (1) ◽  
pp. 155-212
Author(s):  
Nathalie Myara

More than 45 years of IEP/TP research and a few focused on IEP/TP functions or roles. Yet, the quality of an IEP/TP relies on the functions that it fulfills to satisfy the needs of its different users (Petitdemange,1985). The Quebec Ministry of Education (MEQ, 2004) and the Office of Special Education and Rehabilitative Services within the U.S. Department of Education (in Eichler, 1999) explicitly identified and described six to seven IEP/TP functions. However, a literature review and practising environments highlighted a greater number of functions. The goal of this research is to identify the different functions that an IEP/TP should fulfill in regard to the different needs of its diverse users. With the use of pedagogical value analysis method (PVA), results show a synthesis of more than 700 functions organized in an IEP/TP Functional Specification Matrix (FSM). The IEP /TP FSM is useful to create, monitor and evaluate IEP/TPs.


Author(s):  
Anatoly A. Prihozhy

The problem of synthesis and optimisation of logical reversible and quantum circuits from functional descriptions represented as decision diagrams is considered. It is one of the key problems being solved with the aim of creating quantum computing technology and quantum computers. A new method of stepwise transformation of the initial functional specification to a quantum circuit is proposed, which provides for the following project states: reduced ordered binary decision diagram, if-decision diagram, functional if-decision diagram, reversible circuit and quantum circuit. The novelty of the method consists in extending the Shannon and Davio expansions of a Boolean function on a single variable to the expansions of the same Boolean function on another function with obtaining decomposition products that are represented by incompletely defined Boolean functions. Uncertainty in the decomposition products gives remarkable opportunities for minimising the graph representation of the specified function. Instead of two outgoing branches of the binary diagram vertex, three outgoing branches of the if-diagram vertex are generated, which increase the level of parallelism in reversible and quantum circuits. For each transformation step, appropriate mapping rules are proposed that reduce the number of lines, gates and the depth of the reversible and quantum circuit. The comparison of new results with the results given by the known method of mapping the vertices of binary decision diagram into cascades of reversible and quantum gates shows a significant improvement in the quality of quantum circuits that are synthesised by the proposed method.


2021 ◽  
Vol 2131 (3) ◽  
pp. 032111
Author(s):  
Gurru Akperov ◽  
Ilgar Alekperov ◽  
Anastasia Gorbacheva ◽  
Imran Magerramov ◽  
Anatoly Bocharov

Abstract Selection of an optimal route within the intelligent approach provides for the possibility of applying soft models and computing in estimation of the trainee presence in the knowledge space. Among numerous ways of representation and processing of information of this type, the special place is held by those able to adapt to the maximal number of NO factors, characterizing the actual training situations, their measurable data and actual methods and ways of their processing that have ambiguities, uncertainties and incompleteness of the respective models and methods. In this paper, we suggest to extend the certain well-proven best practices in data analysis and transformation in the training environment information space to solving the actual training management problems. In addition, the paper demonstrates approaches to the use of Pareto-optimal approaches for fuzzy and underdetermined situations in actual training processes. Formally, this problem is solved with a fuzzy systemic graph. Variants of calculating procedures, allowing the use of the available apparatus of soft models and computing with the purpose to eliminate uncertainties when forming grounded decisions, are given. Methods and criteria of route options selection with regard of vaguely defined functional specification requirements have been developed pursuant to the study.


2021 ◽  
Vol 72 (2) ◽  
pp. 465-474
Author(s):  
Viktoriia Zhukovska

Abstract This article reports on the quantitative corpus-based investigation into the form-function interplay of the English detached adjectival construction with an explicit subject. Taking Usage-based Construction Grammar as its theoretical framework, this paper investigates the patterns of attraction of lexical items that appear in the main slots of the grammatical construction. The data obtained substantiate the constructional status of the construction and determine its semantic and functional specification in present-day English.


2021 ◽  
Vol 12 ◽  
Author(s):  
Anton Kamnev ◽  
Claire Lacouture ◽  
Mathieu Fusaro ◽  
Loïc Dupré

Motility is a crucial activity of immune cells allowing them to patrol tissues as they differentiate, sample or exchange information, and execute their effector functions. Although all immune cells are highly migratory, each subset is endowed with very distinct motility patterns in accordance with functional specification. Furthermore individual immune cell subsets adapt their motility behaviour to the surrounding tissue environment. This review focuses on how the generation and adaptation of diversified motility patterns in immune cells is sustained by actin cytoskeleton dynamics. In particular, we review the knowledge gained through the study of inborn errors of immunity (IEI) related to actin defects. Such pathologies are unique models that help us to uncover the contribution of individual actin regulators to the migration of immune cells in the context of their development and function.


2021 ◽  
Vol 5 (OOPSLA) ◽  
pp. 1-29
Author(s):  
Paul He ◽  
Eddy Westbrook ◽  
Brent Carmer ◽  
Chris Phifer ◽  
Valentin Robert ◽  
...  

Verifying imperative programs is hard. A key difficulty is that the specification of what an imperative program does is often intertwined with details about pointers and imperative state. Although there are a number of powerful separation logics that allow the details of imperative state to be captured and managed, these details are complicated and reasoning about them requires significant time and expertise. In this paper, we take a different approach: a memory-safe type system that, as part of type-checking, extracts functional specifications from imperative programs. This disentangles imperative state, which is handled by the type system, from functional specifications, which can be verified without reference to pointers. A key difficulty is that sometimes memory safety depends crucially on the functional specification of a program; e.g., an array index is only memory-safe if the index is in bounds. To handle this case, our specification extraction inserts dynamic checks into the specification. Verification then requires the additional proof that none of these checks fail. However, these checks are in a purely functional language, and so this proof also requires no reasoning about pointers.


Microbiome ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Wisnu Adi Wicaksono ◽  
Tomislav Cernava ◽  
Christian Berg ◽  
Gabriele Berg

Abstract Background Bogs are unique ecosystems inhabited by distinctive, coevolved assemblages of organisms, which play a global role for carbon storage, climate stability, water quality and biodiversity. To understand ecology and plant–microbe co-occurrence in bogs, we selected 12 representative species of bryophytes and vascular plants and subjected them to a shotgun metagenomic sequencing approach. We explored specific plant–microbe associations as well as functional implications of the respective communities on their host plants and the bog ecosystem. Results Microbial communities were shown to be functionally adapted to their plant hosts; a higher colonization specificity was found for vascular plants. Bryophytes that commonly constitute the predominant Sphagnum layer in bogs were characterized by a higher bacterial richness and diversity. Each plant group showed an enrichment of distinct phylogenetic and functional bacterial lineages. Detailed analyses of the metabolic potential of 28 metagenome-assembled genomes (MAGs) supported the observed functional specification of prevalent bacteria. We found that novel lineages of Betaproteobacteria and Actinobacteria in the bog environment harboured genes required for carbon fixation via RuBisCo. Interestingly, several of the highly abundant bacteria in both plant types harboured pathogenicity potential and carried similar virulence factors as found with corresponding human pathogens. Conclusions The unexpectedly high specificity of the plant microbiota reflects intimate plant–microbe interactions and coevolution in bog environments. We assume that the detected pathogenicity factors might be involved in coevolution processes, but the finding also reinforces the role of the natural plant microbiota as a potential reservoir for human pathogens. Overall, the study demonstrates how plant–microbe assemblages can ensure stability, functioning and ecosystem health in bogs. It also highlights the role of bog ecosystems as a playground for plant–microbe coevolution.


2021 ◽  
Vol 6 (1) ◽  
pp. 49-55
Author(s):  
Fattah Hadi Saputro ◽  
Mohamad Amin Soetomo

There are projects implementation that have not been run accordance with the objective of desired project. Evaluation Model Framework in project management is very important to get the desire goals such as quality, cost and delivery. The main requirement to start the project implementation is a business case study where investment must be validated with related objectives of the project carried out. Investment in a company is not easy to implement, especially in the planning phase of project management. Nowadays technology is growing rapidly, investment in a company continues growing every year along with the company's business needs to be competitive with appropriate investment. This study aims to propose a new design IT framework on project management, starting alignment business strategy, IT goals, business requirements and business case by validating functional specification based on criteria and the project that have passed business cases meet the expectations of stakeholder needs.


Author(s):  
Simon Foster ◽  
Yakoub Nemouchi ◽  
Mario Gleirscher ◽  
Ran Wei ◽  
Tim Kelly

AbstractAssurance cases are often required to certify critical systems. The use of formal methods in assurance can improve automation, increase confidence, and overcome errant reasoning. However, assurance cases can never be fully formalised, as the use of formal methods is contingent on models that are validated by informal processes. Consequently, assurance techniques should support both formal and informal artifacts, with explicated inferential links between them. In this paper, we contribute a formal machine-checked interactive language, called Isabelle/SACM, supporting the computer-assisted construction of assurance cases compliant with the OMG Structured Assurance Case Meta-Model. The use of Isabelle/SACM guarantees well-formedness, consistency, and traceability of assurance cases, and allows a tight integration of formal and informal evidence of various provenance. In particular, Isabelle brings a diverse range of automated verification techniques that can provide evidence. To validate our approach, we present a substantial case study based on the Tokeneer secure entry system benchmark. We embed its functional specification into Isabelle, verify its security requirements, and form a modular security case in Isabelle/SACM that combines the heterogeneous artifacts. We thus show that Isabelle is a suitable platform for critical systems assurance.


2021 ◽  
pp. ji2001271
Author(s):  
Nayan D. Bhattacharyya ◽  
Claudio Counoupas ◽  
Lina Daniel ◽  
Guoliang Zhang ◽  
Stuart J. Cook ◽  
...  

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