## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|EECS262

statistics-lab™ 为您的留学生涯保驾护航 在代写嵌入式网络系统Embedded Networked Systems方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写嵌入式网络系统Embedded Networked Systems方面经验极为丰富，各种代写嵌入式网络系统Embedded Networked Systems相关的作业也就用不着说。

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|The Task Aspect

Tasks coordinate the work by communicating and synchronizing with each other, i.e. tasks are interconnected. The connections are called links and have flow semantics: flow of data messages.

Tasks have an interface consisting of a set of ports, i.e. these are the terminals of the links connecting the tasks. The ports are the only part of a task that is made visible to the outside world: the rest of a task is hidden from the outside world. We distinguish between data input ports and data output ports. All ports have a unique name within the context of the associated task. The input ports have a message queue (FIFO type); this can be used to model different types of synchronization behaviour. Supported are the asynchronous communication (queue size $>0$ ) and synchronous communication (queue size $=0$ ).

Inside the task the ports are visible, and can be associated with communication operations that are defined in the behavioral model. This way, ports can be used to separate the behavioral specification from the inter-task communication topology and synchronization specification.

To facilitate modeling of large scale systems, tasks can be grouped into task groups. Task groups are just a syntactic notation (collections of tasks) and does not influence the execution of tasks (i.e. task groups are “flattened out” from execution point of view), and have an interface consisting of the outer ports. This modeling mechanism allows a designer to organize the model content in a hierarchical way. Hierarchical modeling will reduce the complexity of a model and can capture valuable structural design information. The tasks at the bottom of the hierarchy represent the sequential parts of the system.

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|The Behavioral Aspect

The behavioral aspect is covered by a behavioral model. A behavioral model is used to specify the functional behaviour of a task. For this purpose, it uses similar semantics as a UML activity diagram [10]. However, the behavioral model does not support fork () /join() and barrier constructs, as these constructs are associated with modeling (dynamic) concurrency and covered by the task model. The behavioral model only captures purely sequential behaviour inside a task.

A behavioral model consists of exactly one behavioral diagram. A behavioral diagram specifies a sequence of operations. A behavioral model must have exactly one entry point and one or more exit points. Control flows specify the sequencing of the operations. A control flow is always associated with two (not necessarily distinct) operations: a source operation and a destination operation. Hence, a control flow has a direction. Operations must have one or more control flows leaving that operation and zero or more control flows entering that operation. Control flows may have conditional expressions involving data variables associated with them. Whenever an operation is finished, the control flow whose condition evaluates ‘true’ is taken to determine the next operation to execute. It is the responsibility of the system modeler that exactly one of the control flows leaving an operation can be taken if the operation finishes. If none or more than one of the leaving control flows can be ‘taken’, an error will result during simulation.

Continuing on the model of our simple application, Fig. 1.4 shows the behavioral specification associated with task ‘convertData’.

The behavioral aspect supports different types of operations. Supported operation types are the processing operation, the communication operation (either send or receive) and the delay operation.

A processing operation performs a certain calculation involving a specified number of integers and floating point instructions.

## 广义线性模型代考

statistics-lab作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|SE5201

statistics-lab™ 为您的留学生涯保驾护航 在代写嵌入式网络系统Embedded Networked Systems方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写嵌入式网络系统Embedded Networked Systems方面经验极为丰富，各种代写嵌入式网络系统Embedded Networked Systems相关的作业也就用不着说。

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|System Models

Using models in modern engincering disciplincs is a common practice. This mainly has to do with the fact that the use of models is very attractive from an efficiency and economic point of view. Models are faster and cheaper to construct and easier to manipulate than the real (physical, full-scale) artifacts they describe. In experimental setups, models can be subjected to stimuli and conditions that would not be feasible or just be too dangerous to carry out with the real artifact.

Nowadays, computer models are used in many engineering disciplines to analyze and predict the behaviour of the systems they describe. Engineers use dedicated programs to interactively create and manipulate the models and to simulate/evaluate the behaviour of the systems using various test scenarios.

We can make a distinction here between informal models and formal models. Informal models are built from elements and use constructs that are at best informally documented. Alternatively, formal models are constructed using modeling elements, follow construction rules, and conform to constraints that are strictly and explicitly defined in a formal language and associated with well-defined execution semantics. The modeling elements constitute the ‘alphabet’ of the formal modeling language, while the possible relations and construction rules between the modeling elements are the language syntax.

Informal models are sometimes used to sketch preliminary design ideas or to convey design ideas among designers. The semantics of the modeling elements is not strictly defined and mostly left to the individual interpretation of designers. Often, this leaves room for both ambiguities and inconsistencies between interpretations among different designers. At best, these models are stored in a document oriented way.

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|Multi-aspect Modeling

When using model-based design methodologies formal modeling languages can be defined such that they allow the description of a target system using multiple system aspects.

A system aspect, or system view, is a way to look at or describe a system as a whole. Each system aspect has its own associated semantic domain and can provide an exhaustive description of the system, but only from that particular point of view. Different groups of users of a system may consider completely different aspects of that system. For example, an accounts clerk will have a completely different view of the companies administrative system than its system developer.
Using multi-aspect modeling framework provides a number of advantages:

• It allows to capture the different ways separate groups of users of a system view that system. Each group of users or stakeholders, has its own concerns with respect to the system to be realized, possibly expressed as a set of requirements in a particular semantic domain (e.g. responsiveness, throughput, energy consumption, dependability, etc.).
• The development of a system typically involves the cooperation of multiple design disciplines. Each discipline will typically be addressed by only a subset of experts of the team.
• The different system aspects are not completely independent, since each aspect ultimately describes the same physical artefact. Each system aspect only offers one angle on the system’s realization. Together, they form an integrated set and collectively offer a complete specification for the realization of the system.
• Design decisions made in one discipline can have consequences in other disciplines. Using multi aspect models and the relevant analysis tools make this kind of interdisciplinary design trade-off manageable. (However, it remains a challenge to engineer a multi aspect modeling language such, that the semantics of the different aspects are as orthogonal as possible, that a single point of definition is achieved.) A multi-aspect modeling language will improve the usability of the models and offer greater flexibility in the exploration of design alternatives as the different system aspects in the model can be manipulated more independently.

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|Multi-aspect Modeling

• 它允许以不同的方式捕获系统视图该系统的不同用户组。每组用户或利益相关者对要实现的系统都有自己的关注点，可能表示为特定语义域中的一组需求（例如响应性、吞吐量、能耗、可靠性等）。
• 系统的开发通常涉及多个设计学科的合作。每个学科通常只由团队中的一部分专家解决。
• 不同的系统方面并不完全独立，因为每个方面最终都描述了相同的物理制品。每个系统方面只提供一个系统实现的角度。它们一起形成了一个集成集，并共同为系统的实现提供了完整的规范。
• 在一个学科中做出的设计决策可能会对其他学科产生影响。使用多方面模型和相关分析工具使这种跨学科设计权衡变得易于管理。（然而，设计多方面建模语言仍然是一个挑战，使不同方面的语义尽可能正交，实现单点定义。）多方面建模语言将提高可用性由于模型中的不同系统方面可以更独立地进行操作，因此模型在探索设计备选方案时提供了更大的灵活性。

## 广义线性模型代考

statistics-lab作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|ELEC5514

statistics-lab™ 为您的留学生涯保驾护航 在代写嵌入式网络系统Embedded Networked Systems方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写嵌入式网络系统Embedded Networked Systems方面经验极为丰富，各种代写嵌入式网络系统Embedded Networked Systems相关的作业也就用不着说。

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|Multi-aspect Modeling for Networked

The large scale nature of networked embedded systems (NESs) influences the complexity of the architecture design from two perspectives: the architecture description and the architecture assessment. Challenges for the architecture assessment arise, for example, when dimensioning and characterizing communication channels, or when profiling power consumption and dependability of the system, among others. To cope with architecture assessment challenges, the designer has to employ adequate analysis tools relying on formal specifications of relevant aspects of the design (i.e. models).

Complex systems consist of entities that interact with each other to produce the behaviour of the system as a whole. An important characteristic of a complex system is that the properties and behaviour of the whole are emergent; that is the system level behaviour cannot simply be inferred from the properties and behaviour of the components. Many relatively simple entities interact in relatively simple ways to give rise to emergent phenomena that could not be “visible” from the definition of the entities.

The performance of interactive systems is determined in relation to the context in which the system performs its intended roles. A system that performs well in one context may not perform well in other contexts. While a system’s context may dynamically change, traditionally systems have static designs that allow operation within a limited range of context variations. The book targets systems that are sensitive to changes in the environment they operate in, and are able to adapt to a large range of contexts. The system modeling methodology used to design the system architecture must be able to address adaptivity of the system to a changing environment.

Existing modeling and assessment tools do not meet the system designer’s needs to face the challenges of designing large scale runtime reconfigurable NESs. In the following sections modeling language concepts will be introduced which better meets those needs.

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|Related Work

Many approaches to multi-aspect modeling can be found it the literature. Some of them target specific application domains, while others are more general purpose.

For example, RM-ODP (Reference Model-Open Distributed Processing), a reference model introduced in the eighties as the result of a cooperative effort by the ISO (International Standards Organization) and ITU-T (International Telecommunication Union) [2-5]. RM-ODP provides a framework through which analyzing, describing and specifying a system from different perspectives, called viewpoints. Each of these viewpoints tends to satisfy a different audience concerned with specific aspects of the system. Associated with each of the viewpoints, a specialized language is defined that includes the vocabulary and the expressions of the particular audience to which it is addressed.

Another example is the Architecture Analysis and Design Language (AADL), which was standardized by the Society of Automotive Engineers (SAE) [6]. AADL defines a language for describing both the software architecture and the execution platform architectures of performance-critical, embedded, real-time systems. An AADL model describes a system as a hierarchy of components with their interfaces and their interconnections. Properties are associated to these constructions. AADL components fall into two major categories: those that represent the physical hardware and those representing the application software.

SysML is a general-purpose modeling language for systems engineering that supports the specification, analysis, design, verification and validation of a broad range of complex systems, including hardware, software, information, processes, personnel and facilities [7]. It uses a subset of UML $2.1$ and provides additional extensions needed to fulfill the requirements for the modeling language specified by the SE DSIG (Systems Engineering Domain Special Interest Group) of the OMG.
However, all these multi-aspect modeling approaches lack the possibility to describe the dynamic reconfiguration aspects of a system. The DEMANES multiaspect modeling language differs from the previous approaches, in that it contains language constructs that can effectively capture the dynamic reconfiguration behaviour of a system. This will be further discussed in Sect. $1.4$

## 电子工程代写|嵌入式网络系统代写Embedded Networked Systems代考|Related Work

SysML 是一种用于系统工程的通用建模语言，它支持广泛的复杂系统的规范、分析、设计、验证和确认，包括硬件、软件、信息、流程、人员和设施 [7]。它使用 UML 的一个子集2.1并提供满足 OMG 的 SE DSIG（系统工程领域特别兴趣组）指定的建模语言要求所需的额外扩展。

## 广义线性模型代考

statistics-lab作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。