Uml hardware software mapping

That which theyshare in common is the functionality of the system—what the systemdoes. A significant issue in system integration, even assuming thehardware and software integrate without any problem, is that theperformance may not be adequate.

Moreover, even if it is adequate atthe outset, version 2. And here we are,back at the partitioning problem. Build a SingleApplication Model: The functionality of the system can beimplemented in either hardware or software. It is thereforeadvantageous to express the solution in a manner that is independent ofthe implementation. The specification should be more formal thanEnglish language text, and it should raise the level of abstraction atwhich the specification is expressed, which, in turn, increasesvisibility and communication.

The specification should be agreed uponby both hardware and software teams, and the desired functioningestablished, for each increment, as early as possible. Build anExecutable Application Model: Indeed, the specification shouldbe executable. This action model wasexpressly designed to be free of implementation decisions and to allowtransformation into both hardware and software. Executable applicationmodels enable earlier feedback on desired functionality. Don't ModelImplementation Structure: This follows directly from the above.

If the application model must be translatable into either hardware orsoftware, the modeling language must not contain elements designed tocapture implementation, such as tasking or pipe-lining.

At the same time, the modeling language must be rich enough to allowefficient implementations. Chief among the topics here is concurrency,both at the macro level several threads of control as tasks orprocessors and blocks of logic that execute concurrently and at themicro level several elements in a computation executing at once. In other words, we need to capture the natural concurrency of theapplication without specifying an implementation.

Map theApplication Model to Implementation: We translate the executableUML application model into an implementation by generating text inhardware and software description languages.

This is accomplished by aset of mapping rules that reads selected elements of the executable UMLapplication model and produces text. The rules, just like a softwarecompiler generating a function call in our example above, establish themechanisms for communicating between hardware and software according tothe same pattern.

Crucially, the elements to be translated into hardware or softwarecan be selected by marking up the application model, which allows us tochange the partition between hardware and software as a part ofexploring the architectural solution space. However, this approach ties the model to a specificimplementation—precisely what we wish to avoid. Instead, we must allowdevelopers to specify functionality without specifying implementation. How can we capture the functionality of the system withoutspecifying implementation?

The trick is to separate the applicationfrom the architecture, and this is the key to a solution. Figure 1, below, illustrates thisseparation.

The top left of Figure 1, above, shows an executable UML model. Below the dotted line we show one of aset of mapping rules that refers to simple UML elements such as class. By executing the rules automatically, we may generate code. But the keyis the dotted line that separates the two parts. This dotted line, consisting of sets, states, andfunctions, captures the modeling language. A selection of these simple elements makes up an executable UMLmodeling language.

The elements are primitive enough to be translatableinto multiple implementations, but powerful enough to be useful. Oncewe determine exactly which elements make up executable UML, we canmanipulate those elements completely independently of the applicationdetails, including whether to implement behavior in hardware orsoftware.

Mellor , Chief Scientist of the Embedded SoftwareDivision at Mentor Graphics , is an internationally recognized pioneerin creating effective, engineering approaches to software development. In , he published the widely read Ward-Mellor trilogy StructuredDevelopment for Real-Time Systems, and in , the first booksdefining object-oriented analysis.

John R. Campbell D. In addition, CortlandStarret t will be conducting a series ofseminars. They show the hierarchy of components or modules and how they connect and interact with each other. These tools offer guidance and ensure that all parts of a system work as intended in relation to all the other parts. The focus here is on dynamic aspects of the software system or process.

These diagrams show the functionality of a system and emphasize on what must happen in the system being modeled. Class diagram. This diagram, the most common type in software development, is used to depict the logical and physical design of a system and shows its classes. It looks similar to a flow chart because the classes are represented with boxes. This diagram offers a visual of the different classes and how they are interrelated, and each class has three compartments:.

Object diagram. Often, this diagram is used as a way to doublecheck a class diagram for accuracy. In other words, will it work in practice? Component diagram. Also known as a component flow diagram, it shows logical groupings of elements and their relationships. In other words, it gives a more simplified view of a complex system by breaking it down into smaller components.

Each of the pieces is shown using a rectangular box, with its name written inside. Composite structure diagram. This is seldom used by anyone outside the software development field. Deployment diagram.

This diagram shows hardware nodes and software artifacts components and their relationships. It offers a visual representation of exactly where each software component is deployed.

Package diagram. This is used to depict the dependencies between the packages that make up a model. The main goal is to show the relationship between the various large components that form a complex system. Profile diagram. This is less like a diagram and more like a language. A profile diagram helps create new properties and semantics for UML diagrams by defining custom stereotypes, tagged values and constraints.

These profiles let you customize a UML metamodel for different platforms e. NET Framework and domains e. Activity diagram. It is represented by a dashed line that ends in an arrow, which indicates that one node or component is dependent on another. A node is a hardware or software object. It is represented by a three-dimensional box. Node is any computational resource upon which artifacts are deployed for execution.

A node is a physical hardware component that can execute one or more software artifacts. Node is an essential UML element that describes the execution of code and the communication between various components of a system.

Nodes help to convey the hardware which is used to deploy the software. Device nodes are physical computing resources. They have processing memory and services to execute software. Examples of device nodes are typical computers or mobile phones.

An execution environment node EEN is a software computing resource that runs within an outer node. It provides services to host and execute other executable software elements.

Here are the steps for the creation of deployment diagrams in the premium drawing software EdrawMax. Modern design and clear layout set this desktop app apart from the rest a proprietary for high demands.

Modelio is the first modeling environment. It is one of the best free UML tools that provides support for a wide range of models and diagrams. It is one of the best UML design tools which has a straightforward and user-friendly interface for easy and fast development. Open ModelSphere is a useful data, process, and engineering modeling tool. It is a platform-independent, tool which supports user interface in English and French languages.

It helps you to manage the complexity many organizations face with product and systems development. It is one of the best free UML tool that allows you to create user stories and offers wireframe support. UML Diagram is a design standard that is mainly used for creating object-oriented and meaningful documentation models for any software system present in the real world.

Skip to content. You should consider the following factors while choosing the best UML diagram software: It should allow you to create multiple types of diagrams Easy to use user interface Customizations offered Features and functionalities offered Collaboration features Integration with other tools Cross-platform support Templates offered for easy creation of diagrams Presentation features Import-Export functionality to various file formats.

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