Componentandconnector structures help answer questions such as what are. It can either be an informal way of saying component diagram or, alternatively, could be a generic reference to some other sort of informal diagram blocks and lines, for instance. Component object model ocxactivexcom and dcom from microsoft. Software architecture foundations, theory, and practice what is a software connector.
A uml profile for documenting the component and connector views of software architectures 3. A software architecture must describe its group of components, their connections, interactions among them and deployment configuration of all components. To support rapid software evolution, it is desirable to construct software systems from reusable components. Lecture 7 software connectors component based software. Components are principal units of runtime interaction and data stores. Component and connector view in software architecture.
Architecture description languages adl describe systems as a collection of components that interact with each other using connectors. A logical thread is a sequence of computation that can be allocated to a separate physical thread later in the design process. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Overview the componentandconnector viewtype from documenting software architecturesc views and beyond. Software connectors and their role in component deployment. Simply put, software connectors perform transfer of control and data among components.
Tascs scidac center for technology for advanced scientific component software. Each view addresses a set of system concerns, following the conventions of its viewpoint, where a viewpoint is a specification that describes the notations, modeling, and analysis techniques to use in a view that expresses the architecture. Component diagram shows components, provided and required interfaces, ports, and relationships between them. Uml is one of objectoriented solutions used in software modeling and design. Connectors can also provide services, such as persistence, invocation, messaging, and transactions, that are largely independent of the interacting components functionalities. These components tie the complete software architecture to a specific platform and thus hamper reuse. If you continue browsing the site, you agree to the use of cookies on this website. Software engineering component and connector structure views elements components encapsulated and replaceable system elements that have runtime behavior connectors pathways of interaction between components. A software connector is an architectural building block tasked with effecting and regulating interactions among components taylor, medvidovic, dashofy. A software architecture can be defined in many ways. A component diagram has a higher level of abstraction than a class diagram.
The componentandconnector viewtype is specialized by numerous styles. Feb 16, 2011 software connectors software architecture lecture 7 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Its description defines what the component can do and what it requires to do that job. Oct, 2017 it also explains very highlevel when a component and connector model satisfies a component and connector view, and what satisfaction witnesses are. Component web platform for modular js, css, and other assets. A structure is the set of elements itself, as they exist in software or hardware. Uml component diagram shows components, provided and required.
Nary the no of arguments a function can take asymmetric vs. Recently i started learning software architecture and it talks about architecture components and connectors and an uml2 diagram type is also called component diagrams could anyone tell the difference between those two or provide a link that does explain it. Swe 443 software architecture views and styles 2 outline. The component and connector viewtype is specialized by numerous styles. The component and connector viewtype enables the representation of a software architecture from the point of view of its components, the principal unit of runtime interaction or data storage, and. A uml profile for documenting the componentandconnector. This component and connector structure allows the architect to determine opportunities for parallelism and the locations where resource contention may occur. Connector component components provide applicationspecific functionality connectors provide applicationindependent interaction mechanisms interaction abstraction andor parameterization specification of complex interactions binary vs. Thus, assuming that both clientserver and shareddata styles are important to understanding the system, views in both styles will include the same component, showing different patterns of interaction.
While early versions of uml have been adequate for documenting many kinds of architectural views, they have fallen somewhat short, particularly for documenting component and connector views. The units are components and the connectors are logical threads. The software architecture of a program or computing system is the structure or structures of the system, which comprise software elements, the externally visible properties of those elements, and the relationships among them. The lines between components are often referred to as connectors, the implication being that some sort. Modern software architecture practice embraces the concept of architectural views kruchten. Previous work on software architecture reuse with multiple platforms either requires platformspecific handcrafting or the effort of explicit platform models. A software architecture is defined by a configuration of architectural elementscomponents, connectors, and dataconstrained in their relationships in order to achieve a desired set of architectural properties. Often, these interactions are carried out using complex infrastructure, such as middleware frameworks, distributed communication channels, and process schedulers. Transforming platformindependent to platformspecific. Each component is isolated from performance of upstream component. Relations in uml notation components have ports with associated connector roles ports have associated interfaces. Styles of the componentandconnector viewtype part i.
Pdf transforming platformindependent to platformspecific. An explicit definition of connectors for componentbased software. The other two are the module decomposition view and the allocation view. Software architecture descriptions are commonly organized into views, which are analogous to the different types of blueprints made in building architecture. Documenting component and connector views with uml 2. This type of diagrams is used in component based development cbd to describe systems with serviceoriented architecture soa. Components, connectors, and configurations georgia tech software development process. As discussed in the preceding chapters, early software architectural models of system components, their key services, their abstract behaviors, and their. Diagrams such as figure 1 are often referred to as wiring diagrams because they show how the various software components are wired together to build your overall application. Components, connectors, and configurations georgia tech. Componentoriented programming bundles as defined by the osgi service platform. Componentbased architecture focuses on the decomposition of the design into individual functional or logical components that represent welldefined communication interfaces containing methods, events, and properties. Software architecture architectural patterns architecture vs design pattern duration.
You need to provide context as architecture components and connectors are ambiguous. Feb 23, 2015 components, connectors, and configurations georgia tech software development process. It provides a higher level of abstraction and divides the problem into subproblems, each associated with component partitions. The widespread presence of the unified modeling language uml has led practitioners to try to apply it when documenting software architectures.
A uml profile for documenting the componentandconnector views of software architectures 3. In this approach, the architecture of a system is described as a collection of components along with the interactions among these components. Software architecture components and connectors and uml 2. What are componentandconnector views and allocation views. Aug 08, 2011 at least as far as the software engineering institute is concerned, a component and connector view type are showing runtime presence and not static structures. Componentandconnector views of software architectures. This componentandconnector structure allows the architect to determine opportunities for parallelism and the locations where resource contention may occur.