Course Map

Agenda

• Definitions
• Artifacts
• Nodes
• Deployment specifications
• Deploy relationships
• Implementation workflow
• Architectural implementation

Definitions

• An artifact is the specification of a physical piece of information that is used or produced by a software development process, or by deployment and operation of a system. Examples of artifacts include model files, source files, scripts, and binary executable files, a table in a database system, a development deliverable, or a word-processing document, a mail message.
  
  An Artifact defined by the user represents a concrete element in the physical world. A particular instance (or ‘copy’) of an artifact is deployed to a node instance. Artifacts may have composition associations to other artifacts that are nested within it. For instance, a deployment descriptor artifact for a component may be contained within the artifact that implements that component. In that way, the component and its descriptor are deployed to a node instance as one artifact instance.
• A deployment (instalacja) is the allocation of an artifact or artifact instance to a deployment target.
• A component deployment is the deployment of one or more artifacts or artifact instances to a deployment target, optionally parameterized by a deployment specification. Examples are executables and configuration files.
• Deployment diagrams show the allocation of Artifacts to Nodes according to the Deployments defined between them.
• A deployment specification is a general mechanism to parameterize a Deployment relationship, as is common in various hardware and software technologies. The deployment specification element is expected to be extended in specific component profiles. Non-normative examples of the standard stereotypes that a profile might add to deployment specification are, for example, «concurrencyMode» with tagged values {thread, process, none}, or «transactionMode» with tagged values {transaction, nestedTransaction, none}.
• A node is computational resource upon which artifacts may be deployed for execution. Nodes can be interconnected through communication paths to define network structures.
• A device is a physical computational resource with processing capability upon which artifacts may be deployed for execution. Devices may be complex (i.e., they may consist of other devices).

Artifacts

An artifact represents the specification of a real world thing such as a file.

A visual representation of the manifestation relationship between artifacts and components

Nodes

• A node represents a type of computational resource.
• A node instance represents a specific computation resource.

A descriptor form deployment diagram.

The instance for deployemt diagram.

Deployment specifications

Deployment Specification for an artifact (specification and instance levels)

Deployment Specifications related to the artifacts that they parameterize

Deploy relationships

A Deployment Specification for an artifact

The following deployment diagram shows the relationships among software and hardware components involved in a data base application.

Communication path between two Node types with deployed Artifacts

• Artifacts may be contained within node instance symbols.
• This indicates that the items are deployed on the node instances.

A set of deployed component artifacts on a Node