Deployment Diagram
Purpose
Deployment Diagrams (DPDs) are UML's attempt to recognise that there is a world outside software. That is, these diagrams attempt to show the physical processors in the system (called nodes in DPDs), the processes that are allocated to them, and, to a limited extent, how these processors are interconnected.
These diagrams are intended to show the allocation of processes to nodes, by listing the processes that may run on a processor underneath the node symbol for the processor. Cradle will support this mapping in a different way, by providing a frame called PROCESSES in the node's Process Specifications (PSpecs), in which the names of the processes allocated to the node can be listed.
By being defined by PSpecs, nodes will be cross referenceable.
Characteristics
APPEARS IN MODELS |
Implementation |
NUMBERING |
DPDs take their name and number from the package from which they are an expansion. They contain nodes and links. The nodes are defined by PSpecs. The number of the PSpec is the dot concatenation of the DPD number and the node number, its name is the same as the node name. |
HIERARCHICAL |
None |
Linkage
Symbols
| Symbol |
Name |
Description |
Definition |
Expansion |
 |
Comment |
Makes a note anywhere in the diagram. Are always surrounded by * characters. |
None |
None |
 |
Process or node |
A runtime physical object that represents a processing resource, generally having at least a memeory and often processing capability as well. |
PSpec |
None |
 |
Picture |
Allows you to choose the location of a GIF or JPEG image to be displayed as a diagram symbol or to be embedded in an existing diagram symbol. |
None |
None |
 |
Node dependency |
A communication association. |
None |
None |
|
