Rightsizing, in the context of IT, refers the process of restructuring or reorganzing a company's IT infrastructure, networking, storage, data centers, hardware or other critical components in an effort to get the highest possible value from those services. Rather than focusing on cutting costs or expanding service, rightsizing aims to look at...
In Unified Modeling Language (UML), an activity diagram is a graphical representation of an executed set of procedural system activities and considered a state chart diagram variation. Activity diagrams describe parallel and conditional activities, use cases and system functions at a detailed level.
An activity diagram is used to model a large activity's sequential work flow by focusing on action sequences and respective action initiating conditions. The state of an activity relates to the performance of each workflow step. An activity diagram is represented by shapes that are connected by arrows. Arrows run from activity start to completion and represent the sequential order of performed activities. Black circles represent an initial workflow state. A circled black circle indicates an end state. Rounded rectangles represent performed actions, which are described by text inside each rectangle. A diamond shape is used to represent a decision, which is a key activity diagram concept. Upon activity completion, a transition (or set of sequential activities) must be selected from a set of alternative transitions for all use cases. Synchronization bars indicating the start or completion of concurrent activities are used to represent parallel subflows.
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