UML class diagram - Metadata information model

"Metadata is "data about data". The term is ambiguous, as it is used for two fundamentally different concepts (types). Structural metadata is about the design and specification of data structures and is more properly called "data about the containers of data"; descriptive metadata, on the other hand, is about individual instances of application data, the data content.
Metadata are traditionally found in the card catalogs of libraries. As information has become increasingly digital, metadata are also used to describe digital data using metadata standards specific to a particular discipline. By describing the contents and context of data files, the quality of the original data/ files is greatly increased. For example, a webpage may include metadata specifying what language it is written in, what tools were used to create it, and where to go for more on the subject, allowing browsers to automatically improve the experience of users." [Metadata. Wikipedia]
The UML class diagram example "Metadata information model" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.

This example of automated payroll management system UML activity diagram was created on the base of figure on the webpage "Automated payroll management system" from ethelmandane.wikispaces.com.
"In the Philippines and in other foreign countries the government has a trend to embrace automation for process efficiency. One of the processes that are being automated is the payroll process. Payroll is the total amount required to pay workers and employees during a week, month or other period.
One of the government offices that desires to automate their payroll system is the NSO Camarines Sur which is located 2nd Floor MMCN Building, Panganiban Avenue, Naga City. The National Statistics Office (NSO) envisions to be recognized as a world-class provider of statistical and civil registration products and services and lives with its mission to produces and provides quality statistical and civil registration products and services. ...
The project seeks to create an Information System Plan for an Automated Payroll Management System. ...
The creation of the Information System Plan will benefit the accounting section of the organization. Specifically it is significant to:
1. Administrative Assistants. It will help to lessen time and effort in preparing and computing the salary of the employee.
2. NSO. It will help the organization to be more productive and efficient."
[ethelmandane.wikispaces.com/ ]
This file is licensed under a Creative Commons Attribution Share-Alike 3.0 License. [creativecommons.org/ licenses/ by-sa/ 3.0/ ]
This UML activity diagram example modeling the automated payroll management system using automated teller machine (ATM) was created using the ConceptDraw PRO diagramming and vector drawing software extended with the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park.

This example of automated teller machine (ATM) UML sequence diagram was created on the base of figure 5 "Sequence diagram" on the webpage "Message Sequence Charts and their Ilk" from the website of the University of California Irvine (UCI) Donald Bren School of Information and Computer Sciences.
"A UML sequence diagram or SD is similar to an MSC but written with a different notation. Presumably the same semantic issues arise, but possibly not since UML semantics are not well-defined. An example is shown in Figure 5.
The timelines are dotted rather than solid, and the name of the component is inside a box at the head of each timeline. The narrow rectangles apparently show when a component is active (unsure precisely what "active" means). An X on a timeline indicates that the component ceases to exist in some sense (unsure precisely how this is meant also). In the example, the Bank timeline has an X simply as an example (presumably the Bank does continue to exist)."
[www.ics.uci.edu/ ~alspaugh/ cls/ shr/ msc.html]
This example of bank ATM sequence diagram was created using the ConceptDraw PRO diagramming and vector drawing software extended with the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park.

"In the Unified Modeling Language, a component diagram depicts how components are wired together to form larger components and or software systems. They are used to illustrate the structure of arbitrarily complex systems." [Component diagram. Wikipedia]
This UML component diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.

The vector stencils library "UML component diagrams" contains 36 symbols for the ConceptDraw PRO diagramming and vector drawing software.
"In the Unified Modeling Language, a component diagram depicts how components are wired together to form larger components and or software systems. They are used to illustrate the structure of arbitrarily complex systems. ...
Symbols.
This may have a visual stereotype in the top right of the rectangle of a small rectangle with two even smaller rectangles jutting out on the left.
The lollipop, a small circle on a stick represents an implemented or provided interface. The socket symbol is a semicircle on a stick that can fit around the lollipop. This socket is a dependency or needed interface." [Component diagram. Wikipedia]
The example "Design elements - UML component diagrams" is included in the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.

This example was drawn on the base of figure 1 on the webpage "Template: OASIS:FunctionalBreakdownStructure" from the OASIS website.
"The FunctionalBreakdownStructure template describes how to represent a relationship between a FunctionalElementDefinition and another FunctionalElementDefinition that is a constituent.
The SysML Block Definition diagram in Figure 1 shows how a functional breakdown is represented in the PLCS PSM."
[docs.oasis-open.org/ plcs/ plcslib/ v1.0/ csprd01/ data/ contexts/ OASIS/ templates/ FunctionalBreakdownStructure/ template.html]
"A block definition diagram is based on the UML class diagram, with restrictions and extensions as defined by SysML." [omg.org/ spec/ SysML/ 1.3/ PDF]
The example "SysML block definition diagram - Function Breakdown model" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the SysML solution from the Software Development area of ConceptDraw Solution Park.