Basic Flowchart Symbols and Meaning

The vector stencils library "Window elements" contains 24 window elements: frames, boxes and buttons.
Use it to design graphic user interface (GUI) of your Windows 8 software application.
"A window is a graphical control element. It consists of a visual area containing some of the graphical user interface of the program it belongs to and is framed by a window decoration. It usually has a rectangular shape that can overlap with the area of other windows. It displays the output of and may allow input to one or more processes.
Windows are primarily associated with graphical displays, where they can be manipulated with a pointer by employing some kind of pointing device.
A graphical user interface (GUI) using windows as one of its main "metaphors" is called a windowing system, whose main components are the display server and the window manager." [Window (computing). Wikipedia]
The design elements example "Window elements - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Windows 8 User Interface solution from the Software Development area of ConceptDraw Solution Park.

The vector stencils library "Messages" contains 10 Message dialog elements.
Use this notification dialog UI icon set to design graphic user interface (GUI) of your Windows 8 software application.
"A message dialog is an overlay UI element that provides a stable and contextual surface that is always modal and explicitly dismissed. Message dialogs appear at a consistent location on the screen. ...
Error messages that apply to the overall app context use message dialogs. ...
- Use message dialogs to convey urgent information that the user must see and acknowledge before continuing. ...
- Use message dialogs to present blocking questions that require the user's input. A blocking question is a question where the application cannot make a choice on the user's behalf, and cannot continue to fulfill it's value proposition to the user. A blocking question should present clear choices to the user. It is not a question that can be ignored or postponed.
- Use message dialogs to ask for explicit action from the user or to deliver a message that is important for the user to acknowledge. ...
- Use custom dialogs when the app or the system must invest a significant amount of time in the ensuing actions such that an accidental dismiss would be detrimental to the user's confidence.
- All dialogs should clearly identify the user's objective in the first line of the dialog's text (with or without a title).
- Don't use message dialogs when the app needs to confirm the user's intention for an action that the user has taken. Instead, a flyout is the appropriate surface. ...
- Don't use message dialogs for errors that are contextual to a specific place on the page, such as validation errors (in password fields, for example), use the app's canvas itself to show inline errors." [msdn.microsoft.com/ en-us/ library/ windows/ apps/ hh738363.aspx]
The notification dialogs example "Messages - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Windows 8 User Interface solution from the Software Development area of ConceptDraw Solution Park.