the deeper we go into the history of architecture, the less physical evidences are found; ceilings are collapsed, walls are fallen and the foundations are faded out over the time. however, there is no trace of some of these buildings, but they are not completely destroyed and they have been surviving in written documentations. the period of ghaznavid empire (997-11860) encompasses one of the mo...

Designing an online help facility is diierent from writing a paper manual. The design principles for online documentation diier from those for written documentation, although often the same people are responsible for both tasks. In this paper we shortly discuss general principles and guidelines for the design of online documentation and we illustrate them by evaluating the design of an online h...