Services
- Authentication
- Authorization
- Session restoration (checkpointing and recovery)
The session layer of the OSI model is responsible for session checkpointing and recovery. It allows information of different streams, perhaps originating from different sources, to be properly combined or synchronized.
An example application is web conferencing, in which the streams of audio and video must be synchronous to avoid so-called lip synch problems. Floor control ensures that the person displayed on screen is the current speaker.
Another application is in live TV programs, where streams of audio and video need to be seamlessly merged and transitioned from one to the other to avoid silent airtime or excessive overlap.
Read more about this topic: Session Layer
Famous quotes containing the word services:
“Working women today are trying to achieve in the work world what men have achieved all along—but men have always had the help of a woman at home who took care of all the other details of living! Today the working woman is also that woman at home, and without support services in the workplace and a respect for the work women do within and outside the home, the attempt to do both is taking its toll—on women, on men, and on our children.”
—Jeanne Elium (20th century)
“Those services which the community will most readily pay for, it is most disagreeable to render.”
—Henry David Thoreau (1817–1862)
“It seems I impregnated Marge
So I do rather feel, by and large,
Some cash should be tendered
For services rendered,
But I can’t quite decide what to charge.”
—Anonymous.