what is the difference between MAXDELAY and MAXSKEW constraint?

[yogi_raj_143]

Pls refer Constraitns Documentation

For MAXDELAY: http://www.xilinx.com/itp/xilinx4/data/docs/cgd/m5.html 

For MAXSKEW: http://www.xilinx.com/itp/xilinx4/data/docs/cgd/m8.html