1 This is also why blacks and Asians have fewer facial wrinkles than whites. 2  Black skin has more casual lipids and more moisture in the stratum corneum than white skin. 3  Black skin sheds its outer layers more (increased desquamation) than white skin.  Black skin has 50% lower ceramides than white or Hispanic skin.
Definition - What does Software Development Life Cycle (SDLC) mean? The software development life cycle (SDLC) is a framework defining tasks performed at each step in the software development process. SDLC is a structure followed by a development team within the software organization. It consists of a detailed plan describing how to develop, maintain and replace specific software.
SDLC is quite old and has since been replaced by HDLC and Advanced Data Communication Control Procedures or ADCCP, which is the version standardized by ANSI, due to the latterâs superiority. There are also a number of competing protocols that serve as alternatives to SDLC and HDLC. Summary: 1.HDLC is actually adopted from SDLC 2.HDLC is a standard protocol while SDLC is not 3.HDLC has the Asynchronous Balanced Mode feature while SDLC does not 4.HDLC supports frames that are not multiple of bit-octets while SDLC does not