The design, development and documentation of software. See software engineer, systems analysis & design, programming, object-oriented programming, software metrics, CASE and Systemantics.
Overview. Posttransplant lymphoproliferative disease (PTLD) is an unusual entity that has many features of an immune system malignancy. It is characterized by uncontrolled proliferation of lymphoid lineage cells (typically B cells, rarely non-B lineage) in a context of posttransplant immunosuppression.
Every domain name around the world ends with a top-level domain (TLD); these are the 2 or more letters that come after the dot. There are currently two types of TLDs: generic top-level domain (gTLDs) such as .com, .mobi, and .info, and country code top-level domains (ccTLDs) such as .uk, .br, and .cn. A gTLD or a ccTLD is managed by a registry operator, an organization that maintains the registry database, including the nameserver information for names registered in the TLD.