ABSTRACT: A prediction of reliability is an important element of Local Exchange Carrier (LEC) equipment selection. In the past, such a statement concerning reliability has implied hardware reliability. However, software's role in the operation of telecommunications equipment has become increasingly important.

This Generic Requirements (GR) document presents the Telcordia view of attributes that a software reliability model is required to possess. It proposes a model framework that meets these attributes and thus may be used for prediction. In order to promote the continued development of improved models and to allow current models to be continually validated, this document also presents requirements for data collecting necessary for supporting software reliability prediction.