513 ;;Quote: Lucent's 5ESS telephone switch contains 5,000 modules of 100,000,000 lines of C, C++, and domain specific languages; 20 million lines per release

513 ;;Quote: a Feature is the fundamental unit of system functionality; a set of Initial Modification Requests (IMRs) implements a Feature; one IMR to hundreds; may include hardware

513 ;;Quote: an Initial Modification Request is implemented by a set of Modification Requests; one developer per MR, multiple IMRs and MRs per developer

513 ;;Quote: features and change history managed by the IMR Tracking System; MRs and changes managed by the Extended Change Management System

514 ;;Quote: over a decade, 31,884 MRs changed nearly 95% of the files; in a subsystem of 2 million lines of code

516 ;;Quote: identify erroneous changes by finding bug fixes that changed the same lines as another change

517 ;;Quote: 40% of changes to fix errors introduced more errors

518 ;;Quote: most changes are small; 10% of files changed one line; 95% of changes less than 50 lines

522 ;;Quote: most changes for adaptive purposes; most changes added new code

524 ;;Quote: change management systems should include the type of change (corrective, perfective, adaptive, inspection)

524 ;;Quote: review software according to change sizes; under 10 lines, 10-50, and over 50 lines

524+;;Quote: under 10 lines change in 46% of files with a 8% chance of error; over 50 lines change in 4% of files with a 35% chance of error