Understanding "Why" in Software Process Modelling, Analysis, and Design

@inproceedings{Yu-Mylopoulos:ICSE94,
  author    = {Eric S. K. Yu and
               John Mylopoulos},
  title     = {Understanding {"Why"} in Software Process Modelling, Analysis, and Design},
  booktitle = {ICSE},
  pages     = {159--168},
  publisher = {{IEEE} Computer Society / {ACM} Press},
  year      = {1994},
}