For more on sunsetting or replacing legacy systems, check out Marianne Bellotti’s "Kill It With Fire: Manage Aging Computer Systems (and Future Proof Modern One

For more on sunsetting or replacing legacy systems, check out Marianne Bellotti’s "Kill It With Fire: Manage Aging Computer Systems (and Future Proof Modern Ones)". Here's a review of the book: https://www.usenix.org/publications/loginonline/kill-it-fire https://www.usenix.org/publications/loginonline/kill-it-fire