Series 27 · 8 Parts· 1h 34m

Vendor Lock-In & The Cost of Maintenance

What vendor lock-in really costs across vendor, platform, skills, and data — the compounding maintenance bill it produces, and how to escape it slice by slice.

Start reading · Part 1

Contents

01 What Is Vendor Lock-In? 12 min read Vendor lock-in is the accumulated cost of leaving a vendor, platform, skill base, or data format — across four dimensions that compound into the maintenance bill you can't escape.
02 Proprietary Middleware & Licensing Traps 12 min read Mainframe and middleware licensing is the most visible form of vendor lock-in — capacity-based charges, proprietary middleware, and support terms that turn a system you bought into a system you rent.
03 The True Cost of Maintaining Legacy Systems 12 min read The cost of maintaining legacy systems is far larger than the licensing line — infrastructure, operations, specialist labor, integration tax, and risk that never reaches a single budget item.
04 Why Maintenance Eats Your Engineering Budget 11 min read Legacy maintenance cost is paid mostly in engineering capacity — the share of your most expensive resource consumed keeping the system alive, before the roadmap gets a vote.
05 Keeping-the-Lights-On vs Innovation Spend 11 min read The keep-the-lights-on ratio decides how much of your IT budget points at the future. Deloitte put run-the-business spend near 55–57% — and a locked-in legacy estate pushes it higher.
06 Open Standards & Portable Architecture 11 min read Avoiding technology lock-in is an architecture decision, not a vendor decision — open standards, portable interfaces, and owned data keep the switching cost low by construction.
07 Escaping Vendor Lock-In 12 min read You escape vendor lock-in the way you got into it — incrementally. Lowering the switching cost of a live system one slice at a time restores negotiating power without a big-bang cutover.
08 Calculating Legacy TCO 13 min read Legacy system TCO is the whole bill of staying — licensing, infrastructure, operations, labor, integration, and risk, trending forward — set honestly against the cost of acting.