IT Infrastructure Upgrade Assumptions Log
This is a practical guide to building a assumptions log for an it infrastructure upgrade project — a register of the assumptions the plan depends on, to be validated, adapted to the realities of refreshing servers, storage and core IT infrastructure.
What a Assumptions Log is
A assumptions log is a register of the assumptions the plan depends on, to be validated. For the full concept and how it works in general, see Project Assumption. On an it infrastructure upgrade project it plays the same role, tuned to this kind of work.
Why it matters for an IT Infrastructure Upgrade project
IT Infrastructure Upgrade projects live or die on refreshing servers, storage and core IT infrastructure. A well-built assumptions log gives the team a shared, explicit reference for exactly that — reducing ambiguity, aligning stakeholders, and making problems visible early enough to act. Skipping it, or doing it generically, is how it infrastructure upgrade projects drift into avoidable delay and cost.
What to include
- Assumption
- Impact if wrong
- Owner
- Validation status
IT Infrastructure Upgrade-specific considerations
Tailor the assumptions log to the risks that most often derail it infrastructure upgrade projects:
- Migration downtime
- Capacity planning
- Vendor and procurement delays
Example
On a real it infrastructure upgrade project, the assumptions log would be shaped by refreshing servers, storage and core IT infrastructure. In particular, it should explicitly account for the project’s biggest risks — migration downtime, capacity planning, vendor and procurement delays — rather than treating them as afterthoughts.