Skip to main content

ROI Case Studies

QSM software intelligence turns tough challenges into measurable business value

SLIM‑Suite Helps Telecom Supplier Deliver $150M System On Time and Meet Reliability Goals

Outcomes at a Glance

  • $150M system delivered on time
  • Met all reliability and quality targets
  • Achieved an acceptable profit margin despite aggressive commitments
  • Standardized estimation and tracking across 20 distributed sub‑teams
  • Adopted SLIM‑Control project monitoring as a core practice — “SLIM is always right”

Context

A major global telecommunications equipment supplier needed to coordinate a complex development effort involving 20 sub‑teams, each using informal and inconsistent estimation methods. Their ad hoc approach produced unreliable estimates, frequent delays, cost overruns, and quality issues — putting major customer relationships at risk. For an upcoming $150M cellular switching system, the organization needed a defensible schedule and a reliable way to keep a large, distributed team aligned.

Barriers

  • No standardized estimation methodology across sub‑teams
  • Informal, undocumented processes that couldn’t be repeated or scaled
  • Limited ability to identify performance issues early
  • Difficulty keeping schedule, cost, and quality aligned across a global team
  • High‑stakes customer expecting aggressive delivery targets

What QSM Delivered

The supplier purchased the SLIM‑Suite and formalized a management process around SLIM‑Estimate and SLIM‑Control.
Key actions included:

  • Establishing a unified estimation process using SLIM‑Estimate
  • Calibrating SLIM‑Control with the team’s historical data for higher forecast accuracy
  • Loading the completed estimate into SLIM‑Control to track execution against plan
  • Using control bounds to identify early deviations and take immediate corrective action
  • Using scenario analysis in SLIM‑Control to validate decisions and maintain schedule feasibility

The combination of standardized estimation and real‑time performance management enabled both the supplier and its top‑tier customer to proceed with confidence. The $150M project was delivered on time, met reliability goals, and achieved a profitable outcome — a win for every stakeholder.