Well-crafted architecture principles guide thousands of decisions across an enterprise for years — yet typically cost less than 1% of total change effort to define. This presentation by Graham McLeod explores what makes a good EA principle, how to engage stakeholders in defining them, and how principles bridge the gap between strategic intent and concrete design. Drawn from real implementations in banking, assurance, and telecommunications, it includes worked examples and a compliance monitoring approach.
Enhancing Enterprise Architecture Models with Cost, Quality and Risk Dimensions
Enterprise architecture models are typically rich in structural detail but silent on cost, quality, and risk — the very dimensions that drive executive decision-making. This 2003 presentation by Graham McLeod, delivered at the University of Cape Town, explores how EA models can be extended with these critical dimensions using a knowledge repository approach, enabling architects and business managers to assess current and future scenarios with a fuller picture of the implications of their decisions.