Definition
An architecture review is a systematic assessment of an IT system's technical structure, technology choices, integration patterns, and data management. The review examines whether the architecture supports current and future needs, identifies bottlenecks, single points of failure (SPOF), technical debtAccumulated costs of quick, short-term technological decisions - makes future development slower and more expensive., and deviations from industry standards. In the energy sector, architecture reviews are particularly important for legacy KISCustomer Information System - the core system at power suppliers and grid companies for customer management and billing. and MDMMeter Data Management - system for collection, storage, quality assurance and distribution of metering data from the electricity grid. systems, where integration architecture towards ElhubNational hub for metering data and market processes in the Norwegian electricity market., SCADASupervisory Control and Data Acquisition - system for real-time monitoring and control of industrial processes., and billing modules has often grown organically over many years without an overarching plan. A good review results in a prioritised list of actions: what can wait, what should be refactored, and what constitutes a critical risk. TvimenningOld Norse meaning 'two bound together' - one who solves a task shoulder to shoulder with another. conducts architecture reviews as the first phase of many client engagements - it provides a shared knowledge base before building commences.