The document discusses three approaches to enterprise architecture tools: 1) Top-down focuses on strategy/planning and to-be models but is difficult to keep accurate for deployed elements. 2) Bottom-up assesses change impact and dependencies but does not link well to business processes. 3) Change management helps prioritize IT initiatives for business but lacks modeling features.

1. Approach Management User Advantage Weakness The three approaches of Enterprise Architecture tools Bron: Henry Peyret,Getting Value From Enterprise Architecture Tools August 9, 2004. 1) Top-down Strategy and planning Applications architecture Infrastructure To-be-models Business analyst Architect Provides business process modelling Hard to maintain accurate descriptions for deployed elements 2) Bottom-up Strategy and planning Applications architecture Infrastructure As-is-models Operational IT staff Assess change impact and models dependencies Ther’re designed for IT and don’t link with business processes Strategy and planning Applications architecture Infrastructure 3) Change management Projects IT portfolio manager IT strategist IT buget controller Architect Helps IT prioritize, plan and budget for business iniatives Paucity of modeling features