What you should look at:
BTP LeAd Services for Enterprise Architecture
Enterprise architecture (EA) is a discipline for proactively and holistically leading enterprise responses to disruptive forces by driving the execution of change toward desired business vision and outcomes. EA delivers value by presenting business and IT leaders with signature-ready recommendations for adjusting policies and projects to achieve target business outcomes that capitalize on relevant business disruptions. EA is used to steer decision-making toward the evolution of the future state architecture.
EA defines a blueprint for the structure and operation of an organization to most effectively achieve its current and future objectives.
Good Practices / Standards: TOGAF®