This document summarizes early enterprise architecture challenges from the 2000s. It describes how organizations initially had monolithic systems with siloed departments and technology stacks, leading to inefficient processes like ETL and batch jobs. It then outlines how software practices began adopting best practices like design patterns and agile methods. The advent of the web introduced challenges around interoperability, security, and real-time capabilities. This drove innovations in technologies like XML, BizTalk, and SOAP to enable integration. System administration was complex with dependencies and different operating environments. There was a movement towards virtualization and containers as precursors to more modern approaches.

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Early Enterprise
Architecture
Naughties
Slides from lightning talk at Rethinking Banks - IBM Code NYC Meetup - 01/28/2019

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MONOLITHS

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Silos !== Interop
● Departments
● Technology stacks

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Siloed
Application

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Heavy lifting, Slow and Expensive
● ETL - Extract Transform and Load
● FTP - batch operators - JCL - Job Control Language

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Chart mania!
Large and impressive,
low value!

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Software was changing too - adhoc to best practices
● Design patterns ( Christopher Alexander => Gang of Four )
● XP ( eXtreme programming )
● Capability Maturity Model

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Advent WWW
● Netscape! please!
● Realtime? Message Queues
● Security concerns - DMZ - DCOM - SSL
● Httpd? Sparse on Windows NT - asp/IIS

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Interop - Innovation at internet speed
● XML
● Microsoft BizTalk
● Java Beans
● XMLHTTP/RPC
● SOAP

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World
Wild
Web

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System Administration - hairy
● Sys Admins + build engineers - hard drive replication or recipes
● dedicated Shared servers ~/Grant/ /lib/shared - Windows32
● Dependency hell
○ SO
○ DLL
○ rpm

12. @moficodes @gsteinfeld
Movement towards the future
● Linux showing up in staging
● VM’s
○ Hyper visor
■ Hyper-V
■ KVM
● Linux container LXC
● Precursor to Docker!