Your #2 is drastic. Your #1, reasonable, and Martin Fowler is your friend [1][2].<p>[1]: <a href="http:&#x2F;&#x2F;www.martinfowler.com&#x2F;articles&#x2F;enterprisePatterns.html" rel="nofollow">http:&#x2F;&#x2F;www.martinfowler.com&#x2F;articles&#x2F;enterprisePatterns.html</a><p>[2]: <a href="http:&#x2F;&#x2F;www.amazon.co.uk&#x2F;Enterprise-Integration-Patterns&#x2F;dp&#x2F;8131725081?tag=duc08-21" rel="nofollow">http:&#x2F;&#x2F;www.amazon.co.uk&#x2F;Enterprise-Integration-Patterns&#x2F;dp&#x2F;8...</a><p>[edit: beefed up]