Build, protect and deploy apps across any platform and mobile device
Leverage a complete UI toolbox for web, mobile and desktop development
Automate UI, load and performance testing for web, desktop and mobile
Rapidly develop, manage and deploy business apps, delivered as SaaS in the cloud
Automate decision processes with a no-code business rules engine
Build mobile apps for iOS, Android and Windows Phone
Deploy automated machine learning to accurately predict machine failures with technology optimized for Industrial IoT.
Optimize data integration with high-performance connectivity
Connect to any cloud or on-premise data source using a standard interface
Build engaging multi-channel web and digital experiences with intuitive web content management
I was about to enter a meeting yesterday, when a peek into the room showed me everyone dressed “business casual.” Seeing as I was wearing a suit and didn't want to be overdressed, I flipped off my shoes and headed on in.
It wasn't long before someone commented on my suit. Thankful for ability to think on my feet, I pointed to my socks and said, “I realized the suit was a bit formal so I ix-nayed the footwear... on average, I'm business casual.”
When the clamor in the room subsided, the general consensus was that I was insane.
And, actually, that was my point. See, I wore the suit on purpose, though I admit, I didn't think of the shoe-schtick until I was outside the room. My point was...
It's insane to make important decisions based upon averages.
SOA What? You have a service. It's used by several applications. You want to know how that service is performing. What do you measure?
Well, you might measure service availability or response time. You might measure how much CPU it's using, or how many messages per second it can process. But, you never consider the application's many contexts. Why's that?
Well, because it's hard to do that.
Does a manufacturing system sharing a service with an HR time-clock system also share performance requirements? Does a market research application have the same performance characteristics as a trading application? If average SLA compliance is OK, why isn't average dress-code compliance OK? Our dress code is, after all, just another “business policy.”
Service owners often are unaware of the contexts in which their services are used. In fact, that's a key SOA driver! Sharing services without worrying the implementation details. The problem, in these shared services examples, is that the “on average” is implied. Though, clearly, averages are unsuitable measuring compliance.
Please, if you don't want your sanity taken in question like mine, examine your own SOA compliance with business policies for exposure to averages... before it's too late.
*I realize that, technically, on average half of your services are performing worse than the median. But, that didn't sound as catchy.
View all posts from david bressler on the Progress blog. Connect with us about all things application development and deployment, data integration and digital business.
Copyright © 2017 Progress Software Corporation and/or its subsidiaries or affiliates.
All Rights Reserved.
Progress, Telerik, and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See Trademarks for appropriate markings.