TagService Oriented Systems

This blogpost is part of a larger blog post series. Get the overview of the content here. Start early with an automated deployment. It will safe your ass! But try to keep it as simple as possible. If your deployment gets to complex this usually indicates that your “thing” decomposition is also too complex. Tools like Octopus Deploy or the Deployment Manager from Redgate help to visualize and monitor the deployment process to multiple environments. Keep in mind that managing the configuration...

This blogpost is part of a larger blog post series. Get the overview of the content here.

Speaking about trade-offs. You’ll face some challenges regarding decomposition. But rest assured composition isn’t a piece of cake either. There are a number of challenges you’ll face and I’m sure there are even more I haven’t discovered yet. But surely you’ll tell me when you stumble over one in your project, don’t you?

This blogpost is part of a larger blog post series. Get the overview of the content here.

 
The Composite Front End pattern glues “things” together as a cohesive whole still keeping them autonomous. The Composite Front End patterns takes the ideas of web portals and applies them to SOA. It is composed of two main components: the portlet and the host.

This blogpost is part of a larger blog post series. Get the overview of the content here. A frontend is not owned by a single “thing”. It is a mashup of multiple “things” combined together to provide a single user experience. Looking at it from the deployment perspective we can say that many “things” can be deployed to the same box, many “things” can be deployed in the same app, many “things” can cooperate in a workflow and many “things” can be mashed up in the same page. Which brings us...

This blogpost is part of a larger blog post series. Get the overview of the content here.

Immutable data is unchangeable once it is written. An immutable data needs an identifier which allows to always return the same data no matter when it is requested or where it is request. Immutable data can be found everywhere in the real world.

This blogpost is part of a larger blog post series. Get the overview of the content here.
Before we dig deeper into the characteristics of a “thing” we need to talk about the explicit boundaries of a “thing” and what contracts actually mean.

This blogpost is part of a larger blog post series. Get the overview of the content here. But messaging alone is not enough! We need to decompose our system. Service Orientation can help us with that. Service Orientation or Service Oriented Architecture was first used in 1996 when Roy Schulte and Yeffim V. Natiz from Gartner defined it as “a style of multitier computing that helps organizations share logic and data among multiple applications and usage modes”. Unfortunately the term SOA has...

This blogpost is part of a larger blog post series. Get the overview of the content here.

Never assume messages will arrive in the order you sent them. If it works fine on your machine that doesn’t mean it will do the same in your production environment.

This blogpost is part of a larger blog post series. Get the overview of the content here. I briefly mentioned that the message has a body. The body carries on the payload or the actual business data identified by the message. Furthermore a message can contain metadata on its header. This allows the message to carry on additional information which can be consumed by the receiver side. Message forwarders need to make sure that the headers remain intact during the communication process. This means...

This blogpost is part of a larger blog post series. Get the overview of the content here. In the beginning, RPC style communication seems to be better performing than messaging. But when the load on the systems increases and no more threads are available the RPC performance decreases. One cause of the RPC performance decrease is the need to acquire threads from the thread pool and to allocate memory for the parameters of each request. A messaging infrastructure can deterministically assign a...