Questions about service-oriented architecture, or designing software as a collection of services.

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25
votes
5answers
825 views

Has the term “Service Oriented Architecture” become meaningless jargon? [closed]

I was asked today if I had experience with "Service Oriented Architecture" and although I think I do. The concept, to me, seems so muddled I don't know how you could honestly answer that question ...
12
votes
2answers
2k views

WCF/SOA - Why should I create parameter objects for simple requests

Our company is starting a fairly large SOA initiative. We're doing a lot of stuff right: there's good communication; money for tools where appropriate; and we have brought on some good expertise to ...
11
votes
5answers
470 views

How can you effectively use web services in an enterprise environment if you can't use transactions?

The place I'm working at is trying to establish some ground rules, and the debate we're having now is local libraries vs web services for code reuse. Web services seem to be the popular pick in most ...
10
votes
4answers
2k views

Why do people think SOAP is deprecated? [closed]

While browsing SO today I found this question here and it starts with this: Sure, you're gonna tell me that SOAP is depracated and all, well i'm forced to use it Found lots of statement like ...
8
votes
4answers
3k views

Is it bad practice for services to share a database in SOA?

I have recently been reading Hohpe and Woolf's Enterprise Integration Patterns, some of Thomas Erl's books on SOA and watching various videos and podcasts by Udi Dahan et al. on CQRS and Event Driven ...
8
votes
5answers
754 views

Why is there no service-oriented language?

Edit: To avoid further confusion: I am not talking about web services and such. I am talking about structuring applications internally, it's not about how computers communicate. It's about ...
8
votes
1answer
1k views

Architecting a modular service application

I'm looking at architecting a new solution that is very modular by nature and would like to create a structure that supports that design to allow for easy future expansion, clear separation of ...
7
votes
7answers
344 views

Communication Between Different Technologies in a Distributed Application

I had to a incorporate several legacy applications and services in a network-distributed application. The existing services and applications are written using different languages and technologies, ...
7
votes
5answers
893 views

Why use services (REST/SOAP) instead of a library?

Let's say you're looking at breaking up your applications into services. Are there any good reasons to adopt a SOA approach vs. just creating a library API that can be loaded by the applications that ...
7
votes
2answers
5k views

What's the best practice to do SOA exception handling?

Here's some interesting debate going on between me and my colleague when coming to handle SOA exceptions: On one side, I support what Juval Lowy said in Programming WCF Services 3rd Edition: As ...
7
votes
3answers
618 views

What is the value of workflow tools?

I'm new to Workflow developement, and I don't think I'm really getting the "big picture". Or perhaps to put it differently, these tools don't currently "click" in my head. So it seems that companies ...
7
votes
1answer
295 views

What are requirements for a successful SOA?

I’m an EA in an organisation with 10000+ employees. Strategically we are heading towards SOA. Currently I’m researching about SOA’s and creating a road map and I have come over many blogs that talk ...
6
votes
2answers
216 views

how to handle / architect soa when service becomes unavailable?

Say I've got a third-party service called Cool.io that provides a RESTful API but often goes down. My applications consume that API, but when Cool.io goes down, my app really can't do much... but it ...
6
votes
1answer
427 views

Does SOA service composition actually work in practice?

One of the main SOA service design principles is Service Composability principle (https://en.wikipedia.org/wiki/Service_composability_principle). The idea is that by composing new services using ...
5
votes
2answers
461 views

Amazon SOA: database as a Service

There is an interesting interview with Werner Vogels which is partly about how Amazon does Service Oriented Architecture: For us service orientation means encapsulating the data with the ...
5
votes
5answers
408 views

How do you keep SOA DRY?

In our organization, we've shifted to a more "service oriented architecture". To give an example, let's assume we need to retrieve a "Quote" object. This quote has a shipper, a consignee, phone ...
5
votes
2answers
175 views

Alternative approaches to usual software solutions

I am creating a service to be exposed on the internet. One of those things you would normally say "Web 2.0", but that I want to expose as a SOAP webservice, with desktop clients. I know that it may ...
5
votes
1answer
197 views

Integrating Domain Model Applications - Resources/Guidance

I'm struggling to find guidance on integrating various applications, usually based on a Domain Model architecture. The applications often expose and consume each others WCF services, but this tends to ...
5
votes
1answer
237 views

How do I build a highly scalable user/profile service?

Question -- I currently have a large monolithic Java application which I am working to break up into services components. One of the components I want to separate out is the service which handles ...
4
votes
8answers
564 views

Does agile development need a framework in place first?

We are planning a new project and we want to go with a services oriented architecture. Everyone agrees that this is the way to go but how does this fit in with starting the development using agile ...
4
votes
2answers
236 views

Is SOA an Utopia? [closed]

I have attended to many SOA related sales pitches and presentations through the years. SOA projects have died because of lack of interest or because of grandiose scopes. The very buzzword has lost ...
4
votes
1answer
8k views

Where to put Spring configuration file?

I want to integrate Spring framework in my project especially into server side. So, I don't want to put it within WEB-INF folder of war file. Should I put an applicationContext.xml it into each ...
4
votes
3answers
567 views

How to loosely couple modules in service oriented architecture

We're developing a total solution, and we've chosen service-oriented architecture to loosen subsystems. However, now we have a problem. When customer orders something, Order Subsystem is responsible ...
4
votes
1answer
395 views

Return Types from Service Interfaces in Service Layer: Mapper required for UI Layer objects?

I am designing a component based system using JSF2 on top of Spring's IoC Container. It is to employ a service layer between a controller and the domain/business layer (I anticipate the controller is ...
4
votes
2answers
476 views

How REST is used outside of the web

I was recently reading the Wikipedia article for Resource-Oriented Architectures (ROA) and stumbled across an article that made the assertion that, although REST is a technology that is very-well ...
4
votes
2answers
239 views

In choosing a service-oriented architecture framework that needs to work with .NET and with Java, what to look for?

I planning to write an application in which there will be a service (call it A) listening for particular commands. This service will then relay those commands to other services (call them B and C) ...
4
votes
1answer
493 views

Good design for delegates in a service oriented architecture

My problem is quite complex to explain and my English is not excellent, so I hope you can understand my question. In a service oriented architecture there are some modules that own data used by all ...
3
votes
5answers
708 views

Where does Java get its SOA reputation from?

I see lots of SOA books surrounding Java and have always had the subliminal notion that Java is the "right" language for robust/enterprisey SOA, even though I know what SOA involves and that it is ...
3
votes
5answers
436 views

Is SOA suitable for developers or only for business/IT management people?

Let's suppose you're the lead of a team of developers that needs to build a big information system such as an ERP or Human Resources software, or whatever system that is composed by multiple business ...
3
votes
3answers
922 views

Reuse Business Logic between Web and API

We have a website and two mobile apps that connect through an API. All the platforms do the exactly same things. Right now the structure is the following: Website. It manages models, controllers, ...
3
votes
3answers
270 views

Identify Service Oriented Architecture

How can I tell if a system is built upon a service oriented architecture when reading its source code?
3
votes
2answers
453 views

Where does Windows Workflow Foundation fit into the messaging oriented middleware architecture?

I've been trying to find information online about where WWF 4.5 fits with in an architecture based around an enterprise message queue using central broker(s) (RabbitMQ in particular). It seems like ...
3
votes
1answer
90 views

Coding to SOA, External Dependency

This has happend to me more than once, thought someone can give some insight. I have worked on multiple projects where my project depends on external service. When I have to run the application ...
3
votes
3answers
1k views

How to use the unit of work and repository patterns in a service oriented enviroment

I've created an application framework using the unit of work and repository patterns for it's data layer. Data consumer layers such as presentation depend on the data layer design. For example a CRUD ...
3
votes
1answer
348 views

In-process SOA?

Can DI/IoC be used for a simplified, local SOA? I have been reading up on SOA (examples: here, here and here) and it seems that at first a lot of the attention was at interoperability and enabeling ...
3
votes
1answer
113 views

Use a custom value object or a Guid as an entity identifier in a distributed system?

tl;dr I've been told that in domain-driven design, an identifier for an entity could be a custom value object, i.e. something other than Guid, string, int, etc. Can this really be advisable in a ...
3
votes
2answers
115 views

Service Design approach - one generic operation, and its implications

The hot topic in our organization is Service Design Approach. First Approach - The team wants to design services which essentially have one operation, can take any XML and return response XML ...
3
votes
1answer
101 views

Assessing Relative Maintainability

We (a contractor, actually) are implementing an off the shelf system to replace a legacy homegrown system for the core domain of the company (designing widgets). Unfortunately both systems will have ...
3
votes
1answer
344 views

WCF and Service Registry

I am about to build some WCF Services. Those services need to communicate to each others too, in some scenarios. I've done some "Google-ing" about Service Registry but can't figure out how to ...
2
votes
2answers
1k views

Relationship between SOA and OOA

Thomas Erl defines SOA as follows in his site: Service-oriented computing represents a new generation distributed computing platform. As such, it encompasses many things, including its own ...
2
votes
2answers
282 views

DDD - Domain Object calling a web service

Is it ok to call a webservice from a Domain object?. As I write the question I am thinking that you should never do that, as it is poor design, but the situation is the following: I have a domain ...
2
votes
1answer
201 views

SOA - The four tenets

I'm reading about SOA and the four tenets required to make a SOA application. I have tried different sources, but the explanations are twisting. I'm searching for something that is a bit less ...
2
votes
1answer
4k views

Should I get a service-oriented architecture certification? [closed]

In my place of work, we have a number of applications that seem to interact in a rather ad-hoc, haphazard way, and I feel I need to understand system integration better. I'm currently deciding ...
2
votes
3answers
148 views

Is SOA as a concept intended to function within code or between machines over a network?

As the question states: When implementing "SOA", is it a concept intended for communication between systems over a network or is it intended as a concept that operates within the language as a ...
2
votes
2answers
136 views

Allowing client to select data to return via REST interface

I have a rest service that is essentially a proxy to a variety of other services. So if I call GET /users/{id} It will get their user profile, as well as order history, and contact info, etc... all ...
2
votes
3answers
273 views

How to do lazy loading in a SOA fashion?

For example, I've got a root object exposed in a SOA service, say Invoice (Invoice has line items as children). Sometimes, I need to retrieve its detail line items. I'm thinking to make it lazy ...
2
votes
3answers
2k views

Why should I use interfaces if the implementation will mostly stay the same? [duplicate]

Possible Duplicate: Why are interfaces useful? In our company we have a service oriented architecture in our asp.net application. We use interfaces for every crap class. Its a huge ...
2
votes
2answers
390 views

Services or Shared Libraries?

I work in an environment where we have several different web applications, where each of them have different features but still need to do similar things: authentication, read from common data ...
2
votes
2answers
215 views

Does Service-Oriented Architecture require the robustness principle?

I try to migrate more and more of our IT infrastructure to a Service-Oriented Architecture (SOA), that means separation of independent tasks and implementation of this tasks as decoupled services, ...
2
votes
2answers
117 views

Distribution of Event Listeners in a Distributed Service Oriented Architecture

I have a service architecture composed of services that service common areas of the application. Examples of services would be: AccountService (manages client accounts in the system) BillingService ...