Architectural Styles

Hi,

I have a few open queries in my mind on architectural styles.
I have just put them as questions below. Can someone advise

1. What is an Architectural Style and What purpose does it solve

2. When do we use architectural styles (i.e at what phase of a project)

3. What are the different architecture style
Some of them that I am aware of are Layered, OO, Client Server, RPC, Structured.

4. How can one add a style Is style a pattern

5. How do we select a style during architectural design

6. Can more than one style be mixed and if yes are there suitable partners for a style

Thanks,
Prasanth



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Architectural Styles

  • Dietmar Gleu

    An Architecture style can be thought of as a family of related architectures or a pattern at the architecture level

    An Architectural style is basically a set of

    • Predefined components,  roles, responsibilities and connectors (vocabulary)
    • Constrains and guides on the use of the elements

    If a style is documented it will probably have additional ingredients (like variations, examples, pros, cons etc.).

    Architecture styles are used in a similar fashion to design patterns both as a common vocabulary and as design elements

    To answer question 6 - yes styles  can be mixed for example REST (Representational State Transfer) is a derived style mixing styles like Client-server and layered you've mentioned with constraints like use of uniform interface and stateless server.

    There are many architecture styles - few notable ones (in addition to the ones you've mentioned)  include pipes and filters, blackboard, hub and spoke, interpreter, MVC, Master-Slave and many many others.  

    Regarding question 5 - you would choose a style the same way you do any other architectural decision by weighing benefits and costs and evaluating tradeoffs - you can read a few post I've recently wrote on architecture evaluation:SAF - Architecture Evaluation (Introduction) , SAF - Architecture Evaluation - Evaluation in Code and SAF - Evaluation part II - the "Formal Methods" Also here's a link to an older post I made on Modeling - Architectural Styles

    HTH,

    Arnon

     



  • Architectural Styles