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Subject: Re: [soa-rm-ra] Cogitating Descriptions for Reference Architecture and System
I wondered whether service offerers might be a better term ... :) But I can live with dropping service providers. Frank On Jul 24, 2007, at 10:37 AM, Ken Laskey wrote: > Frank, > > Only concern with your rewording is the exposed business > functionality of service providers because those owning the SOA > service may not be the ones who own the underlying capability. How > about we just delete of service providers? > > Ken > > On Jul 24, 2007, at 1:15 PM, Francis McCabe wrote: > >> I think that I prefer Ken's friendly amendment. >> I am also beginning to wonder whether we want bring a slightly >> agent-like perspective to services: >> >> For SOA, a system can be defined as a collection of services that >> provide access to exposed business functionality of service >> providers; and enables these capabilities to be organized and used >> to satisfy specific business needs. >> >> The rewording is subtle, but I wanted to emphasize that there is a >> *reason* that people expose their services. >> >> Frank >> >> >> On Jul 24, 2007, at 9:20 AM, Ken Laskey wrote: >> >>> First, I'll probably miss tomorrow's call. >>> >>> Second, +1 to Danny's RA definition. >>> >>> Third, I'd suggest leaning a bit more on the RM for something like: >>> >>> For SOA, a system can be defined as a collection of services that >>> provide access to underlying capabilities, i.e. business >>> functions, and enables these capabilities to be organized and >>> used to satisfy specific business needs. >>> >>> Ken >>> >>> >>> On Jul 24, 2007, at 11:43 AM, Danny Thornton wrote: >>> >>>> Chapter 1 of the latest RA doc is really shaping up. >>>> There are two issues for this section that we may be >>>> able to work through via email. >>>> >>>> 1) The first issue is our description of a reference >>>> architecture. Currently we state: >>>> >>>> "A reference architecture is an architectural design >>>> pattern that indicates how an abstract set of >>>> mechanisms and relationships realizes a predetermined >>>> set of requirements." >>>> >>>> If we state the reference architecture is an >>>> architectural design pattern, I would expect the >>>> document to contain design patterns in a common design >>>> pattern format. Also, I would associate "realizes" as >>>> it is used in the sentence with SOA implementation. >>>> The following is an alternative description for a >>>> reference architecture: >>>> >>>> A reference archicture is a design template that >>>> indicates how an abstract set of mechanisms and >>>> relationships may realize a predetermined set of goals >>>> and requirements. >>>> >>>> 2) The second issue is that we use the ANSI IEEE >>>> 1471-2000 definition for system: >>>> >>>> "A collection of components organized to accomplish a >>>> specific function or set of functions." >>>> >>>> I suggest dropping this direct quote from IEEE 1471 >>>> and stating something more appropriate for an SOA >>>> ecosystem. For example, >>>> >>>> For SOA, a system can be defined as a collection of >>>> services and components organized to accomplish >>>> specific goals and requirements. >>>> >>>> Other than these two issues, chapter one is a good >>>> read and resonates with me. >>>> >>>> Danny >>>> >>>> >>>> >>>> ___________________________________________________________________ >>>> _________________ >>>> Be a better Heartthrob. Get better relationship answers from >>>> someone who knows. Yahoo! Answers - Check it out. >>>> http://answers.yahoo.com/dir/?link=list&sid=396545433 >>> >>> >>> -------------------------------------------------------------------- >>> ---------------------- >>> Ken Laskey >>> MITRE Corporation, M/S H305 phone: 703-983-7934 >>> 7515 Colshire Drive fax: 703-983-1379 >>> McLean VA 22102-7508 >>> >> > > > ---------------------------------------------------------------------- > -------------------- > Ken Laskey > MITRE Corporation, M/S H305 phone: 703-983-7934 > 7515 Colshire Drive fax: 703-983-1379 > McLean VA 22102-7508 >
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