Service-Oriented Architecture - Oracel.com [text/plain]

SOA WORLD MAGAZINE 

I have no children myself, but I've watched my nieces and nephew grow from newborns to walking, talking, independent individuals over the years. To me, one of the most fascinating parts of watching a child ... grow is seeing them go from their first tentative, hesitant steps to toddling around, grabbing Newly-disclosed fiscal details suggest that BEA's profitability picture over the last several years is better than most once believed. President and CEO Alfred Chuang reiterated that the company is worth $21 per share, just as he has alredy stated to Larry Ellison an Oracle - whose recent takeover bid was worth only $17 per share. The ball is now back in Oracle's court. Brian Stevens, the Chief Technology Officer and Vice President of Engineering of Red Hat, delivered his Virtualization Keynote this morning entitled 'The Future of the Virtual Enterprise' at SYS-CON's Virtualization Conference & Expo 2007 West in San Francisco. 'Virtualization is the The CEO and other unidentified, unnumbere   [More...] [Less...]

Understanding Service-Oriented Architecture 

If the principles summarized in Table 1 are complied with, we get some interesting benefits: There is real synchronization between the business and IT implementation perspective . For many years, business ... people haven't really understood the IT architecture. With well designed services we can radically improve communications with the business, and indeed move beyond alignment and seriously consider convergence of business and IT processes. A well formed service provides us with a unit of management that relates to business usage. Enforced separation of the service provision provides us with basis for understanding the life cycle costs of a service and how it is used in the business. When the service is abstracted from the implementation it is possible to consider various alternative options for delivery and collaboration models. No one expects that, at any stage in the foreseeable future, core enterprise applications will be acquired purely by assembling services from multiple sources.   [More...] [Less...]

What is SOA, really? 

The good news is, you probably already know. The bad news is, you probably know too much. This article describes Service Oriented Architecture in a simple and easy to understand way that is devoid of buzzwords ... and vendor spin. It’s the introduction to SOA that you haven’t been able to find anywhere else. There are things in a business that don’t change very often. Gas stations in the U.S., for example, still sell gasoline by the gallon. Restaurants still sell meals from a menu. Dentists still sell cleanings every 6 months. Every business has these aspects that don’t change very frequently. They often represent a huge part of the business. We’ll call these things the _core business functions. There are other things in a business that change very frequently. Prices, tax rates, catalogs, new products, new marketing campaigns, advertising, new business areas, new customer areas, etc. Indeed, businesses must be able to change, and change quickly, in order to survive. And yet, it is vital th   [More...] [Less...]

A future for mainframes in SOA 

While it is far too early to get an answer it is now possible to ask, as a serious rather than trivial question, whether there is scope to see new sales of zSeries mainframes grow into the SOA and web ... services-based market sectors as a result of new developments in integration tools, such as the recent appearance of DataDirect Technologies' major upgrade of its Shadow integration platform, for the traditionally back-office machines. Will it be enough to prove to be a positive lever on green field zSeries sales? It might still be a brave person who answered ‘yes’ right now, the opportunity now exists where the mainframe can start to play a full part in a web-services/SOA environment, running applications that can proactively participate in that environment rather than just be a passive contributor to it. While it may not be natural to think of a mainframe as a core system in such an environment, Version 7 of Shadow does offer the potential to move IBM's zSeries systems well beyond the t   [More...] [Less...]

InfoQ: Top Ten Software Architecture Mistakes 

Top Ten Software Architecture Mistakes Posted by Niclas Nilsson on Oct 12, 2007 08:39 PM Community Architecture Topics Enterprise Architecture Eoin Woods , one of the IASA Fellows has published an article ... about what he considers to be the - mistakes that are too often learned the hard way. Brief excerpts of the ten points are below: Scoping Woes. "This is the sort of situation where a simple travel booking system ends up with full expense claim management facilities being built into it, with inevitable repercussions for project costs, timescales and quality...It is really true that no security is needed beyond simple login? Once logged into the system can users really perform any system operation?" Not Casting Your Net Widely . "A related mistake that many of us have made is to focus on just a couple of our system stakeholders – classically the acquirer (who is paying for the system) and the end users get all of the attention." Just Focusing on Functions. "…unless the system exhibits a   [More...] [Less...]

Service-oriented architecture - Wikipedia, the free encyclopedia 

The modelling and design methodology for SOA applications has become known by the terms and SOAD [8] . SOAD is a design methodology for developing highly-agile systems in a consumer/producer model that ... abstracts implementation from process, such that a service-provider can be modified or changed without affecting the consumer. [ edit ] Service contract This refers to a Service Level Agreement type document and should not be part of the article. A service contract needs to have the following components: Header Name - Name of the service. Should indicate in general terms what it does, but not be the only definition Version - The version of this service contract Owner - The person/team in charge of the service RACI Responsible - The role the person/team is responsible for the deliverables of this contract/service. All versions of the contract Accountable - Ultimate Decision Maker in terms of this contract/service Consulted - Who must be consulted before action is taken on this contract/se   [More...] [Less...]

Web Services and Service-Oriented Architectures 

This site will help you get started with Web Services and service-oriented architectures. It features free articles, services, and product listings that can be used to develop a service-oriented architecture ... using Web Services. Online articles that provide an extensive overview of Web Services, related standards, and technologies that can be used in service-oriented architectures. There are nearly 400 pages of articles. Example enterprise Web Services architecture The following diagram is an example of a service-oriented architecture using Web Services. Click on the yellow boxes below to obtain more information on a subject. Getting started It is difficult to keep up with the rapid changes in technology. The advent of Web Services and service-oriented architectures makes "keeping up" all the more important, because these technologies are fundamentally changing the way we build our internal systems—those that support our organizations—and how internal and external systems will interact.   [More...] [Less...]

Secure Infrastructure Design [pdf]

Scott C. Zimmerman, CERT ® Coordination Center Information technology (IT) and enterprise networks have become the core of many organizations. Critical business functions often depend on a fully functioning ... IT infrastructure: no network means no ability to generate revenue. To this end, an organization’s growth and evolution should be reflected in the growth and evolution of its network. Organizational changes can include new or expanded missions, new factors such as mobile workers, and growth or downsizing in response to purely external factors. Infrastructure changes that stem from these factors can include additional network components (of a type already present), new types of components, and additional subnets or Internet connections. This paper describes the fundamental components of infrastructure design, provides an overview of risk management concepts, and illustrates samples of network topologies. Background A brief discussion of some common network entities will lay the groun   [More...] [Less...]

dsgn-bk.fmb [pdf]

Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Data Center Infrastructure ... Design March, 2004 2 Version 1.0 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University   [More...] [Less...]