written by gunther gerlach-2009
Many midsize corporations have enterprise solutions based on legacy systems created more than a decade ago with no strategy or architecture in mind. From a time where sustainable and ecosystems didn’t even exist. Today, those systems became a monster hard to deal with and, extremely high to maintain. Corporations need to make a decision now and chose the appropriate technology to update or rebuild their solutions with customers on mind.
Gunther Gerlach
written by gunther gerlach-2009
Internet commerce has created newer forms of service interactions than traditional marketplace transactions. Amazon/UKOnline, single-consumer-to-service transactions – e.g., making customer listings, doing basic look-ups and verification checks, and purchasing goods – are giving way to more distributed, pull-oriented and data streaming modes of interaction on the web. Marketplace auctions, voting, and subscription-based RSS feeds are enhancing wider spans of participants and semistructured, audio and video data in conventional transactional forms.
Gunther Gerlach
written by gunther gerlach-2009
Current provisions for discovery are based on keyword searches through repositories. Keywords are nominated by service providers through publication and advertising features of software as a service (SaaS) functions. Details of message inputs, outputs, and methods are also captured from WSDL file scans and factored into searches.
Such discovery techniques are suitable in tightly coupled and well-scoped domains where service consumers can determine what services offer and how they can be independently utilized from search results. In other words, users are expected to know what they want before they search.
Gunther Gerlach
written by gunther gerlach-2009
As seen through this section, web service ecosystems can generally be described as a logical collection of web services whose exposure and access are subject to constraints, which are characteristic of business service delivery. A lower level analogy can be found with application servers, where access and inter-operation of components is regulated by middleware functions such as discovery/brokering, remote access, object pooling, transactions, asynchronous messaging, persistence management, and so on.
Gunther Gerlach
written by gunther gerlach-2009
As web services technologies mature, and commercial-scale, service oriented architectures shift from early adoption to mainstream development, a new revolution of service orientation is emerging. Beyond the orchestration of web services in multi-party business processes, a dedicated treatment for procuring web services into different markets is coming into focus.
The first beneficiaries of open procurements of web services are ventures having successfully overcome the dotcom-burst such as Salesforce, StrikeIron, and GrandCentral. These companies leverage XML-based technology to consolidate enterprise application portfolios built by independent software developers for the small to medium markets. Their early successes are paving the way to long-anticipated Amazon/eBay-style marketplaces for web services.
Gunther Gerlach
