| There are two architectural models – commonly referred as SAAS Maturity models- that describe the transition of a service to what is called Multi-tenant efficient, highly scalable application. The SAAS Maturity model described by Microsoft has four distinct stages and is illustrated below. Another similar well-known model for SaaS-maturity is known as Forrester-model but adds another stage known as "Dynamic Business Apps-as-a-service". The three key Attributes of a SAAS Architecture: |
| Configurability: Metadata used to configure the way the application behaves for customers |
| Multi-tenant Efficiency: Maximizing the sharing of resources across tenants |
| Scalability: Maximizing concurrency, resource efficiency |
SAAS Simple Maturity Model (Microsoft, 2006) |
 |
| SaaS Maturity Model (Forrester, 2008) |
 |
Apache CXF is an open source services framework. CXF helps you build Web Services using frontend programming APIs, like JAX-WS and JAX-RS. These services can speak a variety of protocols such as SOAP, XML/HTTP, RESTful HTTP, or CORBA and work over a variety of transports such as HTTP, JMS or JBI. Support for bottom up approach and top down approach. Support for Standards JAX-WS, JSR-181, SAAJ, JAX-RS SOAP 1.1, 1.2, WS-I BasicProfile, WS-Security, WS-Addressing, WS-RM, WS-Policy WSDL 1.1 MTOM Building Web Services – Example 1 Develop a simple Web Service using CXF framework. The example in this case is an InterestRate Service. Tools / technologies Version CXF 2.1 Maven 2.0 Tomcat apache-tomcat-6.0.24 JDK java version 1.6.0_20 The Application Scope The "Interest Rate Service" application demonstrates how easily you can develop a Web Service using CXF frame work. The WSDL service definition defines three operations. Below is the InterestRateService interface. @WebS...
Comments