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Assignment Objectives
Section 1: Application Design Concepts and Principles
 | Explain the main advantages of an object-oriented approach to system
design including the effect of encapsulation, inheritance, and use of
interfaces on architectural characteristics. |
| Describe how the principle of "separation of concerns" has been applied to
the main system tiers of a Java Platform, Enterprise Edition application.
Tiers include client (both GUI and web), web (web container), business (EJB
container), integration, and resource tiers. |
| Describe how the principle of "separation of concerns" has been applied to
the layers of a Java EE application. Layers include application, virtual
platform (component APIs), application infrastructure (containers), enterprise
services (operating system and virtualization), compute and storage, and the
networking infrastructure layers. |
Section 2: Common Architectures
| Explain the advantages and disadvantages of two-tier architectures when
examined under the following topics: scalability, maintainability,
reliability, availability, extensibility, performance, manageability, and
security. |
| Explain the advantages and disadvantages of three-tier architectures when
examined under the following topics: scalability, maintainability,
reliability, availability, extensibility, performance, manageability, and
security |
| Explain the advantages and disadvantages of multi-tier architectures when
examined under the following topics: scalability, maintainability,
reliability, availability, extensibility, performance, manageability, and
security. |
| Explain the benefits and drawbacks of rich clients and browser-based
clients as deployed in a typical Java EE application. |
| Explain appropriate and inappropriate uses for web services in the Java EE
platform |
Section 3: Integration and Messaging
| Explain possible approaches for communicating with an external system from
a Java EE technology-based system given an outline description of those
systems and outline the benefits and drawbacks of each approach. |
| Explain typical uses of web services and XML over HTTP as mechanisms to
integrate distinct software components. |
| Explain how JCA and JMS are used to integrate distinct software components
as part of an overall Java EE application. |
Section 4: Business Tier Technologies
| Explain and contrast uses for entity beans, entity classes, stateful and
stateless session beans, and message-driven beans, and understand the
advantages and disadvantages of each type. |
| Explain and contrast the following persistence strategies:
container-managed persistence (CMP) BMP, JDO, JPA, ORM and using DAOs (Data
Access Objects) and direct JDBC technology-based persistence under the
following headings: ease of development, performance, scalability,
extensibility, and security. |
| Explain how Java EE supports the deployment of server-side components
implemented as web services and the advantages and disadvantages of adopting
such an approach. |
| Explain the benefits of the EJB 3 development model over previous EJB
generations for ease of development including how the EJB container simplifies
EJB development. |
Section 5: Web Tier Technologies
| State the benefits and drawbacks of adopting a web framework in designing
a Java EE application |
| Explain standard uses for JSP pages and servlets in a typical Java EE
application. |
| Explain standard uses for JavaServer Faces components in a typical Java EE
application. |
| Given a system requirements definition, explain and justify your rationale
for choosing a web-centric or EJB-centric implementation to solve the
requirements. Web-centric means that you are providing a solution that does
not use EJB components. EJB-centric solution will require an application
server that supports EJB components. |
Section 6: Applicability of Java EE Technology
| Given a specified business problem, design a modular solution that solves
the problem using Java EE. |
| Explain how the Java EE platform enables service oriented architecture
(SOA) -based applications. |
| Explain how you would design a Java EE application to repeatedly measure
critical non-functional requirements and outline a standard process with
specific strategies to refactor that application to improve on the results of
the measurements. |
Section 7: Patterns
| From a list, select the most appropriate pattern for a given scenario.
Patterns are limited to those documented in the book - Alur, Crupi and Malks
(2003). Core J2EE Patterns: Best Practices and Design Strategies 2nd Edition
and named using the names given in that book. |
| From a list, select the most appropriate pattern for a given scenario.
Patterns are limited to those documented in the book - Gamma, Erich; Richard
Helm, Ralph Johnson, and John Vlissides (1995). Design Patterns: Elements of
Reusable Object-Oriented Software and are named using the names given in that
book. |
| From a list, select the benefits and drawbacks of a pattern drawn from the
book - Gamma, Erich; Richard Helm, Ralph Johnson, and John Vlissides (1995).
Design Patterns: Elements of Reusable Object-Oriented Software. |
| From a list, select the benefits and drawbacks of a specified Core J2EE
pattern drawn from the book – Alur, Crupi and Malks (2003). Core J2EE
Patterns: Best Practices and Design Strategies 2nd Edition. |
Section 8: Security
| Explain the client-side security model for the Java SE environment,
including the Web Start and applet deployment modes. |
| Given an architectural system specification, select appropriate locations
for implementation of specified security features, and select suitable
technologies for implementation of those features |
| Identify and classify potential threats to a system and describe how a
given architecture will address the threats. |
| Describe the commonly used declarative and programmatic methods used to
secure applications built on the Java EE platform, for example use of
deployment descriptors and JAAS. |
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