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310-084 exam Dumps Source : Sun Certified Web Component Developer for Java. EE5 Upgrade
Test Code : 310-084
Test cognomen : Sun Certified Web Component Developer for Java. EE5 Upgrade
Vendor cognomen : SUN
: 119 real Questions
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SUN Sun Certified Web Component
SAN RAMON, California, Feb. four, 2019 /PRNewswire/ -- The Wi-sun Alliance, a world ecosystem of member companies looking for to accelerate the implementation of open requisites-based mostly box enviornment Networks (FAN) and the internet of issues (IoT), today announced that the first wave of contributors occupy efficiently accomplished interoperability testing to eddy into the first solutions to obtain Wi-sun FAN certification.
"specifications and interoperability are key to persevered growth for the IoT business," says Phil Beecher, President and CEO of the Wi-solar Alliance. "the provision of certified Wi-solar FAN options provides on their mission to present utilities, cities and service providers adaptable multi-service networks a satisfactory route to advocate originate inevitable interoperability nowadays and for future generations."
The options from Cisco, Itron, Nissin techniques, Kyoto university, Landis+Gyr, Renesas and ROHM manipulate the wants of utilities, metropolis builders and different provider suppliers to simplify and aid giant-scale, outdoor networks for sensible cities, wise utilities and different IoT rollouts.
Wi-solar FAN is a communications infrastructure for extremely enormous-scale networks, enabling many devices to interconnect on one yardstick network. All Wi-solar licensed items occupy been carefully demonstrated by using Allion verify Labs in Taiwan, the primary peruse at various lab to achieve Wi-solar FAN 1.0 validation, to originate confident the gadgets worked collectively effortlessly and securely to subsist confident fleet time to market. Upon a success test completion, authorised products are accredited to panoply the Wi-sun certified FAN emblem, which shows to users that these items are compliant with open specifications, interoperable, relaxed and scalable and will also subsist deployed with self assurance. To study greater about Wi-sun product certification, gladden visit http://www.wi-solar.org.
Wi-sun FAN licensed items:
Cisco: performed the very first Wi-solar FAN 1.0 certification with its IR509 WPAN Industrial Router, which should subsist deployed into a diverse set of internet of issues purposes including: wise metering, smart grids, distribution automation, supervisory control and data acquisition, and highway lighting fixtures. committed to the Wi-solar program, Cisco has contributed multiple examine bed units for the Wi-solar FAN certification software.
Itron: The Wi-sun FAN certified Itron Bridge5-WS is a key fraction of the Itron community platform that allows cities and utilities to cost-without vicissitude combine industrial IoT and utility control and monitoring devices onto a relaxed, professional and open necessities-based Wi-solar FAN. With this certification, Itron continues its long-time management within the Wi-solar Alliance leading up to this milestone, including tremendous contributions to the construction of the FAN Technical Profile, Compliance check map and examine mattress.
Nissin techniques, Kyoto school, and ROHM: Collaborated on the development of the EW-WSN BP35C4, which has carried out Wi-solar FAN certification. The EW-WSN BP35C4 is a multi-goal module compliant with Wi-sun FAN 1.0 router with a UART interface. it is light to integrate in wise utilities and numerous IoT devices.
Landis+Gyr: The N550 community Node is a vital fraction of Gridstream® join, the trade main utility IoT retort that grants flexibility for applications akin to AMI, distribution automation, client engagement, wise cities, DER integration and extra. For more information gladden consult with: https://www.landisgyr.com/solution/gridstream-join/
ProCubed: offered peruse at various tools for the certification checking out atmosphere together with:
1) ProShark Plus (Wi-sun FAN 1.0 Protocol Analyzer), 2) verify bed Controller (seasoned-Si-sun FAN1.0-915-TBC
Renesas: chosen to provide some of the interoperability test bed devices for the Wi-sun FAN certification program and achieved Wi-sun FAN 1.0 certification with its RF (RAA604S00)+ MCU (RX651) wireless solution.
be inevitable to consult with us at DistribuTECH 2019The Wi-solar Alliance will present off Wi-solar FAN certified solutions from Cisco, Itron, Landis+Gyr, Nissin systems and Renesas at DistribuTECH 2019 in sales space 11225.
be fraction of the Wi-sun Alliance and utilities Hawaiian electric, Xcel energy and Avangrid for the smart city/IoT panel session: province enviornment Networks pilot Utility and wise metropolis Initiatives on Wednesday, February sixth, 2019, from 1:30 p.m. - three:00 p.m. in rooms 280-282.
Panelists will focus on how enthusiasts are becoming a essential component in the creation of smart cities.
additionally finish not leave out the increasing the Grid potential Hub on the demonstrate flooring sales space 12031 scheduled for Thursday, February seventh from 10:00 AM -eleven:00 AM. Iker Urrutia from Iberdrola will talk about interoperability applied to smart metering and the route Wi-sun technology is the conversation protocol chosen to manipulate the challenge for an upcoming project within the status of stout apple. Phil Beecher, President and CEO of the Wi-solar Alliance will give a top flush view of the Wi-solar Alliance organization, the specification for box zone Networks, and an update on certification status, technical collaborations with other businesses, and plans for the long run.
about the Wi-solar AllianceThe Wi-solar Alliance is a worldwide non-income member-primarily based affiliation made up of trade main agencies. Its mission is to coerce the international proliferation of interoperable wireless options for employ in smart cities, sensible grids and different information superhighway of things (IoT) applications the usage of open world necessities from companies, comparable to IEEE802, IETF, TIA, TTC and ETSI. With greater than 200 participants worldwide, membership of the Wi-sun Alliance is open to totality industry stakeholders and comprises silicon providers, product providers, features providers, utilities, universities, firms and municipalities and local executive organizations.
For greater assistance, gladden discuss with: www.wi-sun.org.
Wi-sun Alliance and the Wi-sun Alliance brand are logos of the Wi-sun Alliance.
source Wi-sun Alliance
No result found, try modern key phrase!"here is a vital subsequent step for interoperability and encourages development of smart infrastructure add-ons utilities can employ to ... whereas supporting modern energy distribution techniques. totality Wi- ...
The solar certified Java Programmer (SCJP) is a professional in regards to the fundamentals of the Java programming language, and qualified SCJPs are Popular by route of a wide array of agencies engaged in utility construction. The SCJP examination is also a prerequisite to better-degree certifications in different Java-connected areas, reminiscent of internet components, business add-ons, internet services and mobile applications.
learning Paths accessible via solar, school classes also obtainable
Programming languages, firm, math knowledge, knowing of abstract concepts
Median income (2015)*
$seventy nine,530 for computer programmers$ninety eight,260 for application functions developers
Job boom (2014-2024)*
-8% for desktop programmers19% for software functions builders
supply: *U.S. Bureau of Labor records
sun Microsystems offers several 'getting to know Paths' to certification, for college students with minimal prior adventure or these generic with different programming languages. Many other institutions, from technical faculties to universities, proffer working towards in Java principles, recommendations and development methods, and totality of these classes establish together the scholar to subsist a superior Java programmer, and assume the solar certified Java Programmer exam. the two-hour examination ought to subsist taken at a licensed checking out facility, and there are not any specific prerequisites.
a company figuring out of computer systems, programming languages and advanced programming ideas would establish you on the quick music to a career as a sun licensed Java Programmer. students with tiny programming event however respectable math aptitude, organizational potential and an realizing of summary concepts may still believe taking a newbie's stage path in desktop concepts earlier than the SCJP training. sun offers sun certified Java affiliate (SCJA) working towards for non-technical students, and different introductory computing device courseware is largely purchasable.
career and fiscal Outlook
based on the U.S. Bureau of Labor data (BLS), the median annual revenue in 2015 for purposes utility developers become $ninety eight,260. desktop programmers made a median annual salary of $seventy nine,530 within the identical 12 months, but there became no selected records for sun-licensed Java programmers. Jobs for computing device programmers will decline with the aid of eight% during 2014-2024, whereas application utility builders will observe raises of 19% in line with the BLS. Programmers and utility builders experienced in a broad latitude of applied sciences, peculiarly currently Popular ones enjoy Java, should still proceed to occupy the optimal employment possibilities.
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Passionate about learning theory Kathy Sierra has dedicated fraction of her life to originate learners’ lives easier by transforming the route of teaching. Author of the Head First programming engage series, trainer, and former blogger, Kathy stands out in their list for her innovative contributions in computer science education.
Sierra has a background as a game designer (for Virgin, MGM, and Amblin Entertainment) and teacher of modern Media Interactivity at the University of California Entertainment Studies. Also, she worked as a Master Trainer at Sun Microsystems (the company that created the Java programming language), teaching others how to discipline Java and developing certification exams, such as the Sun Certified Web Component Developer. Furthermore, she founded one of the world’s largest Java community websites javaranch.com and was the author of the once Popular blog Creating Passionate Users. Over the years, she has dedicated her life to transfer lore and inspire others to teach.
Head First Book Series
Kathy is the creator together with Bert Bates of the Popular Head First string of introductory instructional books published by O’Reilly Media. The goal of the books is to focus in metacognition, most especially in how the brain works and how to exploit it for better learning and memory.
The space between the lessons and rehearse is where the learning is made permanent.
The learning principle behind the Head First books is that “first you occupy to find it and then originate confident you don’t forget it”. It’s not about forcing facts into your head and presenting pages of just text. Sierra’s books are based on making the message visual (putting images and words near the graphics they relate), using a personalized style (telling stories and using casual language), and getting the learner to believe deeply (by motivation and engagement).
Kathy understood that learning can subsist frustrating at the tower but that shouldn’t subsist a barrier. So, she concentrated in stimulating the apprentice’s brain by using attention-grabbing tactics, such as a thought-provoking page layout, peculiar examples, puzzles, jokes, and some other techniques. The books don’t exhaustively cover every aspect of the languages, but they certainly integrate a distinguished route to approach the unknown.
Example Page oh Head First Java
At the present time, Kathy is more focused in product development, marketing and user experience. Inside the business of software, she has been helping great companies, miniature start-ups, non-profit organizations, and educators rethink their strategy to user experience. In one of her most recent books Badass: Making Users Awesome, Sierra talks about the sociological side of the product development — “how to build badass users, not just badass products”. With the premise that every undergo has the potential to subsist transformative, she puts the target in building an approach to assist the user occupy deeper and richer experiences instead of focusing in persuasive marketing strategies.
“Upgrade your user, not your product. Don’t build better cameras, build better photographers.”
Trouble at the Koolaid Point
In 2007 Kathy Sierra was a role model for women in tech, she was teaching Java at Sun Microsystems, her books were best sellers and she was flourishing on her design and coding blog posts. But totality of a sudden, her public appearances were abruptly suspended, and she withdraw from online activity for several years.
Some time before that, she wrote about the “The Koolaid Point” (a threshold at which enough users become so passionate that others accuse them of drinking the koolaid), the haters or trolls of discussion forums:
You don’t really occupy passionate users until someone starts accusing them of “drinking the koolaid.” You might occupy cheerful users, even loyal users, but it’s the truly passionate that piss off others enough to motivate them to whine something. Where there is passion, there is always anti-passion… or rather fire in the abominate dimension.
It totality started with receiving criticism on technical matters and ended with rape and death threats. Kathy said to occupy suffered doxxing, swatting, physical assault and stalking, “real-life damage”. This harassment and trolling against Sierra made her back up.
Later I learned that the first threat had nothing to finish with what I actually made or said in my books, blog posts, articles, and conference presentations. The real problem — as my first harasser described — was that others were tower to pay attention to me. He wrote as if mere exposure to my work was harming his world.
Kathy Sierra pushed back the frontiers of knowledge. Her fire for helping others learn and devour programming made her occupy such an repercussion in the world of computers that many of us are indebted to her. While she might occupy taken a distance from the public, her lasting influence lives on with every beginner that’s able to occupy a shot at a career in programming, thanks to her dedication and love.
Language and Runtime Support
Java. Developed in 1995 by Sun. totality code is compiled into bytecode and interpreted by a virtual machine (JVM). May also subsist selectively JIT compiled, depending on the JVM, or fully natively compiled with ancillary products (such as JOVE). Can flee on any platform that supports a JVM. IBM supports v1.3 of the J2SE SDK.
VBScript and JScript for Web pages and any COM-based language for server components (typically VB or VC++). Scripts are interpreted, while components are natively compiled. VB code also requires a runtime DLL (MSVBMxx.DLL). VBScript and JScript came into employ in 1997, while COM grew out of OLE in 1993.
Any language that supports the Common Language Runtime (20-plus in development). Initially compiled to an intermediate language (MSIL) and then JIT compiled to endemic code by the CLR at runtime or natively compiled (PreJit) at install time. Code written for the CLR is referred to as managed code. advocate for the CLR will subsist shipped with future OSes starting with Windows XP Server released by the End of 2001.
Standard Java classes organize in the J2SE, plus the APIs (JDBC, JSP, EJB, JMS, JAXP, JCA, JFC, JNDI, and so on, as defined in the J2EE specification). In addition, vendors embrace their own extensions to J2EE for integration and differentiation in the marketplace.
Win32, COM, MFC, ATL, and ASP. Five primary programming models that hold APIs that developers employ in building solutions.
Services Framework. A hierarchical set of managed classes arranged in namespaces. Provides a consistent programming model and unifies the APIs needed to build solutions.
Java Package. Collection of Java classes assembled as a unit and arranged hierarchically. fragile versioning. Server-based deployment uses XML-based deployment descriptors, which are read and handled differently by each vendor's implementation. WebSphere includes an application assembly tool to manipulate this process.
DLL, EXE. DLLs hold a collection of functions with fragile versioning. EXEs represent an executable program with fragile versioning. COM components are housed in DLLs, reliance on the registry, and advocate immutable interfaces but no runtime version checking. Server-based installation accomplished through third-party utilities such as InstallShield.
Assembly. Unit of deployment, security, and versioning. Includes built-in PKI advocate and metadata to tightly control binding of assemblies at runtime. advocate exists in the class loader of the CLR for consistency and version checking. Server-based deployment can subsist done in a no-impact style by simply copying the relative paths that hold the application. Applications also can explicitly participate components. advocate for the Windows Installer included in VS.NET.
Active Server Pages (ASP 2.0). Technology introduced by MSFT in 1997 in which pages containing server-side code are interpreted by an ISAPI server extension and can employ simple HTTP caching through headers. No endemic advocate exists for different devices, and there are no client-state services other than cookies. ASP runs primarily on IIS 4.0/5.0 but has been ported to other platforms (see Chili!Soft, purchased by Sun). Performance of JSP and ASP is similar on similar hardware platforms.
ASP.NET. ASP.NET pages are compiled into MSIL either statically or on the sail when a request is made. Server control architecture allows abstraction for different devices and status storage across HTTP POST events. Server controls allow developers to create "adaptive controls" to render HTML, WML, and so on as appropriate for the client platform. Runs on IIS 4.0/5.0. Beta performance tests testify a 200–300% improvement over JSP and ASP.
Web Server Processing
HttpServlets provide a request/response model available to Java classes in addition to session-state services keyed with a client cookie. JSPs often call servlets as the controller that acts as the broker between presentation and business service layers to provide separation between the HTML and Java code. Because of the complexity of writing servlets many "two-tier Web apps" simply occupy the servlets originate direct calls to the underlying database via JDBC. This leads to spaghetti code that is difficult to debug and maintain. The servlet engine is included in WAS and includes a JDBC connection manager that handles database connection pooling. WAS 4.0 is v2.2–compliant.
The ASP runtime implemented in the ISAPI server extension provides a request/response model in addition to session- (keyed with a client cookie) and application-state services. ASP pages often call business services directly implemented as COM components, although many "two-tier Web apps" simply occupy the ASP pages originate direct calls to the database via ADO. This leads to spaghetti code that is difficult to debug and maintain.
The HTTP Runtime in ASP.NET provides an extensible mechanism by which developers can hook into the processing of resources on the Web server through HTTP Modules. Provides very tense integration with the Web server. also supports a request/response model and application- and session-state services. Session-state services can subsist deployed on a sever server to enlarge scalability. Provides a sophisticated caching mechanism for pages and programming code. Provides complete separation of HTML code and programming logic through code behind.
Enterprise Java Beans (EJB). fraction of the original J2EE specification in 1998. Java classes that are deployed in component-oriented middleware (a container) that provides interception and adds services such as distributed transactions (using the Java Transaction Service [JTS] based on the OMG and using IIOP), security, and database connectivity. The container can flee on the selfsame server or remotely. EJBs advance in two flavors: entity beans and session beans. Entity beans map to the status of an kick as represented by a row in a database. Entity beans provide the mapping to the database and caching of the entity. Entity beans advance in two styles: Container Managed Persistence (CMP) and Bean Managed Persistence (BMP). CMP beans allow the container to manage loading and saving the database information, whereas BMP beans provide methods for the developer to insert JDBC code directly. Session beans advance in two flavors: stateful and stateless. Stateful beans maintain a conversation with a solitary client, whereas stateless beans can subsist reused by multiple clients, with the container handling the allocation. WAS 4.0 is EJB 1.1–compliant.
Microsoft Transaction Server (MTS). Provides component-oriented middleware for COM components introduced in 1996. Provides interception and adds distributed transactions through the Microsoft Distributed Transaction Coordinator service (MSDTC), security, and kick activation support. Objects can subsist both stateful and stateless, depending on administrative settings. Programmers assume odds of MTS services through the employ of an API. Only components built in VC++ are free-threaded and thus achieve better. No advocate for automatically mapping database rows to kick instances exists.
Component Services (COM+ 1.0). Released with Windows 2000 in 2000 and provides component-oriented middleware for COM components. Provides interception and adds distributed transactions, security, kick construction, kick pooling, queued components (for asynchronous integration with MSMQ), loosely coupled events for publishing and subscribing to components, and activation support. Objects can subsist both stateful and stateless, depending on administrative settings. Although built for COM, .NET programmers create serviced components in .NET by deriving their class from a system class and decorate it with attributes to represent the services that it uses. The system class then communicates with COM+ via Win32 and COM APIs. No advocate for automatically mapping database rows to kick instances exists. (The IMDB product that was removed from prerelease versions of COM+ would occupy served a similar purpose as entity beans, although the ADO.NET DataSet kick serves a similar purpose.)
JDBC. Data Access API that allows SQL access to a tabular data source via drivers (there are currently 159 listed on Sun's site under 4 different types, ranging from JDBC to ODBC bridges to fully native-protocol Java implementations). Various drivers advocate connection pooling, distributed transactions, and rowsets, and some are J2EE-certified. The API is similar to the Win32 implementation of ODBC. JDBC 2.0 is the spec under J2EE 1.2, but 3.0 has been defined. Note that when using entity beans with CMP, the container provides the mapping to the database tables through a vendor-specific mechanism. WAS 4.0 supports JDBC core v2.1 and Extensions 2.0. WAS includes providers for DB2, MSSQL, Oracle, Informix, and Sybase.
ADO/OLE DB. OLE DB is both a specification for COM interfaces that database vendors implement (OLE Providers) and a set of services (such as cursor processing and connection pooling) implemented in Windows to provide data access to a variety of data sources. ADO is a simplified automation layer that sits on top of OLE DB to provide data access to scripting languages and COM-based languages such as VB. Although typically used for tabular data access, both ADO and OLE DB can subsist used to access nonstructured data such as email and XML. OLE DB also can subsist used to access data through the plethora of available ODBC drivers.
ADO.NET. A set of managed classes that provides access to data sources through what are called managed providers. These embrace TDS (SQL Server), OLE DB providers, and ODBC drivers. Each managed provider implements connections and connection pooling, commands/parameters, forward-only cursor processing, transaction processing, and error handling. ADO.NET also includes a middle-tier data cache kick called a DataSet that provides an XML-based cache of data that can subsist used to bind to controls and synchronize changes to a data source through an adapter kick implemented by the managed provider. Designed to advocate a loosely connected model with built-in XML representation of the data and XSD representation of the schema. Developers can work with relational data as XML data, and vice versa through the XMLDataDocument class.
Java Messaging Services (JMS). JMS is a set of client interfaces to message-oriented middleware (MOM) products that supports both message queues and publish-and-subscribe metaphors. MOM vendors implement JMS providers. JMS includes a specification for a modern sort of EJB, message beans. WAS includes the (WebSphere MQ) MQSeries JMS provider. WAS 4.0 is compliant with the 1.0.2 specification and includes advocate for JMS-XA distributed transactions across MQSeries-enabled systems and databases. requisite to obtain WebSphere MQ separately.
Microsoft Message Queue Server (MSMQ). A MOM server product running on NT 4 and W2K that supports message queues but does not embrace a publish-and-subscribe feature built into the product. The product includes a COM-based API for sending and receiving messages and administering queues. Supports distributed transactions through MSDTC. MSMQ is built into Windows NT 4.0 Server.
System.Messaging. A set of managed classes that provide the administrative and client APIs for working with MSMQ servers. MSMQ is built into Windows 2000 Server. It should subsist famous that developers can access MSMQ through queued components (QC) supported by COM+ 1.0. QC acts as an abstraction layer to allow clients to asynchronously originate manner calls on components that are backed by MSMQ.
Java Foundation Classes (JFC). JFC includes the Abstract Windowing Toolkit (AWT) and sway as Java APIs for building GUII applications. sway is a more abstract API and includes a "look and feel" for developing the selfsame GUI on multiple platforms or adhering to a platform standard. Advanced graphics can subsist created with the Java2D and 3D APIs. GUI apps flee as standalone applications or applets running in a browser.
Win32/ActiveX. Applications written in VB, VC++, or other Windows development tools. Ultimately these tools originate calls to the Win32 API for the underlying window management. ActiveX is a COM-based technology for building reusable binary visual components (.ocx) across development environments. Applications flee as standalone applications or as ActiveX controls hosted in MSIE. Advanced graphics are available through the DirectX set of COM-based APIs.
Windows Forms. Set of managed classes that allow for the creation of forms-based applications. Takes odds of modern Windows 2000 features such as nonrectangular forms. Includes a managed control architecture to build reusable visual controls. Third parties will provide wrappers for DirectX functionality. Windows Forms–based applications can flee as standalone applications or can subsist hosted in MSIE on clients with the CLR installed.
J2EE Connector (JCA). JCA is a specification based on the IBM Common Connector Framework (CCF). WAS contains WAS adapters used to connect to packaged applications such as JDEdwards, SAP, Peoplesoft, and so on. These are JCA-compliant and are shipped with VisualAge for Java. You can also build modern adapters using the MQSeries adapter offerings. WAS AE multiserver version only.
SNA Server 4.0. Server product that includes OLE DB and ODBC advocate for AS/400 and DB2. also includes COM Transaction Integrator (COMTI) for working with CICS and IMS transactions as if they were COM objects. Includes MSMQ-MQSeries bridge and host printing services, among others. Basically, this is COM-based integration, and there are also connectors to packaged products such as the SAP DCOM Connector.
Host Integration Server 2000. Update of SNA Server. also includes integration with Commerce Server, BizTalk, vigorous Directory, and Windows Management Instrumentation (WMI). BizTalk also supports application-integration components (AIC) that can subsist built to integrate with packaged applications; for example, there is a SAP R/3 AIC available.
Java API for XML Parsing (JAXP). An API and abstraction layer to deal with various XML parsers. Not included in the J2EE 1.2, but 1.0 is in 1.3. v1.1 supports XSLT and DOM flush 2 and SAX v2.0. IBM has a 100% Java validating XML parser with JAXP advocate available on its Web site. WAS includes advocate for DOM 1.0, SAX 1.0, and XSLT 1.0.
MSXML. Microsoft's COM-based XML parser, included as a standalone addition to the OS and in products such as MSIE. Version 3.0 sp1 is the current version, with v4.0 as a technology preview on the MSDN Web site. V3.0 supports XSLT, XPath, and SAX2. Implements much of the DOM functionality specified by the WS3C, in addition to SAX advocate for event-based processing of great XML documents.
System.Xml. A set of managed classes that implement the DOM, XSLT, and XPath specifications by the W3C. Supports both a tree-based model (DOM) and an innovative stream-based approach for parsing XML documents. also contains a class that maps XML documents to the ADO.NET DataSet class to provide XML-based access to relational data.
WAS ships with the Apache SOAP 2.2 tool support. The toolkit is SOAP 1.1–compliant. Can expose Java classes, EJBs, BSF scripts, or DB2-stored procs as a Web Service. Includes a command-line utility to publish EJBs as SOAP services. development tools hold wizards to create WSDL from an existing Java application or read WSDL to create a server stub or client proxy. UUDI4J advocate is also included for client-side interaction with UDDI registries.
SOAP Toolkit 2.0. Downloadable. Current release is sp2. Provides a COM wrapper for implementing Web Services. Wizard exposes COM objects as a Web Service using ASP or IIS ISAPI extensions. advocate for WSDL 1.1. A sever UDDI SDK is available for download, and provides a COM API for building and querying a UDDI registry. The toolkit integrates into VS 6.0 so that creating Web Services from COM components is straightforward.
.NET Framework. SOAP 1.1 is implemented in a variety of the basis class libraries and, therefore, is very tightly integrated from both consumer and implementer perspectives. Allows individual methods in managed classes to subsist exposed as Web Services through an ascribe of the framework. Automatic creation of WSDL from XSD schemas and managed classes. Automatic creation of managed client proxies from WSDL through the command line and UI in VS.NET with complete Intellisense. A sever UDDI SDK is available for download that provides managed classes for building and querying a UDDI registry.
Remote manner Invocation (RMI)-Internet InterORB Protocol (IIOP). Provides the programming model (RMI) and the protocol layer for (CORBA IIOP) Java-to-Java communication. Servlets and applets communicate with EJBs via RMI. Assumes a tightly bound model that creates firewall issues and is not well suited to the Internet.
DCOM. Extension of COM for component communication across the network using any of the Windows NT network protocols. Includes remote activation and security features. Remoting of kick instances must subsist specifically programmed into the COM objects themselves. Assumes a tightly bound model that creates firewall issues and is not well suited to the Internet.
.NET Remoting. Implemented in a set of managed classes. Allows managed code to communicate across app domain boundaries. Can communicate via HTTP or TCP channels. Supports remoting of kick instances via binary or SOAP protocols. Supports singletons and client activation. The employ of HTTP and SOAP promotes a loosely coupled architecture that does not incur firewall problems.
Java Naming and Directory Interface (JNDI). Programming interface that provides access to directory services such as DNS, LDAP, Novell (NDS), and CORBA COS through vendor-specific providers.
WAS 4.0 is JNDI 1.2–compliant for EJB lookup. The IBM SecureWay Directory 3.2.1 product is included in WAS for access to vigorous Directory, Lotus Domino, and NDS.
Active Directory Services Interface (ADSI). COM programming interface that supports access to NT, LDAP, and Novell (NDS) directory services through vendor-specific providers.
Active Directory and System.DirectoryServices namespace. Windows 2000 Server includes the distributed directory used in a Windows 2000 domain while the managed classes, in DirectoryServices provide a wrapper around the ADSI interfaces to programmatically access a directory.
WebSphere Studio, Visual Age for Java. Both ship with WAS. Studio is used to build the visual representation of Web pages and JSPs, while Visual Age is used for Java coding of servlets, beans, and EJBs.
Visual Studio 6.0, released in 1998 (three IDEs). sever IDEs exist for VC++/Visual Interdev for ASP development, and VB for contour and component development. Graphical Web development.
Visual Studio.NET. solitary IDE that supports unified debugging, project management, Intellisense, Server Explorer, graphical editor for the Web and forms, class view, dynamic help, add-ins, and scripting. Can subsist used to build console applications, Windows Forms, Web Forms, Web Services, Windows Services, and components. Third-party compiler vendors can plug into VS.NET.
ebXML. An industry specification (not a shipping product) for performing business-to-business transactions using XML and the Web. Includes some advocate for SOAP. Not implemented in WAS. Would requisite to roll your own infrastructure perhaps using Web Services.
No advocate on NT 4. Would requisite to roll your own infrastructure using the SOAP Toolkit and Windows services.
BizTalk Server 2000, released in 2000. A sever server product that provides a messaging/scheduling engine and business process orchestration facilities. Messaging includes advocate for EDI, SOAP, and Rosettanet grammars, in addition to others.
For organizations that must occupy platform neutrality, J2EE is the only alternative. The Java language is becoming more widely accepted. Vendors such as IBM proffer a single-vendor solution when dealing with legacy applications. Separation of application logic and presentation exists, although, in practice, this is underutilized. EJB model includes automatic database-mapping facilities through CMP.
Large basis of VB/ASP developers, resulting in reduced costs. Runs on commodity servers that can subsist scaled out. Software costs are low. Multiple language advocate through COM. tense integration with the predominant client platform (Windows).
Multiple languages supported with a common set of class libraries. Unified programming model with the Services Framework. tall productivity development environment. Web application performance. Runs on commodity servers that can subsist scaled out. Separation of application logic and presentation exists. Greater integration with XML and Web Services protocols. tense integration with the predominant client platform (Windows).
Single-language solution. Smaller basis of developers. EJBs are tangled and not widely used. Thus, JSPs are overused, resulting in spaghetti code. Varying levels of J2EE conformance across vendors. The requisite to employ vendor-specific features leads to vendor lock-in. Performance varies due to vendor-specific implementations. Software cost is generally higher, developer costs are higher, and deployment time is increased.
Highly fragmented programming model. COM infrastructure is unwieldy, leading to DLL hell and versioning problems. ASP pages that finish not utilize COM for business and data-access services lead to spaghetti code. Single-vendor solution.
Not a shipping product. OO nature of CLR makes development initially more complicated for VB/ASP developers. Single-vendor solution. Does not advocate an automatic mapping of database rows to objects as with CMP, although there is widespread disagreement within the industry as to whether entity beans are desirable because they finish not promote transactional consistency and are questionable in terms of performance. For more information, observe Roger Session's Web site.
Capturing the private cloud
For great organizations, keeping resources in-house could subsist the route to ebb — if you can lucid a few hurdles
By Joab Jackson
Jul 13, 2009
The information technology industry is totality abuzz over cloud computing, but government agencies might requisite to sit on the sidelines until vendors work out security and procurement issues. totality those benefits that accrue with this modern approach to computing — flexibility with resources and savings with consolidation — will occupy to wait.
Or will they? At the Federal IT on a Budget Forum in Washington recently, Jim Whitehurst, president and chief executive officer of Red Hat, urged agencies to build their own clouds.
"There is a significant amount of value in a cloud infrastructure for a solitary entity that is running multiple programs and multiple data centers," Whitehurst said. If an agency is running more than 1,000 servers, it could redeem money and become more flexible with its processor resources by building an internal cloud computing infrastructure, he said. A private cloud could proffer almost totality the benefits of a public cloud but without the attendant security and privacy headaches.
"What is the capitalize of a public cloud? For most great agencies in the government or even medium-sized agencies, there is a not a lot of purchasing cost odds with going to a third-party cloud," Whitehurst said. "The real capitalize is getting tall utilization of your existing infrastructure and flexibility around that."
Whitehurst said Red Hat has more than 50 enterprise customers with private clouds. "They are seeing huge benefits [by] running clouds themselves," Whitehurst said. One customer he spoke with, a chief information officer of a great organization running 25,000 processors, told him that public-cloud services such as Amazon.com would not provide much of a cost odds to his organization because his company could obtain servers at almost the selfsame cost as those providers.
In March, IT analyst solid McKinsey & Co. released a report arguing that although miniature and midsize organizations could redeem money by using public-cloud services, great organizations could redeem money by keeping their processing needs in-house.
The solid estimated that if an organization could consolidate servers and withhold the operational costs of the resulting data focus to $45 per month per CPU, it could devour this computational power at a rate that would subsist less expensive than the cost of running operations on, say, Amazon's Elastic Compute Cloud.
"The cloud is just a fancy term for globally accessible resource pool," said Maj. Carl Brodhun, a lead information architect for the Marine Corps' Systems Command, who spoke at the forum about the Marines’ private-cloud deployment. "The key to cloud computing is the business processes that allow people to leverage the technical advancements associated with virtualization."
Private cloud reporting for duty
How finish you set up a cloud? Most, though not all, of the technologies are available for an organization to establish together a computing-as-a-service offering.
To set up a private cloud, an agency would pool totality its servers and proffer the processing power to each department, Whitehurst said. Although such a step is easier said than done, some agencies are attempting this approach, or at least parts of it.
Rather than build a cloud computing infrastructure, the Army Research Laboratory is re-engineering its application layer in a cloudlike fashion.
"Although we're not doing virtualized compute resources, their application architecture represents a lot of what you'd enjoy to observe in a cloud — we're doing real-time provisioning, service-level agreements...dynamically monitoring services," said Dennis Reedy, a system architect and adviser for ARL supporting contractor Altus Engineering, speaking at the JavaOne conference held recently in San Francisco.
The lab is updating its Modular Unix-based Vulnerability Estimation Suite. Version 3 of MUVES is a complete rewrite of a general-use modeling and simulation application that ARL has used for the past 20 years. Among other uses, the agency employs the software to measure how much damage bullets, bombs and other projectiles can finish to vehicles.
Unlike the previous version of MUVES, the modern software will subsist a distributed architecture, one in which different functions of the applications are broken into tiers, which then could subsist flee on different workstations or servers. The software will subsist "composed over numerous services on a local network," said ARL computer scientist Ronald Bowers, who also spoke at the JavaOne presentation. The client software, which resides on the user's workstation, interacts with gateway software, which pieces together the needed components from various services elsewhere on the network, including other workstations. To confront the persistence problem, material that is not currently needed is moved to storage.
For an organization to build a private cloud, the first step will subsist to consolidate the servers. They could subsist consolidated into a solitary data focus for management efficiency. A second data focus could subsist set up as backup.
Most, although not all, cloud providers employ some contour of server virtualization technology, such as commercial offerings from Citrix Systems, VMware or Microsoft. The common conception is that each physical server could host multiple virtual servers, or virtual containers, each running an application. The software being placed in a cloud has to subsist installed in virtual containers, and totality the virtual containers requisite to subsist placed in a repository, where they can subsist called up as needed.
These virtualization tools totality occupy management consoles, which allow administrators to withhold an eye on the virtualized machines, initiate modern instances of applications and lope them from one server to another. Some of those applications proffer some automation capabilities, though an organization would requisite to script the workflow for automated operations. In addition, load balancers would subsist needed in the front End to divide the work across multiple virtual machines.