21.What Happens When a Client Runs a Service with ACLs?

the server checks the ACL assigned service
If the client is a member of an allowed group and is not a member of a denied group,the server executes the service.if the client is not a member of an allowed group,the server denies the request to invoke the service and stops executing.

22.What Is a Replication Service?

Replication Service is one that IS automatically executes when it prepares to replicate a package

23.What Is a Shutdown Service?

A Shutdown service is the one we can write and add it to the shutdown services list. these services will be executed when the server shuts down. In this service we can write codes to close the network connections, releasing memory etc..

24.What Is a Package?

A package is a container that is used to bundle services and related elements, such as specifications, IS document types, IS schemas, and output templates. When you create a folder, service, specification, IS document type, IS schema, or output template, you save it in a package.

25.What Are Input and Output Parameters?

Name and datatype

26.What Is a Flow Step?

Flow service contains a flow step.flow step is a basic unit of work that webMethods Integration Server interprets and executes at run time.

27.What Is a Flow Service?

Flow service is a service written in webmethods flow language..this is simple yet and power full language.

28.What Does a Flow Service Look Like in Diagram View?

Flow diagram view, like flow tree view, is a view of a flow service that Developer displays in the editor.

29.What Is Dimensionality?

Dimensionality refers to the number of arrays to which a variable belongs.

30.What Are Transformers?

Transformers are the services you use to accomplish value transformations on the Pipeline tab. You can only insert a transformer into a MAP step.
You can use any service as a transformer.
This includes any Java, C or flow service that you create and any built-in
services in WmPublic, such as the pub.date.getCurrentDateString and the pub.string.concat services. By using transformers, you can invoke multiple services (and perform multiple
value transformations) in a single flow step.

31.What Is the Pipeline Editor?

Pipeline Editor is a place which enables Data elements to be visually mapped from a service to another. It also allows the elements to be dropped after or before any service or Hardcore the values of any variable needed for the next step service.

32.What Does an IS Schema Look Like?

The Apperance and content of IS Schema depends on whether you generate an Is Schema from XML shema or DTD If u cretae an IS schema from xml shema ,the resulting IS schema displays type difinitions,element declarations and attribute declarations. If u create an IS schema from DTD,the resulting IS shema displays element type declaration

33.How to Create an IS Schema?

An IS schema can be created by following these steps:

• First create a webMethods document
• Run the service pub.schema:createXSD
• Give the input parameter the fully qualified name of your document. The output parameter xsd/source has the text schema representation of your document. Save this to a file (e.g. sample.xsd)
• In the appropriate folder create a New Schema
• Give the schema a name
• Select XML Schema and give the filename of the saved file (e.g. sample.xsd)

34.What Is Data Validated Against?

During validation, run-time data is compared to a blueprint or model. The blueprint or model is a formal description of the structure and the allowable content for the data. The blueprint identifies structural and content constraints for the data being validated. The validation engine in webMethods Integration Serverconsiders the data to be valid when it conforms to the constraints specified in the blueprint. A blueprint can be an IS schema, an IS document type, or a set of input and output parameters.

35.What Is Data Validation?

Data Validation is the process of verifying that run-time data conforms to a predefined structure and format. It also verifies that the run-time data is a specific datatype and falls within a defined range of values.

36.Is Source Control the Same as Locking?

No. Locking is one component of a full source management solution. Source control is designed to allow the administrator to archive and maintain multiple file revisions. Many source control applications also allow the administrator to tag revisions, run revision history reports, and other functions. Lock functionality allows the user or administrator to control who is working on a particular element at a particular time.

37.What Is a Third-Party Source Control Application?

A third-party source control application is a product designed to help an administrator archive versions of files in a development environment.
Such products include PVCS,CVS, Visual Source Safe, and Perforce.

38.How webMethods Developer Supports Tables?

There is an element called Adapter Service in Web methods.Using this element u can create adapter service like insert,update and delete,select the records from table.Before that u have to create Adapter Connection in Integration server under Jdbc Adapter.

39.What Is a Regular Expression?

Regular Expression in webmethod is a pattern matching technique, highly used in XQL and WQL.

40.What Happens When an Event Occurs?

There are various types of events that occur in Integration Server.e.e Session start, session end, session timeout, alarm, exception etc. These can be seen in Developer Event Manager. Go to Tools menu in the menu bar on the developer and click on Event Manager.
We can invoke a service when a particular event occurs in this event manager. e.g: we can invoke a particular service when an exception occurs in any of the IS services. This is helpfull when we want to implement custom/generic exception handling framework.