Differences between Convensional interfaces and XI interfaces

hi,
wat do u mean my "Convensional interfaces"?
let me know.
kvr

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Difference between facades, suites and utilities

Greetings,
I am in learning phase of plugin developement. I want to ask some basic question as what is the difference between utility, facade and suite interfaces? How to decide which one to use?
Thanks.

Hello Vinodh,
Enterprise Extensions are bundled, and thus delivered together, in each Enterprise Add-On. None of the individual Extensions show any dependencies with the others. Thus, they represent decoupled software units; each Extension is then implemented using a structure package.
Thus, SAP IS Auto and SAP IS- Utilities are Enterprise Add-Ons.
Following is the detailed link in this regard:
http://help.sap.com/saphelp_nw2004s/helpdata/en/fd/f39deeae6f11d596c000a0c94260a5/content.htm

The difference between IEEE802.1Q Native VLAN sub-interface and Physical interface?

Hello
I think the following topologies are supported for Cisco Routers
And the Physical interface also can be using as Native VLAN interface right?
Topology 1.
R1 Gi0.1 ------ IEEE802.1Q Tunneling L2SW ------ Gi0 R2
R1 - configuration
interface GigabitEthernet0.1
encapsulation dot1Q 1 native
ip address 10.0.0.1 255.255.255.0
Topology 2.
R1 Gi0 ------ IEEE802.1Q Tunneling L2SW ------ Gi0 R2
interface GigabitEthernet0
ip address 10.0.0.1 255.255.255.0
And is it ok to use the physical interface and sub-interface with dynamic routing such as EIGRP or OSPF etc?
R1 Gi 0 ---- Point to Multipoint EIGRP or OSPF ---- Gi0 R2 / R3
Gi 0.20--- Point to Point EIGRP or OSPF --- Gi0.10 R4 (same VLAN-ID)
R1 - configuration
interface GigabitEthernet0
ip address 10.0.0.1 255.255.255.0
interface GigabitEthernet8.20
encapsulation dot1Q 20
ip address 20.0.0.1 255.255.255.0
Any information is very appreciated. but if there is any CCO document please let me know.
Thank you very much and regards,
Masanobu Hiyoshi

Hello,
The diagram is helpful.
If I am getting you correctly, you have three routers interconnected by a switch, and you want them to operate in a hub-and-spoke fashion even though the switch is capable of allowing direct communication between any of these routers.
Your first scenario is concerned with all three routers being in the same VLAN, and by using neighbor commands, you force these routers to establish targeted EIGRP adjacencies R1-R2 and R1-R3, with R1 being the hub.
Your second scenario is concerned with creating one VLAN per spoke, having subinterfaces for each spoke VLAN created on R1 as the router, and putting each spoke just in its own VLAN.
Your scenarios are not really concerned with the concept of native VLAN or the way it is configured, to be honest. Whether you use a native VLAN in either of your scenarios, or whether you configure the native VLAN on a subinterface or on the physical interface makes no difference. There is simply no difference to using or not using a native VLAN in any of your scenarios, and there is no difference to the native VLAN configuration being placed on a physical interface or a subinterface. It's as plain as that. Both your scenarios will work.
My personal opinion, though, is that forcing routers on a broadcast multi-access segment such as Ethernet to operate in a hub-and-spoke fashion is somewhat artificial. Why would you want to do this? Both scenarios have drawbacks: in the first scenario, you need to add a neighbor statement for each spoke to the hub, limiting the scalability. In the second scenario, you waste VLANs and IP subnets if there are many spokes. The primary question is, though: why would you want an Ethernet segment to operate as a hub-and-spoke network? Sure, these things are done but they are motivated by specific needs so I would like to know if you have any.
Even if you needed your network to operate in a hub-and-spoke mode, there are more efficient means of achieving that: Cisco switches support so-called protected ports that are prevented from talking to each other. By configuring the switch ports to spokes as protected, you will prevent the spokes from seeing each other. You would not need, then, to configure static neighbors in EIGRP, or to waste VLANs for individual spokes. What you would need to do would be deactivating the split horizon on R1's interface, and using the ip next-hop-self eigrp command on R1 to tweak the next hop information to point to R1 so that the spokes do not attempt to route packets to each other directly but rather route them over R1.
I do not believe I have seen any special CCO documents regarding the use of physical interfaces or subinterfaces for native VLAN or for your scenarios.
Best regards,
Peter

Difference between abstract interface and normal interface

Hello Friends,
What is the Difference between abstract interface and normal interface?....

What is the Difference between abstract interface and
normal interface?....The difference is that you didn't follow convention in the first case. All interfaces are implicitly abstract so you don't have to declare them as such.

Difference between Conversion progs and INTERFACES

Hi plz tell me ...
whats the difference between Conversion progs and Interfaces in ABAP .
wat are conversion progs ( exmple) and interfaces ( exmple ) ?
thnks in advance....

Hi
CONVERSION programs are the ones which have one time usage, usually when a legacy system is being replaced by a system like SAP, then the data has to be mapped from the legacy system to SAP system. Here the data to be converted is given on a flat file & is uploaded to SAP tables mostly using LSMW only. Conversions programs are BDC,BAPI and LSMW programs in which you upload all the related tables from the flat files.Those are one time programs.
Interface programs are those programs in which you fetch the data from the application server and process on theose data.These are helpful when you have to run any program in the backgroup when the presentation server is not working.
INTERFACE programs are the ones which are run at regular intervals, say weekly, monthly or even daily. Here the legacy system continues to co-exist along with SAP system, the legacy system might be useful for certain functionalities but the data might have to run thru SAP transactions for complex data maintenance at regular intervals.
In Simple
CONVERSIONS : Converting Legacy System DATA into a flat file
INTERFACES : Converting Flat File into SAP
Conversion Program
http://help.sap.com/saphelp_erp2005/helpdata/en/d3/a65a14e96911d1b401006094b944c8/frameset.htm
Interface Program
http://help.sap.com/saphelp_erp2005/helpdata/en/64/be5b4150b38147e10000000a1550b0/frameset.htm
<b>Reward if usefull</b>

What is the difference between Abstract class and Interface ?

Hi,
Could u plz tell me the difference between Abstract class and Interface?
Thanks in advance.
Gopi

Lots.
An abstract class can contain some method implementations, or indeed all the method implementations. It may contain methods with all the various access modifiers. It cannot be instantiated. A class may inherit from only a single abstract class.
An interface contains only public method stubs and constants. A class may implement multiple interfaces. An interface cannot (obviously) be instantiated.
Abstract classes are particularly useful when you need to provide a semi-complete implementation for reuse. Interfaces are used more like types.
Look at java.util.* for some good examples of the use of both.

Difference between Abstarct Class and Interface

HI,
Here is a simple one for the gurus but quite important for me.
What is the difference b/w an Interface and an abstract class?
Why do we need each one of them?
I would appreciate if you people can give examples of each so that I amy understand fully
Thanks in advance...

A normal class (not abstract) has a special behaviour, like java.awt.Frame. A Frame is a frame no matter how you subclass it. If you create a subclass it will still be able to be displayed by calling it's show method. So by using a normal class you can create a type of class.
An abstract class does the same, but it leaves some of the code unwritten. For instance java.lang.Number. This class is abstract becuase it has no knowledge of how to store the number in memory. But it knows that it is a number, and any subclass will still be a number. You could create a subclass of Number that can hold the time in milliseconds and checks your system clock to see what the time is, it could also have methods that return the time in another country, but it would still be just a Number.
An interface is a way to describe what an object can do, not what it is. So with java.lang.Comparable as an example you can make any class comparable. This means that no matter what type of object you have, it can be compared with other objects. So you can have a subclass of Frame that can be compared with other windows. Or a subclass of Number that can be compared with other Numbers. You can even compare those two different types if you like. So you could compare a window with a number.
That is the difference between abstract classes and interfaces.
I hope you could follow my arguments, it isn't an easy subject,
Daniel

Difference between abstract classes and interfaces

I actually wonder about what are the differences between abstract classes and interfaces may somebody give an example code about it?
and i have one more question how can i use interfaces like multiple inheritance ? i mean when i implement an interface like
class a extends b implements c,di have to use all c and d methods but what that methods means?
I mean as i know we cannot make implementations of methods in interfaces
but for example in runnable interface there is a method like run() and it has been defined somewhere because it knows what to do(i mean when it will run), i just write my code into that method .

Once you get past the starting point (I am referring to the OP here), there are a few salient differences:
You can only extend (or generalize) a single superclass; however, you can implement (or realize) multiple interfaces. As such, all things being equal, using an interface in lieu of an abstract class 'frees' your design. Later, if you want the implementor of an interface to inherit from another class, there is not issue.
Any abstract method specifies a contract. However, abstract classes allow you to also add common behavior to subclasses. This is an overused justification for abstract classes, IMO. You can achieve the same effect using delegation and still having interfaces.
Always program to interfaces wherever possible. This means that you define an interface and have an implementing class (usually at a minimum). Do not do this for all your classes, but rather the ones that make your system unique (the domain model or M in MVC architecture). This allows you to later change implementation with a minimal amount of refactoring. This is a core precept from the Group of Four and any number of decent programming books.Best of luck.
- Saish

Difference between "output type" and "output medium" in interface

Can comebody kindly tell me the difference between "output type" and "output medium" with respect to interface?
Thanks,
Max

Hi,
Output medium means , how you wants to see the output like
Printout, Fax, Mail, or EDI output etc
Output type/Condition Type means for every Application document an Output type is create for the Output Message determination, this is linked with the Condition records, Medium, Program and the Output Script or smartform.
reward points if useful
regards,
ANJI

Difference between custom controller and interface component

Hi,
Can anybody tell me what are the differences between component controller and custome controller , component interface.
Thanks in advance.
Regards
sireesha.

hi,
When any component is created web dynpro framework automatically generates the controller(controller is nothing but entity which controls the working of views and acts as a binding layer between model and view), this controller is called Component controller.
We can have as many controller as we want, but they should be used sparingly, Controller should encapsulate the functionality which is common to whole component , like if your application fetches master data and appliaction data so better you should have 2 controller , 1 for master and 2 for application so as to have modularisation in your application.
Component Interface is the entity which is used when you want to use the functionality defined in some other component i.e. if your main component is acting as a parent comopnent then the child component usage should be defined via this interface controller under Component Interface, so that main compo will access it via childs Interface Controller.
Other node under this , Interface view , gets generated for every creation of window , Interface view is entry point into our application for web Dynpro framework
jsut check out following links,
Re: Difference between Component Controller and Custom Controllet...?
Re: custom vs component controller
check out these ex for the Component Interface and node under this,
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/webcontent/uuid/19e6e990-0201-0010-eca6-a62e342eaad3 [original link is broken]
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/webcontent/uuid/1208c2cd-0401-0010-4ab6-f4736074acc6 [original link is broken]
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/webcontent/uuid/1ee0e990-0201-0010-75bf-a087c241cb83 [original link is broken]
hope it helps
regards

Difference between functional task and interface task

Hi All,
Kindly let me know the Difference between functional task and interface task when we create a task profile.
Regards,
Swetha

Hi Sweta,
The diferennce is Like we create different roles like store incharge and Store manager for Store manager there are list of activities that he can do like approve requests from store keeper and so on so these are Interface tasks as there are differences based on the roles of the employee but if a person can only create and not approve the transation then this is functional task difference

Difference between PI/XI interface and ABAP interface

Hello Experts,
We are in the process of identifying interfaces for our current client. I am looking for some documentation or any specific information that will help me to differentiate between SAP PI interface and ABAP Interface. Basically I want to know what are the advantages of PI interface over ABAP interface. What is better? and why?
Any information would be of great help. Thanks.

PI (versus point to point ABAP) advantages are:
1)     Centralized control over data security
2)     More effective (centralized) interface failure monitoring and resolution
3)     Elimination of redundant development and maintenance costs

Could I configure local switching between sub-interface and global interface on ASR9k?

Could I configure local switching between sub-interface and global interface on ASR9k?

For 2 interfaces it is probably best to use an xconnect. It is faster and saves system resources (eg mac learning doesnt apply to xconnect).
Config example:
l2vpn
xconnect group link
p2p link
interface Bundle-Ether100.4321
interface Bundle-Ether500.4321
EFP config:
interface Bundle-Ether100.4321 l2transport
encapsulation dot1q 4000
rewrite ingress tag pop 1 symmetric
interface Bundle-Ether500.4321 l2transport
encapsulation dot1q 2000
rewrite ingress tag pop 1 symmetric
This example shows that you can link 2 EFP's with different vlan's together if you'd pop the tags.
If the EFP's are of the same vlan, then popping the tag can be done but not a must. In general it is recommended to always pop vlan tags so there is a standard EFP design, but not for any technical reasons.
When you use a bridge domain and using a BVI, you MUST pop the tags as the BVI has no notion of a vlan tag and wants to see "plain ethernet".
regards
xander

What is the difference between Business System and Business Service?

Hi
Please tell me what is the difference between Business System and Business Service...? In real time at what situation we will use Business System and in what situations we will use Business Service..? Please help me
Best Regards
Ravi Shankar B

HI,
Business system:
If you want to address a particular business system as the sender or receiver of messages, choose this service type.
A business system is an actual application system in a system landscape. A business system (service) comprises information about the inbound and outbound interfaces and the software component versions of the business system.
You usually use business system services when configuring internal company processes.
Business Service:
If you want to address an abstract business entity as the sender or receiver of messages, choose this service type.
Using a business service, you can define the technical or business subunits of the companies involved and then assign them the relevant interfaces.
You usually use business services when configuring cross-company processes. In this case, you only make your interfaces known to the business partners involved and either do not make any details about your own system landscape available, or only specific details.
For example, you can define RosettaNet Partner Interface Processes (PIPs) as business services.
Regards,
Sudheer.

Difference between Business system and Business service.

Hi All,
Can any one explain in detail difference between Business system and Business service.
As we commonly say, Business service is for those system which are not in our landscape.
Can any one explain in which particular scenarios we will go for Business Service.
Reg
Bapuraj

Hi Bapuraj,
Business System
Business system is a logical system, and there is an importance on physical existence of the system.Also SLD entry is required.
It is generally used for SAP applications, this is just a general prinicple followed but not mandatory.
Business Component(formerly Service)
You use a Business Component, when you do not have the System details of the the partner system to which you want to communicate. i.e. you have not configured the partner system in SLD.
Business Service is an Absract Unit with Sender and Receiver Interfaces,In this case you need to explicitly add the message interfaces while doing configuration in ID.
It is generally used for NON-SAP applications, this is just a general prinicple followed but not mandatory.
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<LINKS CAN BE SEARCHED FOR BASIC QUESTIONS>
-santosh.
Edited by: Prateek Raj Srivastava on Jan 12, 2012 10:01 PM

Differences between Convensional interfaces and XI interfaces

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