Best Practice for Recording to HDD's.

I want some answers from some people who have been using Logic for a while and have experience in this topic. I have a 2010 MBP 13" with 1 Firewire 800 port, after looking for a cheap quality interface i purchased a Saffire Pro 14 which has a Firewire 6pin interface and i assume is Firewire 400mbps. The interface also doesn't have an extra Firewire port and the manual says not to "daisy-chain" becuase of latency and CPU spikes. Honestly i haven't noticed any problems with my HDD I/O in Logic, when i skip around it peaks but never any errors. I formatted an old 160GB Sata 1 drive and hooked it up over USB, i noticed that when i "skip" arround or w/e its called it doesn't peak (get red) anymore. I want to know peoples experience with Daisy chaining firewire devices, and using USB HDD's.
When i invest more money, would it be ok to stick with my interface for now and get a Glyph drive and daisy chain my interface on at the end? Should i stick with USB storage? Should i stick with internal 5400RPM drive? Should i upgrade it to a 7200RPM ( my original idea). In I.T. we call it best practices, whats the best practice for storing your audio/logic files on a Mac when running Logic.

Please don't just tell me Firewire is faster than USB.....I'm an I.T. Proffesional (wishing i went to school for recording ) I know how comptuers work, i build them and fix them all day. I want to know from peoples personal experience what they run and their suggestions. Thanks so much!

Similar Messages

Best Practices for new iMac

I posted a few days ago re failing HDD on mid-2007 iMac. Long story short, took it into Apple store, Genius worked on it for 45 mins before decreeing it in need of new HDD. After considering the expenses of adding memory, new drive, hardware and installation costs, I got a brand new iMac entry level (21.5" screen,
2.7 GHz Intel Core i5, 8 GB 1600 MHz DDR3 memory, 1TB HDD running Mavericks). Also got a Superdrive. I am not needing to migrate anything from the old iMac.
I was surprised that a physical disc for the OS was not included. So I am looking for any Best Practices for setting up this iMac, specifically in the area of backup and recovery. Do I need to make a boot DVD? Would that be in addition to making a Time Machine full backup (using external G-drive)? I have searched this community and the Help topics on Apple Support and have not found any "checklist" of recommended actions. I realize the value of everyone's time, so any feedback is very appreciated.

OS X has not been officially issued on physical media since OS X 10.6 (arguably 10.7 was issued on some USB drives, but this was a non-standard approach for purchasing and installing it).
To reinstall the OS, your system comes with a recovery partition that can be booted to by holding the Command-R keys immediately after hearing the boot chimes sound. This partition boots to the OS X tools window, where you can select options to restore from backup or reinstall the OS. If you choose the option to reinstall, then the OS installation files will be downloaded from Apple's servers.
If for some reason your entire hard drive is damaged and even the recovery partition is not accessible, then your system supports the ability to use Internet Recovery, which is the same thing except instead of accessing the recovery boot drive from your hard drive, the system will download it as a disk image (again from Apple's servers) and then boot from that image.
Both of these options will require you have broadband internet access, as you will ultimately need to download several gigabytes of installation data to proceed with the reinstallation.
There are some options available for creating your own boot and installation DVD or external hard drive, but for most intents and purposes this is not necessary.
The only "checklist" option I would recommend for anyone with a new Mac system, is to get a 1TB external drive (or a drive that is at least as big as your internal boot drive) and set it up as a Time Machine backup. This will ensure you have a fully restorable backup of your entire system, which you can access via the recovery partition for restoring if needed, or for migrating data to a fresh OS installation.

Best practices for office 365 SHARED CALENDAR for whole school / organization

hi
we need guidance on best practice for setting up SHARED CALENDAR on Office365 exchange server for entire organization (school)of150 staff.
Requirements
+ all staff should have read only / reviewer permissions on calendar
+handful staff should have editor permissions on calendar
+ the calendar should synchronise custom categories and colors
Current Solution
at the moment we have found that a shared mailbox is the best solution because;
- allusers can add the shared mailbox on outlook 2010as additional mailbox as readonly
- all the categories & colors for the calendarare automatically synchronised because the color categories are stored within this mailbox.
- you can edit calendar permissions in outlook to allow some users as "editor" of the calendar.Problem with Current Solution
the problem however is that the users also need to access this...
This topic first appeared in the Spiceworks Community

Hi Aleksei,
I think Inactive mailboxes in Exchange Online is the feature that you want. This feature makes it possible for you to preserve (store and archive) the contents of deleted mailboxes indefinitely.
A mailbox becomes inactive when an In-Place Hold or a
Litigation Hold is placed on the mailbox before the corresponding Office 365 user account is deleted.
But I'm afraid that it might be impossible to "easily share certain folders or even whole mailbox with people in the company". As can been seen from below articles, this only allows administrators, compliance officers, or records managers
to use the In-Place eDiscovery feature in Exchange Online to access and search the contents of an inactive mailbox:
http://technet.microsoft.com/en-us/library/dn144876(v=exchg.150).aspx
http://blogs.technet.com/b/exchange/archive/2013/03/21/preserve-mailbox-data-for-ediscovery-using-inactive-mailboxes-in-exchange-online.aspx
Anyway, this is the forum to discuss questions and feedback for Microsoft Office client. For more details about your question, I would suggest you post in the dedicated forum of
Exchange Online, where you can get more experienced responses:
https://social.technet.microsoft.com/Forums/msonline/en-US/home?forum=onlineservicesexchange
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
Regards,
Ethan Hua
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

Best practices for setting up projects

We recently adopted using Captivate for our WBT modules.
As a former Flash and Director user, I can say it’s
fast and does some great things. Doesn’t play so nice with
others on different occasions, but I’m learning. This forum
has been a great source for search and read on specific topics.
I’m trying to understand best practices for using this
product. We’ve had some problems with file size and
incorporating audio and video into our projects. Fortunately, the
forum has helped a lot with that. What I haven’t found a lot
of information on is good or better ways to set up individual
files, use multiple files and publish projects. We’ve decided
to go the route of putting standalones on our Intranet. My gut says
yuck, but for our situation I have yet to find a better way.
My question for discussion, then is: what are some best
practices for setting up individual files, using multiple files and
publishing projects? Any references or input on this would be
appreciated.

Hi,
Here are some of my suggestions:
1) Set up a style guide for all your standard slides. Eg.
Title slide, Index slide, chapter slide, end slide, screen capture,
non-screen capture, quizzes etc. This makes life a lot easier.
2) Create your own buttons and captions. The standard ones
are pretty ordinary, and it's hard to get a slick looking style
happening with the standard captions. They are pretty easy to
create (search for add print button to learn how to create
buttons). There should instructions on how to customise captions
somewhere on this forum. Customising means that you can also use
words, symbols, colours unique to your organisation.
3) Google elearning providers. Most use captivate and will
allow you to open samples or temporarily view selected modules.
This will give you great insight on what not to do and some good
ideas on what works well.
4) Timings: Using the above research, I got others to
complete the sample modules to get a feel for timings. The results
were clear, 10 mins good, 15 mins okay, 20 mins kind of okay, 30
mins bad, bad, bad. It's truly better to have a learner complete
2-3 short modules in 30 mins than one big monster. The other
benefit is that shorter files equal smaller size.
5) Narration: It's best to narrate each slide individually
(particularly for screen capture slides). You are more likely to
get it right on the first take, it's easier to edit and you don't
have to re-record the whole thing if you need to update it in
future. To get a slicker effect, use at least two voices: one male,
one female and use slightly different accents.
6) Screen capture slides: If you are recording filling out
long window based databse pages where the compulsory fields are
marked (eg. with a red asterisk) - you don't need to show how to
fill out every field. It's much easier for the learner (and you) to
show how to fill out the first few fields, then fade the screen
capture out, fade the end of the form in with the instructions on
what to do next. This will reduce your file size. In one of my
forms, this meant the removal of about 18 slides!
7) Auto captions: they are verbose (eg. 'Click on Print
Button' instead of 'Click Print'; 'Select the Print Preview item'
instead of 'Select Print Preview'). You have to edit them.
8) PC training syntax: Buttons and hyperlinks should normally
be 'click'; selections from drop down boxes or file lists are
normally 'select': Captivate sometimes mixes them up. Instructions
should always be written in the correct order: eg. Good: Click
'File', Select 'Print Preview'; Bad: Select 'Print Preview' from
the 'File Menu'. Button names, hyperlinks, selections are normally
written in bold
9) Instruction syntax: should always be written in an active
voice: eg. 'Click Options to open the printer menu' instead of
'When the Options button is clicked on, the printer menu will open'
10) Break all modules into chapters. Frame each chapter with
a chapter slide. It's also a good idea to show the Index page
before each chapter slide with a progress indicator (I use an
animated arrow to flash next to the name of the next chapter), I
use a start button rather a 'next' button for the start of each
chapter. You should always have a module overview with the purpose
of the course and a summary slide which states what was covered and
they have complete the module.
11) Put a transparent click button somewhere on each slide.
Set the properties of the click box to take the learner back to the
start of the current chapter by pressing F2. This allows them to
jump back to the start of their chapter at any time. You can also
do a similar thing on the index pages which jumps them to another
chapter.
12) Recording video capture: best to do it at normal speed
and be concious of where your mouse is. Minimise your clicks. Most
people (until they start working with captivate) are sloppy with
their mouse and you end up with lots of unnecessarily slides that
you have to delete out. The speed will default to how you recorded
it and this will reduce the amount of time you spend on changing
timings.
13) Captions: My rule of thumb is minimum of 4 seconds - and
longer depending on the amount of words. Eg. Click 'Print Preview'
is 4 seconds, a paragraph is longer. If you creating knowledge
based modules, make the timing long (eg. 2-3 minutes) and put in a
next button so that the learner can click when they are ready.
Also, narration means the slides will normally be slightly longer.
14) Be creative: Capitvate is desk bound. There are some
learners that just don't respond no matter how interactive
Captivate can be. Incorporate non-captivate and desk free
activities. Eg. As part of our OHS module, there is an activity
where the learner has to print off the floor plan, and then wander
around the floor marking on th emap key items such as: fire exits;
first aid kit, broom and mop cupboard, stationary cupboard, etc.
Good luck!

JSF - Best Practice For Using Managed Bean

I want to discuss what is the best practice for managed bean usage, especially using session scope or request scope to build database driven pages
---- Session Bean ----
- In the book Core Java Server Faces, the author mentioned that most of the cases session bean should be used, unless the processing is passed on to other handler. Since JSF can store the state on client side, i think storing everything in session is not a big memory concern. (can some expert confirm this is true?) Session objects are easy to manage and states can be shared across the pages. It can make programming easy.
In the case of a page binded to a resultset, the bean usually helds a java.util.List object for the result, which is intialized in the constructor by query the database first. However, this approach has a problem: when user navigates to other page and comes back, the data is not refreshed. You can of course solve the problem by issuing query everytime in your getXXX method. But you need to be very careful that you don't bind this XXX property too many times. In the case of querying in getXXX, setXXX is also tricky as you don't have a member to set. You usually don't want to persist the resultset changes in the setXXX as the changes may not be final, in stead, you want to handle in the actionlistener (like a save(actionevent)).
I would glad to see your thought on this.
--- Request Bean ---
request bean is initialized everytime a reuqest is made. It sometimes drove me nuts because JSF seems not to be every consistent in updating model values. Suppose you have a page showing parent-children a list of records from database, and you also allow user to change directly on the children. if I hbind the parent to a bean called #{Parent} and you bind the children to ADF table (value="#{Parent.children}" var="rowValue". If I set Parent as a request scope, the setChildren method is never called when I submit the form. Not sure if this is just for ADF or it is JSF problem. But if you change the bean to session scope, everything works fine.
I believe JSF doesn't update the bindings for all component attributes. It only update the input component value binding. Some one please verify this is true.
In many cases, i found request bean is very hard to work with if there are lots of updates. (I have lots of trouble with update the binding value for rendered attributes).
However, request bean is working fine for read only pages and simple binded forms. It definitely frees up memory quicker than session bean.
----- any comments or opinions are welcome!!! ------

I think it should be either Option 2 or Option 3.
Option 2 would be necessary if the bean data depends on some request parameters.
(Example: Getting customer bean for a particular customer id)
Otherwise Option 3 seems the reasonable approach.
But, I am also pondering on this issue. The above are just my initial thoughts.

Best practice for external but secure access to internal data?

We need external customers/vendors/partners to access some of our company data (view/add/edit). It’s not so easy as to segment out those databases/tables/records from other existing (and put separate database(s) in the DMZ where our server is). Our
current solution is to have a 1433 hole from web server into our database server. The user credentials are not in any sort of web.config but rather compiled in our DLLs, and that SQL login has read/write access to a very limited number of databases.
Our security group says this is still not secure, but how else are we to do it? Even if a web service, there still has to be a hole in somewhere. Any standard best practice for this?
Thanks.

Security is mainly about mitigation rather than 100% secure, "We have unknown unknowns". The component needs to talk to SQL Server. You could continue to use http to talk to SQL Server, perhaps even get SOAP Transactions working but personally
I'd have more worries about using such a 'less trodden' path since that is exactly the areas where more security problems are discovered. I don't know about your specific design issues so there might be even more ways to mitigate the risk but in general you're
using a DMZ as a decent way to mitigate risk. I would recommend asking your security team what they'd deem acceptable.
http://pauliom.wordpress.com

What are best practice for packaging and deploying j2EE apps to iAS?

We've been running a set of J2EE applications on a pair of iAS SP1b for about a year and it has been quite stable.
Recently however we have had a number of LDAP issues, particularly when registering and unregistering applications (registering ear files sometimes fails 1st time but may work 2nd time). Also We've noticed very occasionally that old versions of classes sometimes find their way onto our machines.
What is considered to be best practice in terms of packaging and deployment, specifically:
1) Packaging - using the deployTool that comes with iAS6 SP1b to package is a big manual task, especially when you have 200+ jsp files. Are people out there using this or are they scripting it with a build tool such as Ant?
2) Deploying an existing application to multiple iAS's. Are you guys unregistering old application then reregistering new application? Are you shutting down iAS whilst doing the deployment?
3) Deploying ear files can take 5 to 10 mins, is this normal?
4) In a clustered scenario where HTTPSession is shared what are the consequences of doing deployments to data stored in session?
thanks in asvance for your replies
Owen

You may want to consider upgrading your application server environment to a newer service pack. There are numerous enhancements involving the deployment tool and run time layout of your application that make clear where you're application is loading its files from.
If you've at a long running application server environment, with lots of deployments under your belt, you might start to notice slow downs in deployment and kjs start time. Generally this is due to garbage collecting in your iAS registry.
You can do several things to resolve this. The most complete solution is to reinstall the application server. This will guarantee a clean ldap registry. Of course you've got to restablish your configurations and redeploy your applications. When done, backup your application server install space with the application server and directory server off. You can use this backup to return to a known configuation at some future time.
For the second method: <B>BE CAREFUL - BACKUP FIRST</B>
There is a more exhaustive solution that involves examining your deployed components to determine the active GUIDS. You then search the NameTrans section of the registry searching for Applogic Servlet *, and Bean * entries that represent your previously deployed components but are represented in the set of deployed GUIDs. Record these older GUIDs, remove them from ClassImp and ClassDef. Finally remove the older entries from NameTrans.
Best practices for deployment depend on your particular environmental needs. Many people utilize ANT as a build tool. In later versions of the application server, complete ANT scripts are included that address compiling, assembly and deployment. Ant 1.4 includes iAS specific targets and general J2EE targets. There are iAS specific targets that can be utilized with the 1.3 version. Specialized build targets are not required however to deploy to iAS.
Newer versions of the deployment tool allow you to specify that JSPs are not to be registered automatically. This can be significant if deployment times lag. Registered JSP's however benefit more fully from the services that iAS offers.
2) In general it is better to undeploy then redeploy. However, if you know that you're not changing GUIDs, recreating an existing application with new GUIDs, or removing registered components, you may avoid the undeploy phase.
If you shut down the KJS processes during deployment you can eliminate some addition workload on the LDAP server which really gets pounded during deployment. This is because the KJS processes detect changes and do registry loads to repopulate their caches. This can happen many times during a deployment and does not provide any benefit.
3) Deploying can be a lengthy process. There have been improvements in that performance from service pack to service pack but unfortunately you wont see dramatic drops in deployment times.
One thing you can do to reduce deployment times is to understand the type of deployment. If you have not manipulated your deployment descriptors in any way, then there is no need to deploy. Simply drop your newer bits in to the run time space of the application server. In later service packs this means exploding the package (ear,war, or jar) in to the appropriate subdirectory of the APPS directory.
4) If you've changed the classes of objects that have been placed in HTTPSession, you may find that you can no longer utilize those objects. For that reason, it is suggested that objects placed in session be kept as simple as possible in order to minimize this effect. In general however, is not a good idea to change a web application during the life span of a session.

Best practice for PK and indexes?

Dear All,
What is the best practice for making Primary Key and indexes? Should we keep them in the same tablespace as table or should we create a seperate tableapce for all indexes and Primary Key? Please note I am talking about a table that has 21milion rows at the moment and increasing 10k to 20k rows daily. This table is also heavily involved in daily reports and causing slow performance. Currently the complete table with all associated objects such as indexes and PK is stored in one seperate tablespace. If my way is right then please advise me how can I improve the performance of retrival or DML operation on this table?
Thanks in advance..
Zia Shareef

Well, thanks for valueable advices... I am using Oracle 8i and let me tell you exact problem...
My billing database has two major tables having almost 21 millions rows each... one has collection data and other one for invoices... many reports are showing the data with the joining of Customer + Collection + Invoices tables.
There are 5 common fields in between invoices(reading) and collection tables
YEAR, MONTH, AREA_CODE, CONS_CODE, BILL_TYPE(adtl)
My one of batch process has following update and it is VERY VERY SLOW:
UPDATE reading r
SET bamount (SELECT sum(camount)
FROM collection cl
WHERE r.ryear = cl.byear
AND r.rmonth = cl.bmonth
AND r.area_code = cl.area_code
AND r.cons_code = cl.cons_code
AND r.adtl = cl.adtl)
WHERE area_code = 1
tentatively area_code(1) is having 20,000 consumers
each consuemr may have 72 invoices and against these invoices it may have 200 rows in collection tables (system have provision to record partial payment against one invoice)
NOTE: Please note presently my process is based on cursors so the above query runs for one consumer at one time but just for giving an idea I have made it for whole area.
Mr. Yingkuan, can you please tell me how can I check that the table' statistics is not current and how can I make it current. Is it really effect performance?

Best practice for remote topic subscription with HA

I'd like to create an orchestrator EJB, in cluster A, that must persist some data to a database of record and then publish a business event to a topic. I have two durable subscribers, MDBs on clusters B & C, that need to receive the events and perform some persistence on their side.
          I'd like HA so that a failure in any managed server would not interrupt the system. I can live with at least once delivery, but at the same time I'd like to minimize the amount of redundant message processing.
          The documentation gets a little convoluted when dealing with clustering. What is the best practice for accomplishing this task? Has anyone successfully implemented a similar solution?
          I'm using Weblogic 8.1 SP5, but I wouldn't mind hearing solutions for later versions as well.

A managed server failure makes that server's JMS servers unavailable, which, in turn, makes the JMS server's messages unavailable until the either (A) the JMS server is migrated or (B) the managed server is restarted.
          For more discussion, see my post today on topic "distributed destinations failover - can't access messages from other node". Also, you might be interested in the circa 8.1 migration white-paper on dev2dev: http://dev2dev.bea.com/pub/a/2004/05/ClusteredJMS.html
          Tom

Best Practice for Conversion Workflow

Hello,
I'm converting video files from our "home grown" virtual media reserve to iTunes U. Some of the files are in RM format, some are already compressed .mov's (not H.264) and some I have the original DV files for.
Anyone out there have a best practice for converting these file types for posting to iTunes U? I have Final Cut Studio (Compressor), QT Pro and Squeeze available to me.
Any experience you have with this would be helpful.
Thanks,
Jeana

For converting old files to a podcast compatible video and based on the machine you have, consider elgato turbo.264. It is a fairly priced "co-processor" for video conversion. It is comprised of an application and a small USB device with a encoder chip in it. In my experience, it is the fastest way to create podcast video files. The amount of time that you will save will pay for the device quickly (about $100). Plus it does batch conversion of any video that your system currently plays through QuickTime. it has all the necessary presets and you can create your own. It has a few minor limitations such as not supporting (at this moment) enhanced podcasting features such as chapter markers and closed-captions but since you have old files for conversion, that won't matter.
For creating new content, the workflow varies a lot. Since you mention MP3s, I guess you are also interested in audio files. I would stick with GarageBand, especially if you are a beginner plus it supports enhanced podcasts.
In any case the most important goal is to have the simplest and fastest way to go from recording to publication. The less editing the better. To attain that, the best methods will require the largest investments. For example, for video production the best way is to produce the content live so when you finish recording it is only a matter of encoding and publishing. that will require the use of a video switcher that can ingest at least one video camera and a computer output to properly capture presentation material. That's the minimum. there are several devices that can do this for you. Some are disguised PCs and some connect to a PC for tapeless recording. You can check the Tricaster, which I like but wish it was a Mac and not a Windows Xp PC. Other routes may include video mixers from manufacturers like Edirol, Pansonic or Sony connected to a VTR or directly to a Mac for direct-ti-disc capture. I f you look at some of the content available in iTunes U, you will see what I explain here. This workflow requires preparation and sufficient live support but you will have your material ready for delivery almost immediately after the recorded event. No editing required. Finally, the most intensive workflow is to record everything separately and edit it later, which is extremely time consuming.

Best practice for responsive projects

Does anyone have tips on best practices for responsive project?
I understand that 3 different layouts can be created. What happens if a learner is not using one of the 3 devices that were set up in a responsive project, and their screen size is different from any of those

Jay,
Dr. Pooja Jaisingh offered very valuable tips for good practice in responsive design last week in her webinar. 'Do's and Don'ts of creating Responsive Projects with Captivate 8'. I don't see the recording yet On Demand, but keep an eye on it.
Did you test a responsive project with F11 (Preview in Browser)? You will be able to change the resolution of the browser window and see that the content, if well designed (you can have absolute positioning, size as well) will move, shrink to adapt. The break points (3 devices) allow you to make more invasive changes at those points: dragging some objects out of the stage in the scratch area because they take up too much space for phones is one example. Or replacing a big screenshot with many details by a zoomed in detail screenshot for the mobile breakpoint. That is my way of explaining, responsive is not just have the three layouts for devices, it is also adapting between those breakpoints.

Best practice for sharing data with model window

Hi team,
what would the best practice for sharing data with a modal
window be ? I use a modal window to display record details from a
record list, but i am not quite sure how to access the data from
the components in the main application in the modal window.
Any hints would be welcome
Best
Frank

Pass a reference to the parent into the modal popup. Then you
can reference anything in the parent scope.
I haven't done this i 2.0 yet so I can't give you code. I'll
post if I do.
Oh, also, you can reference the parent using parentDocument.
So in the popup you could do:
parentDocument.myPublicVariable = "whatever";
Tracy

Best Practice for Production IDM setup

Hi, what is the best practice for setting up prodcution IDM:
1. Connect IDM prod to ECC DEV,QA and Prod or
2. Connect IDM prod to ECC prod only and Connect IDM dev to ECC Dev and QA.
Please also specify pros and cons for both options if possible.
Thanks in advance,
Farhan

We run our IDM installation as per your option 2 (Prod and non-prod on separate instances)
We use HCM for the source of truth in production and have a strict policy regarding not allowing non HCM based user accounts. HCM creates the SU01 record and details are downloaded to IDM through the LDAP extract. Access is provision based on Roles attached to the HCM Position in IDM. In Dev/test/uat we create user logins in IDM and push the details out.
Our thinking was that we definitely needed a testing environment for development and patch testing, and it needs to be separate to production. It was also ideal to use this second environment for dev/test/uat since we are in the middle of a major SAP project rollout and are creating hundreds of test and training users with various roles and prefer to keep this out of a production instance.
Lately we also created a sandpit environment since I found that I could not do destructive testing or development in the dev/test/uat instance because we were becoming reliant on this environment being available. Almost a second production instance - since we also set the policy that all changes are made through IDM and no direct SU01 changes are permitted.
Have a close look at your usage requirements before deciding which structure works best for you.

What is the best practice for creating primary key on fact table?

what is the best practice for primary key on fact table?
1. Using composite key
2. Create a surrogate key
3. No primary key
In document, i can only find "From a modeling standpoint, the primary key of the fact table is usually a composite key that is made up of all of its foreign keys."
http://download.oracle.com/docs/cd/E11882_01/server.112/e16579/logical.htm#i1006423
I also found a relevant thread states that primary key on fact table is necessary.
Primary Key on Fact Table.
But, if no business requires the uniqueness of the records and there is no materilized view, do we still need primary key? is there any other bad affect if there is no primary key on fact table? and any benifits from not creating primary key?

Well, natural combination of dimensions connected to the fact would be a natural primary key and it would be composite.
Having an artificial PK might simplify things a bit.
Having no PK leads to a major mess. Fact should represent a business transaction, or some general event. If you're loading data you want to be able to identify the records that are processed. Also without PK if you forget to make an unique key the access to this fact table will be slow. Plus, having no PK will mean that if you want to used different tools, like Data Modeller in Jbuilder or OWB insert / update functionality it won't function, since there's no PK. Defining a PK for every table is a good practice. Not defining PK is asking for a load of problems, from performance to functionality and data quality.
Edited by: Cortanamo on 16.12.2010 07:12

BI Best Practice for Chemical Industry

Hello,
I would like to know if anyone is aware of SAP BI Best Practice for Chemicals.And if so can anyone please post a link aswell.
Thanks

Hi Naser,
Below information will helps you in detail explanation regarding Chemical industry....
SAP Best Practices packages support best business practices that quickly turn your SAP ERP application into a valuable tool used by the entire business. You can evaluate and implement specific business processes quickly u2013 without extensive Customization of your SAP software. As a result, you realize the benefits with less Effort and at a lower cost than ever before. This helps you improve operational efficiency while providing the flexibility you need to be successful in highly demanding markets. SAP Best Practices packages can benefit companies of all sizes, including global enterprises creating a corporate template for their subsidiaries.
Extending beyond the boundaries of conventional corporate divisions and functions, the SAP Best Practices for Chemicals package is based on SAP ERP; the SAP Environment, Health & Safety (SAP EH&S) application; and the SAP Recipe Management application. The business processes supported by SAP Best Practices for Chemicals encompass a wide range of activities typically found in a chemical industry
Practice:
u2022 Sales and marketing
u2013 Sales order processing
u2013 Presales and contracts
u2013 Sales and distribution (including returns, returnables, and rebates, with quality management)
u2013 Inter- and intracompany processes
u2013 Cross-company sales
u2013 Third-party processing
u2013 Samples processing
u2013 Foreign trade
u2013 Active-ingredient processing
u2013 Totes handling
u2013 Tank-trailer processing
u2013 Vendor-managed inventory
u2013 Consignment processing
u2013 Outbound logistics
u2022 Supply chain planning and execution Supply and demand planning
u2022 Manufacturing planning and execution
u2013 Manufacturing execution (including quality management)
u2013 Subcontracting
u2013 Blending
u2013 Repackaging
u2013 Relabeling
u2013 Samples processing
u2022 Quality management and compliance
u2013 EH&S dangerous goods management
u2013 EH&S product safety
u2013 EH&S business compliance services
u2013 EH&S industrial hygiene and safety
u2013 EH&S waste management
u2022 Research and development Transformation of general recipes
u2022 Supplier collaboration
u2013 Procurement of materials and services (Including quality management)
u2013 Storage tank management
u2013 E-commerce (Chemical Industry Data Exchange)
u2022 Enterprise management and support
u2013 Plant maintenance
u2013 Investment management
u2013 Integration of the SAP NetWeaver Portal component
u2022 Profitability analysis
More Details
This section details the most common business scenarios u2013 those that benefit most from the application of best practices.
Sales and Marketing
SAP Best Practices for Chemicals supports the following sales and marketingu2013related business processes:
Sales order processing u2013 In this scenario, SAP Best Practices for Chemicals supports order entry, delivery, and billing. Chemical industry functions include the following:
u2022 Triggering an available-to-promise (ATP) inventory check on bulk orders after sales order entry and automatically creating a filling order (Note: an ATP check is triggered for packaged material.)
u2022 Selecting batches according to customer requirements:
u2022 Processing internal sales activities that involve different organizational units
Third-party and additional internal processing u2013 In this area, the SAP Best Practices for Chemicals package provides an additional batch production step that can be applied to products previously produced by either continuous or batch processing. The following example is based on further internal processing of plastic granules:
u2022 Purchase order creation, staging, execution, and completion
u2022 In-process and post process control
u2022 Batch assignment from bulk to finished materials
u2022 Repackaging of bulk material
SAP Best Practices for Chemicals features several tools that help you take advantage of chemical industry best practices. For example, it provides a fully documented and reusable prototype that you can turn into a productive solution quickly. It also provides a variety of tools, descriptions of business scenarios, and proven configuration of SAP software based on more than 35 years of working with the
Chemical industry.
SAP Functions in Detail u2013 SAP Best Practices for Chemicals
The package can also be used to support external toll processing such as that required for additional treatment or repackaging.
Tank-trailer processing u2013 In this scenario, SAP Best Practices for Chemicals helps handle the selling of bulk material, liquid or granular. It covers the process that automatically adjusts the differences between the original order quantities and the actual quantities filled in the truck. To determine the quantity actually filled, the tank trailer is weighed before and after loading. The delta weight u2013 or quantity filled u2013 is transmitted to the SAP software via an order confirmation. When the delivery for the sales order is created, the software automatically adjusts the order quantity with the confirmed filling quantity.The customer is invoiced for the precise quantity filled and delivered.
Supply Chain Planning and Execution
SAP Best Practices for Chemicals supports supply chain planning as well as supply chain execution processes:
Supply and demand planning u2013 Via the SAP Best Practices for Chemicals package, SAP enables complete support for commercial and supply-chain processes in the chemical industry, including support for integrated sales and operations planning, planning strategies for bulk material, and a variety of filling processes with corresponding packaging units. The package maps the entire supply chain u2013 from sales planning to material requirements planning to transportation procurement.
Supplier Collaboration
In the procurement arena, best practices are most important in the following
Scenario:
Procurement of materials and services:
In this scenario, SAP Best Practices for Chemicals describes a range of purchasing processes, including the following:
u2022 Selection of delivery schedules by vendor
u2022 Interplant stock transfer orders
u2022 Quality inspections for raw materials, including sampling requests triggered
by goods receipt
Manufacturing Scenarios
SAP Best Practices for Chemicals supports the following sales and
Manufacturingu2013related business processes:
Continuous production u2013 In a continuous production scenario, SAP Best Practices for Chemicals typifies the practice used by basic or commodity chemical producers. For example, in the continuous production of plastic granules, production order processing is based on run-schedule headers. This best-practice package also describes batch and quality management in continuous production. Other processes it supports include handling of byproducts,co-products, and the blending process.
Batch production u2013 For batch production,
SAP Best Practices for Chemicals typifies the best practice used by specialty
chemical producers. The following example demonstrates batch production
of paint, which includes the following business processes:
u2022 Process order creation, execution, and completion
u2022 In-process and post process control
u2022 Paperless manufacturing using XMLbased Process integration sheets
u2022 Alerts and events
u2022 Batch derivation from bulk to finished materials
Enterprise Management and Support
SAP Best Practices for Chemicals also supports a range of scenarios in this
area:
Plant maintenance u2013 SAP Best Practices for Chemicals allows for management
of your technical systems. Once the assets are set up in the system, it focuses on preventive and emergency maintenance. Tools and information support the setup of a production plant with assets and buildings.Revenue and cost controlling u2013 The package supports the functions that help you meet product-costing requirements in the industry. It describes how cost centers can be defined, attached
to activity types, and then linked to logistics. It also supports costing and settlement of production orders for batch and continuous production. And it includes information and tools that help you analyze sales and actual costs in a margin contribution report.
The SAP Best Practices for Chemicals package supports numerous integrated
business processes typical of the chemical industry, including the following:
u2022 Quality management u2013 Supports integration of quality management concepts across the entire supplychain (procurement, production, and sales), including batch recall and complaint handling
u2022 Batch management u2013 Helps generate batches based on deliveries from vendors or because of company production or filling, with information and tools for total management of batch production and associated processes including batch derivation, batch information cockpit, and a batchwhere- used list
u2022 Warehouse management u2013 Enables you to identify locations where materials
or batch lots are stored, recording details such as bin location and other storage information on dangerous goods to help capture all information needed to show compliance with legal requirements
Regards
Sudheer

Best Practice for Recording to HDD's.

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