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• Boot failure randomly. Can someone help?

  - by desgua

  I often get stuck at the boot on battery. I can suspend and hibernate without any trouble (even on battery). If I plug the energy cable everything goes right most of the time (edited June 13). Adding "acpi=off" doesn't solve the issue. Disabling power save from LAN at BIOS doesn't solve this too. Memory test seems to be ok: I can even compile a kernel without a problem: Has someone a tip for this? (I have the same questions marks in my mind as the image shows if not more :-/ ) obs.: this is an upgraded installation from Natty alpha. edited I (May 22): I've installed a brand new final 11.04 and got the bug again. edited II (June 13): I thought it was solved but it is not. After spending eight days off, the same problem happened even with the power cable connected. I had to reboot about 6 times until success. edited III (June 14): I can boot (even with battery) if I disconnect the cable and take off the battery for a few seconds. This lead me to conclude that maybe something is kept into memory of some hardware. Maybe or maybe not related but I also have touchpad issues (jumps) with this machine. edited IV (June 25): I opened gconf-editor and went to apps gnome-power-manager and disabled everything possibly related to suspend or hibernate. No help. Also I grabbed a Fedora live usb pendrive and got the same problem: So I think it is a hardware problem related issue.

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• How to start with Oracle BPM Suite

  - by JuergenKress

  Oracle Learning Library - BPM Webcasts on-demand Webcast: What’s new in Oracle BPM 11.1.1.7.0 & Webcast: New Directions with Business-Driven BPM BPM Videos Oracle Business Process Management - YouTube & Oracle BPM Suite 11g: Business Driven Modeling to Execution - Video & Customer Experience on your Mind? Think Oracle BPM - Video & Kick-Start BPM with Oracle Process Accelerators - Video Attend the free online training SOA Suite 11g Implementation Specialist & SOA Suite 11g Implementation Specialist & BPM Suite 11g Presales Specialist Pass the free online assessment BPM Suite 11g Presales Specialist Assessment Attend a BPM Bootcamp 3 days hands-on training free of charge for partners Take the exam BPM Suite 11g Certified Implementation Specialist Read the bpm blogs and bpm books from our BPM experts Additional resources BPM OTN Website Visit the Community Workspace (Community membership required) with the latest BPM training material, marketing kits and presentations Most important become a member in our SOA & BPM Partner Community here SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: BPM,BPM training,training,education,BPM bootcamp,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• What's the best way to learn/increase problem-solving skills?

  - by tucaz

  Hi all! I'm not sure this is the right place to ask this question, neither if this is the right way to ask this question but I hope you help me if it is not. I work as a programmer since I was 15 (will be 24 next week) so learning programming logic was somehow natural during the course of my career and I think that it helped me to get pretty good problem-solving. One thing none of us (programmers) can deny is that programming logic helps us in a lot of fields outside computer programming. So I'd say it is a very valuable resource that one should learn. My girlfriend is not a programmer and graduated in college on a non related course (Foreign Relations) because she didn't know what to study back then. As the years passed she discovered that she liked Logistics and started to work with it almost two years ago. However, since she does not have a technical background (not even basic Math) she is really having a hard time with it. She is already trying to catch up with Math, but even simple questions/brain-teasers are hard to her. For example, trying to find the missing numbers of this sequence: 0, 1, 1, 2, 3, 5, 8, _, _, 34 and so on. We know that this is Fibonacci but if we didn't we would probably be able to get to the correct answer just by "guessing" (using our acquired problem-solving skills). I'm not sure if problem-solving skills or logic are the correct name for it, but this is what I mean: quick solve problems, brain-teasers, find patterns, have a "sharp" mind. So, the question is: what is the best way for someone to learn this kind of skills without being a programmer (or studying algorithms and such)? If you say it is a book, could you please recommend one? Thanks a lot!

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• Purchase Vouchers From A Reputable Source

  - by Harold Green

  We have seen a recent increase in counterfeit vouchers being marketed online and we want to make sure our Candidates are aware of the risks of purchasing vouchers from unauthorized sellers. Please be advised that only Oracle University and Oracle University authorized resellers may sell vouchers for Oracle Certification exams. If you purchase a voucher from any other source, your voucher may not be valid and you run the risk of program sanctions from Oracle which could include a lifetime ban on taking Oracle Certification exams. Be sure your voucher is from an authorized source: Oracle University Oracle Authorized Reseller If you are unsure whether your voucher seller is an Authorized Reseller: Call Oracle University to confirm. Check for the official Oracle Reseller logo on the website. Ebay, Craigslist, etc are not authorized resale avenues. The only exceptions to the above sources are vouchers from programs that provide a discount on exams, or vouchers from your employer who has purchased them through their partner program or with learning credits. These vouchers may not purchased by you, but may be provided to you from: Oracle Academy Oracle Workforce Development Partner Your employer who has purchased vouchers directly from Oracle  This investment is too important to trust to chance. Be sure that you are purchasing your voucher from a reputable source so that you can free your mind to prepare for your exam. View the full Oracle Certification Exam Voucher Use Policy.

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• Why don't I have a loop error with these redirects?

  - by byronyasgur

  I know this may seem a bit of a question in reverse, but I actually don't seem to have a problem I just want to make sure before I proceed. I have 2 domains domain1.com and domain2.com and a directory my_directory at domain2.com. I have domain2.com setup as an "add on domain" in the cpanel account of domain1.com so that when I go to domain2.com I am taken to domain1.com/my_directory but the browser shows domain2.com in the addressbar so it looks and acts like and is a separate site. However when people browse to domain1.com/directory I want the address bar to show domain2.com not domain1.com/directory. So I put a redirect in the htaccess file to redirect domain1.com/directory to domain2.com and it works perfectly, but I think it shouldnt and I'm worried I've done something wrong. My question is this: domain2.com was already redirected to domain1.com/directory in the first place (I see the redirect in my cpanel under addon domains) so by adding the second redirect in the htaccess file I should be creating a loop! Could somebody please set my mind at rest and show me why not?

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• Which is more important in a web application code promotion hierarchy? production environment to repo equivalence or unidirectional propagation?

  - by ghbarratt

  Lets say you have a code promotion hierarchy consisting of several environments, (the polar end) two of which are development (dev) and production (prod). Lets say you also have a web application where important (but not developer controlled) files are created (and perhaps altered) in the production environment. Lets say that you (or someone above you) decided that the files which are controlled/created/altered/deleted in the production environment needed to go into the repository. Which of the following two sets of practice / approaches do you find best: Committing these non-developed file modifications made in the production environment so that the repository reflects the production environment as closely and as often as possible. Generally ignoring the non-developed production environment alterations, placing confidence in backups to restore the production environment should it be harmed, and keeping a resolution to avoid pushing developments through the promotion hierarchy in the reverse direction (avoiding pushing from prod to dev), only committing the files found in the production environment if they were absolutely necessary in other environments for development. So, 1 or 2, and why? PS - I am currently slightly biased toward maintaining production environment to repository equivalence (option 1), but I keep an open mind and would accept an answer supporting either.

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• What features are helpful when performing remote debugging / diagnostics?

  - by Pemdas

  Obviously, the easiest way to solve a bug is to be able to reproduce it in-house. However, sometimes that is not practical. For starters, users are often not very good at providing you with useful information. Customer Service: "what seems to be the issue?" User: "It crashed!" To further compound that, sometimes the bug only occurs under certain environmentally conditions that can not be adequately replicated in-house. With that in mind, it is important to build some sort of diagnostic framework into your product. What types of built-in diagnostic tools have you used or seen used? Logging seems to be the predominate method, which makes sense. We have a fairly sophisticated logging frame work in place with different levels of verbosity and the ability to filter on specific modules (actually we can filter down to the granularity of a single file). Error logs are placed strategically to manufacture a pretty good representation of a stack trace when an error occurs. We don't have the luxury of 10 million terabytes of disk space since I work on embedded platforms, so we have two ways of getting them off the system: a serial port and a syslog server. However, an issue we run into sometimes is actually getting the user to turn the logs on. Our current framework often requires some user interaction.

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• Google affecting my SERP Rank?

  - by Asad Moeen

  The following are some of my website's details. Home-page: [thebluewaffles].[com] Keywords: Blue Waffles- Rest of the keywords are post/subject specific. Site Description: Health Articles Blog Site Age: 1.5 years A short history: When I started my website, the few things in my mind when posting content were at-least 500 words on each page and writing of all the articles with to the point information. I didn't go really fast with it which is why I only have about 15 articles in 1.5 years. The SEO strategy was more simple. I shared links through Social Marketing websites and some Article Sharing websites after which I could see my website's rankings in top 5 SERP results. I ranked good enough for about 8 months continuously but didn't keep updating content due to which there were some 3 rough months when no content was posted due to some personal work. The SERPS dropped to 2nd page in April and almost started disappearing in May. I asked a lot of people about it and most came up with the reason of "no updates to site" so I started updating my site again since the day, November has almost started and I see no signs of my website's ranking. Another important point is that when I post a new article, and do a title search in Google, I see it ranks good enough for the first 10 hours and then disappears. What could be wrong here?

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• How to manage long running background threads and report progress with DDD

  - by Mr Happy

  Title says most of it. I have found surprising little information about this. I have a long running operation of which the user wants to see the progress (as in, item x of y processed). I also need to be able to pause and stop the operation. (Stopping doesn't rollback the items already processed.) The thing is, it's not that each item takes a long time to get processed, it's that that there are usually a lot of items. And what I've read about so far is that it's somewhat of an anti-pattern to put something like a queue in the DB. I currently don't have any messaging system in place, and I've never worked with one either. Another thing I read somewhere is that progress reporting is something that belongs in the application layer, but it didn't go into the details. So having said all this, what I have in mind is the following. User request with list of items enters the application layer. Application layer gets some information from the domain needed to process the items. Application layer passes the items and the information off to some domain service (should the implementation of this service belong in the infrastructure layer?) This service spins up a worker thread with callbacks for both progress reporting and pausing/stopping it. This worker thread will process each item in it's own UoW. This means the domain information from earlier needs to be stored in some DTO. Since nothing is really persisted, the service should be singleton and thread safe Whenever a user requests a progress report or wants to pause/stop the operation, the application layer will ask the service. Would this be a correct solution? Or am I at least on the right track with this? Especially the singleton and thread safe part makes the whole thing feel icky.

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• Co-worker uses ridiculous commenting convention, how to cope? [closed]

  - by Jessica Friedman

  A co-worker in the small start-up I work at writes (C++) code like this: // some class class SomeClass { // c'tor SomeClass(); // d'tor ~SomeClass(); // some function void someFunction(int x, int y); }; // some function void SomeClass::someFunction(int x, int y) { // init worker m_worker.init(); // log LOG_DEBUG("Worker initialized"); // find current cache auto it = m_currentCache.find(); // flush if (it->flush() == false) { // return return false } // return return true } This is how he writes 100% of his code: a spacer line, a useless comment which says nothing other than what is plainly stated in the following statement, and the statement itself. This is absolutely driving me insane. A simple class written by him spans 3 times as much as it's supposed to, It looks well commented but the comments contain no new information. In fact the code is completely undocumented in any normal definition of "documentation". All of the comments are just a repetition of what is written in C++ in the following line. I've confronted him several times about it and each time he seems to understand what I am saying but then goes on to not change his coding and not fix old code which is written like this. I've went on and on again and again about the distinct disadvantages of writing code like this but nothing get through to him. Other co-workers doesn't seem to mind it as much and management doesn't seem to really care. What do I do? (sorry for the rant)

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• BI-Applications Special Price Promotion for Partners

  - by Mike.Hallett(at)Oracle-BI&EPM

  Partners should keep in mind the “Midsize Market” pricing promotion for BI-Applications solution packages, with reduced minimums applicable to Oracle's Business Intelligence Products, and a pre-approved 50% discount. ·       Partners additionally get their normal e-business reseller discount. This now makes it most attractive to offer the pre-built BI-Applications such as Manufacturing Analytics, Financial Analytics, Procurement and Spend Analytics, Project Analytics, and Human Resources Analytics, to both customers newly implementing Oracle ERP, and for the many existing Oracle ERP (eBusiness suite, Peoplesoft and JDE) customers. To answer any questions, and to get the partner document with further details of this offer, or to work with us on our local sales campaigns targeting existing ERP customers, please send your query to [email protected] or [email protected]: or discuss it with your local Oracle Sales or Channel representative for Applications to Midsize Enterprises.  This promotion is ONLY for End Customers whose organisations have an Annual Revenue (or Public Sector Budget) below $500 million, and who are based in Europe, the Middle East or Africa. For more information see the orginal article, “New fy13 BI-Applications Price Promotion for MIDSIZE CUSTOMERS”  and send your query to [email protected].

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• Why are bugs responsible for big deficiencies in functionality given such low priority?

  - by keepitsimpleengineer

  Well, first of all, change is inevitable and mostly good. Furthermore attempts at simplifying the User Interface such as Gnome 3, Unity to make Linux more inclusive hold much promise, even though they adversely affect my style of working. Additionally, though now retired, I have worked with computers for 47 years, and though I do nothing serious for others now, I still do heavy duty things. 10.04 LTS is my big workstation, and I had three 10.10 systems for Mythtv, and one of which is further adapted for video & related. The Mythtv were 10.10 because of a dormant bug regarding installing to 10.04. My work habits consistently use dual monitors and compiz cube and 3D windows with the computing horsepower to support them. The dual monitors with separate X screens has been not been functional since 11.04, and cube/3D windows not functional in Unity, and with diminished functionality Gnome. There is a bug filed (after upgrade to 12.04 amd64 Gnome Classic not properly draw second screen) I have mitigated the situation some by switching to Xubuntu and eschewing Unity. The question that comes to mind is why this bug is not given more attention in that it nearly cuts functionality in half for more competent workstations. Sample workspace... Please know that I appreciate all the hard work, dedication require to pull off something as big as Ubuntu et al.

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• What did programmers do before variable scope, where everything is global?

  - by hydroparadise

  So, I am having to deal with seemingly archiac language (called PowerOn) where I have a main method, a few datatypes to define variables with, and has the ability to have sub-procedures (essentially void methods) that does not return a type nor accepts any arguements. The problem here is that EVERYTHING is global. I've read of these type of languages, but most books take the aproach "Ok, we use to use a horse and cariage, but now, here's a car so let's learn how to work on THAT!" We will NEVER relive those days". I have to admit, the mind is struggling to think outside of scope and extent. Well here I am. I am trying to figure out how to best manage nothing but global variables across several open methods. Yep, even iterators for for loops have to be defined globaly, which I find myself recycling in different parts of my code. My Question: for those that have this type experience, how did programmers deal with a large amount of variables in a global playing field? I have feeling it just became a mental juggling trick, but I would be interested to know if there were any known aproaches.

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• A quick hello to the Western Kentucky .NET User Group

  - by Muljadi Budiman

  A few days back, I got a chance to speak at the Western Kentucky .NET User Group meeting in Murray, Kentucky.  The opportunity came up because the original speaker, Jeff Blankenburg, had another obligation and was thus unable to come to this meeting.  I volunteered to deliver his presentation, which is an overview of MIX10 conference. It was a great experience for me; got to drive around and do a little bit of sight-seeing – can’t say I’ve ever been to Kentucky before, so first trip ever there.  I got to meet the user group’s current lead, Tom Turner and got to chat and discuss about all kinds of stuff with the other members.  Cheers to Matt Gawarecki and Brandon Sharp! The presentation itself mostly covers new features in Visual Studio 2010, which was recently released on April 12 – got to demonstrate Historical Debugging in IntelliTrace, Parallel Stacks, View Call Hierarchy and show some Extensions.  We also covered some of the new functionalities in Silverlight 4 (using webcams, drag & drop support among others) and I got to show off Scott Guthrie’s Windows Phone 7 Twitter app.  Altogether, it was quite a bit to cover in 70 minutes or so, but I think everyone enjoyed it. Jeff provided me with the presentation slides (which I modify a bit) and demo applications; so I’m putting it up here for those that may be interested in downloading them.  Please keep in mind that all the demos were made with VS2010 RC, so there may be slight tweaks to get it to work on the RTM version.

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• How to handle editing a large file for a non-technical user

  - by Luke

  I have a client who is given a tab delimited .txt file containing hundreds of thousands of rows. I have a user story as follows: As a user I want to take the text file and add a new value at the end of each line which contains the concatenated value of two of the columns. for example if the file read text_one text_two I need to output the following (preferably to a .txt file) text_one text_two text_onetext_two My first approach was to ask the vendor supplying the file to do the concatenation before providing the file, the easiest way to solve a problem is to eliminate it right? however they are very uncooperative and have point blank refused. I've looked at building a simple javascript application that does this client side so a non-technical user could select the file using a file selector. This approach has a few problems The file could be over a GB in size and so can't be loaded straight into memory, I've tried and the browser crashes There is no means to write a file in javascript so I'd need to output the content to the screen and have the user save it (somehow) I was thinking if I could get around the filesize limitations I could just output the edited content to the page and have the user save the page as a .txt file, however I think there is a better way than using javascript that will still accommodate the users lack of technical know-how. Please consider this question to be stack agnostic, but bear in mind that a nice little shell script or python script would be deemed unsuitable for a non technical user unless there is a way of "packaging" it nicely for a non-technical user. Updates The file is too large to open in excel. The process needs to be run weekly, but it doesn't require scheduling or automation...(yet)

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• The Simplicity of the Oracle Stack

  - by user801960

  For many retailers, technology is something they know they need to optimise business operations, but do they really understand it and how can they select the solutions they need from the many vendors on the market? Retail is a data heavy industry, with the average retailer managing thousands of SKUs and hundreds of categories through multiple channels. Add to this the exponential growth in data driven by social media and mobile activities, and the process can seem overwhelming. Handling data of this magnitude and analyzing it effectively to gain actionable insight is a huge task, and needs several IT components to work together harmoniously to make the best use of the data available and make smarter decisions. With this in mind, Oracle has produced a video to make it easier for businesses to understand its global data IT solutions and how they integrate seamlessly with Oracle’s other solutions to enable organisations to operate as effectively as possible. The video uses an orchestra as an analogy for IT solutions and clever illustration to demonstrate the value of the Oracle brand. This video can be viewed at http://medianetwork.oracle.com/video/player/1622148401001. To find out more about how Oracle’s products and services can help retailers to deliver better results, visit the Oracle Retail website.

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• Working with a company as a Junior Developer [closed]

  - by user1601973

  We all have started our careers in some way or other. Well, I am a college student based in North America & I am doing my second internship with the same company with which I did my first internship. I came back here because people here were helpful always and supportive. But it just happened today, and I wanted to share this on SO. Well since I started I have been doing documentation and that kind of stuff only as compared to my first internship in which I actually worked along with the developers & learned so many things. Well, I was in a conversation with my Team lead, and he asked me if I completed that particular work or not? Well, That particular work had slipped from my mind. He was indeed I kind of pissed, and said "You don't have to worry about it, I will figure out". Well, I felt so bad and was about to literally cry. I stopped my lunch and then went on to complete that work. I always ask for work in office, and I always try to be an asset for whoever I am working but this was the first time that it happened. What are your thoughts on this and should I apologise or not? I think I should.

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• Oracle BPM Marketing Update

  - by JuergenKress

  Thanks to Ajay Khanna from the global marketing team for the comprehensive BPM marketing overview: Content and Collateral Whitepaper: What's New in Oracle BPM Suite 11g: Review By Bruce Silver Business Driven Process Management Analyst Report: [Ovum] SWOT Assessment: Oracle BPM Suite 11g Solution Brief: Managing Unpredictability with BPM for Adaptive Case Management Solution brief: BPM in the Public Sector: Increasing Efficiency and Responsiveness Datasheet: Automating Financial Reports Approval with Oracle Process Accelerators Financial Services Loan Origination Business Account Opening Electronic Forms Management Public Sector Incident Reporting Oracle Process Accelerators for Horizontal Solutions Employee Onboarding References: BPM Suite Customers in Action Video: Avea Legal Department runs Better with BPM University of Melbourne Improves Efficiency with Oracle BPM Press: San Joaquin County Leverages Oracle to Deliver Better Services to its 650,000 Residents On-Demand Assets Webcast: New Directions with Business-Driven BPM - New Oracle BPM Suite Extend Your Applications with Oracle Business Process Management Screen Cast: Customer Experience on Your Mind? Think BPM + Social + Mobile Video: Introducing Oracle BPM Suite Assessment Tool : BPM Maturity Self Assessment Blog Series Transforming Public Sector With Process Excellence New Oracle Process Accelerators in Financial Services & Telco Blog: Detect, Analyze, Act Fast with BPM Part I - Manage Processes, the way Octopus does Part II - Perry Mason and the Case of the Unstructured Process Part III - Managing the Unstructured, the Flexible and the Adaptive Resource Kits BPM Resource Kit Financial Services: BPM in Financial Services Public Sector: Transforming Public Sector with Process Excellence SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: BPM,bpm marketing,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• Java EE @ Devoxx UK

  - by delabassee

  Devoxx UK is taking place next week (12th and 13th June) in London. As with any Devoxx conference, this UK edition will have a nice mix of content, an impressive list of speakers and obviously Java EE will be well will covered too:  Apache TomEE, Java EE Web Profile and more on Tomcat (David Blevins) Myths, Tales and Voodoo - About Java EE and Testing (Adam Bien) 50 new features of Java EE 7 (Antonio Goncalves & Arun Gupta) Java EE 7 Hands-on Lab (Arun Gupta) In addition, there will be 2 BoF related to Java EE on Thursday evening, the first BoF will be about the Java EE platform and the second one will be about the Java EE Reference Implementation, i.e. GlassFish. I will participate in the Java EE Community BoF where will discuss Java EE general but with all recent activities, I suspect that a large portion of the BoF will spent on discussing the current plans for Java EE 8.  Right after and in the same room, I will join Steve Millidge of C2B2 for the GlassFish is here to stay! BoF. The goal is to discuss on GlassFish, the current status, the plans for the next release, how the community can contributes, etc. It should be mentioned that attending those BoFs is completely free, just make sure to register here.  So if you are in London next week, mind the Geek and see you at Devoxx UK!

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• Why is C++ often the first language taught in college?

  - by Casey Patton

  My school starts the computer science curriculum with C++ programming courses, meaning this is the first language that many of the students learn. I've seen that many people dislike C++, and I've read a variety of reasons why. It almost seems to be popular opinion that C++ isn't a very good language. I get the impression it's not very liked based on some questions on StackExchange as well as posts such as: http://damienkatz.net/2004/08/why-c-sucks.html http://blogs.kde.org/node/2298 http://blogs.cio.com/esther_schindler/linus_torvalds_why_c_sucks http://www.dacris.com/blog/2010/02/16/why-c-sucks-part-2/ etc. (Note: It is not my opinion that C++ is a bad language. In fact, it's the main language I use. However, the internet as well as some professors have given me the impression that it's not a very widely liked language. In fact, one of my professor constantly rags on C++, yet it's still the starting language at my college!) With that in mind, why is this the first language taught at many schools? What are the reasons for starting a programming curriculum with C++? Note: This question is similar to "Is C++ suitable as a first language", but is a little different since I'm not interested in whether it's suitable, but why it's been chosen.

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• Remote Debugging

  - by Pemdas

  Obviously, the easiest way to solve a bug is to be able to reproduce it in house. However, sometimes that is not practical. For starters, users are often not very good at providing you with useful information. Costumer Service: "what seems to be the issue?" User: "It crashed!" To further compound that, sometimes the bug only occurs under certain environmentally conditions that can not be adequately replicated in house. With that in mind, it is important to build some sort of diagnostic framework into your product. What type of solutions have you seen or used in your experience? Logging seems to be the predominate method, which makes sense. We have a fairly sophisticated logging frame work in place with different levels of verbosity and the ability to filter on specific modules (actually we can filter down to the granularity of a single file). Error logs are placed strategically to manufacture a pretty good representation of a stack trace when an error occurs. We don't have the luxury of 10 million terabytes of disk space since I work on embedded platforms, so we have two ways of getting them off the system: a serial port and a syslog server. However, an issue we run into sometimes is actually getting the user to turn the logs on. Our current framework often requires some user interaction.

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• Where to place the R code for R+Sweave+LaTeX workflow

  - by claytontstanley

  I spent the last week learning 3 new tools: R, Sweave, and LaTeX. One question that came to my mind though when working through my first project: Where do I place the majority of the R code? The tutorials that I read online placed the majority of the R code in the LaTeX .Rnw file. However, I find having a bunch of R calculations in the LaTeX file distracting. What I do find extremely helpful (of course) is to call out to R code in the LaTeX file and embed the result. So the workflow I've been using is to place 99% of my R code in my .R file. I run that file first, save a bunch of calculations as objects, and output the .Rout file once finished (to save the work). Then when running Sweave, I load up that .Rout file, so that I have the majority of my calculations already completed and in the Sweave R session. Then my LaTeX callouts to R are quite simple: Just give me the XTable stored in 'res.table', or give me the result of an already-computed calculation stored in the variable 'res'. So I push towards the minimal amount of R code in the LaTex file possible, to achieve the desired result (embedding stats results in the LaTeX writeup). Does anyone have any experience with this approach? I'm just worried I might run into trouble further down the line, when I start really trying to load up and leverage this workflow.

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• System testing - making sure the system conforms to specification. Validation?

  - by user970696

  After weeks of research I have nearly completed my thesis, yet I am unable to clear up my confusion contained in all previous threads here (and in many books): During system testing, we check the system function against system analysis (functional system design) - but that would fit to a definition of verification according to many books. But I follow ISO12207, which considers all testing as validation (making sure work product meets requirement for intended use). How can I justify that unit testing or system testing is validation, even though when I check it against specification? Which fullfils the definiton of verification? When testing that e.g. "Save button" works, is it validation? This picture shows my understanding of V&V, so different from many other sources, including ISTQB etc. Essential problem I have is that a book using the same picture also states on another place that: test activities in the area of validation are usability, alpha and beta testing. For verification, testable system requirements are defined whose correct implementation can be tested through system tests. Isn't that the opposite of what the picture says? Most books present the following picture, where validation is just making sure that customer needs are satisfied. Mind you that according to ISO, validation activity is testing.

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• How to update entity states and animations in a component-based game

  - by mivic

  I'm trying to design a component-based entity system for learning purposes (and later use on some games) and I'm having some troubles when it comes to updating entity states. I don't want to have an update() method inside the Component to prevent dependencies between Components. What I currently have in mind is that components hold data and systems update components. So, if I have a simple 2D game with some entities (e.g. player, enemy1, enemy 2) that have Transform, Movement, State, Animation and Rendering components I think I should have: A MovementSystem that moves all the Movement components and updates the State components And a RenderSystem that updates the Animation components (the animation component should have one animation (i.e. a set of frames/textures) for each state and updating it means selecting the animation corresponding to the current state (e.g. jumping, moving_left, etc), and updating the frame index). Then, the RenderSystem updates the Render components with the texture corresponding to the current frame of each entity's Animation and renders everything on screen. I've seen some implementations like Artemis framework, but I don't know how to solve this situation: Let's say that my game has the following entities. Each entity have a set of states and one animation for each state: player: "idle", "moving_right", "jumping" enemy1: "moving_up", "moving_down" enemy2: "moving_left", "moving_right" What are the most accepted approaches in order to update the current state of each entity? The only thing that I can think of is having separate systems for each group of entities and separate State and Animation components so I would have PlayerState, PlayerAnimation, Enemy1State, Enemy1Animation... PlayerMovementSystem, PlayerRenderingSystem... but I think this is a bad solution and breaks the purpose of having a component-based system. As you can see, I'm quite lost here, so I'd very much appreciate any help.

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• Fixed Assets Recommended Patch Collections

  - by Cindy A B-Oracle

  After the introduction of the Recommended Patch Collections (RPCs) in late 2012, Fixed Assets development has released an RPC about every six months.  You may recall that an RPC is a collection of recommended patches consolidated into a single, downloadable patch, ready to be applied.  The RPCs are created with the following goals in mind: Stability:  Address issues that occur often and interfere with the normal completion of crucial business processes, such as period close--as observed by Oracle Development and Global Customer Support. Root Cause Fixes:  Deliver a root cause fix for data corruption issues that delay period close, normal transaction flow actions, performance, and other issues. Compact:  While bundling a large number of important corrections, the file footprint is kept as small as possible to facilitate uptake and minimize testing. Reliable:  Reliable code with multiple customer downloads and comprehensive testing by QA, Support and Proactive Support.  There has been a revision to the RPC release process for spring 2014.  Instead of releasing product-specific RPCs, development has released a 12.1.3 RPC that is EBS-wide.  This EBS RPC includes all product-recommended patches along with their dependencies. To find out more about this EBS-wide RPC, please review Oracle E-Business Suite Release 12.1.3+ Recommended Patch Collection 1 (RPC1) (Doc ID 1638535.1).

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