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• Oracle Financials In the News

  - by Di Seghposs

  Coming off of OpenWorld and all the excitement around Oracle’s “Cloud” strategy, we thought we’d share what others had to say recently about Oracle’s financial solutions in and out of the cloud: Information Management, the educated reader’s choice for the latest news, commentary and feature content serving the information technology and business community, had an interesting blog post from Bill McNee of Saugatuck Technology, entitled, “A Bull Market for Finance Cloud Apps”. In the post, he highlights Oracle as one of the ‘significant players’ in the space… Oracle: As recently announced, Oracle is now aggressively marketing its Oracle Fusion Financials Cloud Service to midsize and large enterprise customers. While we anticipate that this solution set will primarily appeal to a portion of the existing Oracle customer footprint, rather than taking share from competitors, it is embedding some strong mobile and social capabilities that should help it gain traction. Read the full article - “A Bull Market for Finance Cloud Apps” Ventana Research, a leading benchmark research and advisory services firm, made mention to Oracle Fusion Financials in a recent blog post. While we all know ‘boring is cool’, it was cool to see Robert Kugel, SVP Research, discussing Oracle’s Fusion Financials strategy. Here’s some excerpts: “For at least the next five years I believe Oracle has a good strategy, because the transition from the existing Oracle ERP offerings to Fusion Financials can be less painful than similar migrations…” “Deploying Fusion GL can facilitate a more consistent and faster way to execute finance department functions.” “Fusion Financials is the go-forward accounting and financial applications suite that will coexist…” “Whether or not it’s time to migrate, I think all users of Oracle’s E-Business Suite, Oracle Applications, PeopleSoft and JD Edwards software should consider Fusion GL as part of an ongoing program to extract more value from their core financial systems.” Read the full article - “Oracle Fusion Financials: Boring is Cool”

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• Becoming a Certified Information Professional

  - by Lance Shaw

  Yesterday, we participated with AIIM in a webinar about the Certified Information Professional (CIP) program that they are now offering.  The interest level is very high in the program, as evidenced by the high turnout at the event. You might be asking yourself, what does the Oracle WebCenter team care about an AIIM certification program? Well, we sponsored this program because we consistently find that the more educated our customers and prospects are, the more value they are going to get out of the technology we provide.  As an ECM vendor, we provide plenty of WebCenter product training and certifications to help you make the most of WebCenter technology. While these are essential and valuable, technologists that also have an operational command of the business and the various impacts that the flow of information can have are even more valuable to an organization. Thinking about the management of content and information and its effect on business process can have wide-ranging benefits, not only to your company but to your personal bottom line.  And let's be honest, a customer who is looking holistically at how content is managed is going to see more opportunities to leverage that content and in many cases, this will motivate the purchase of additional product licenses.   Now if you are regretting the fact that you missed the webinar yesterday, never fear!  It is now available for playback and you can view it at your convenience by visiting the AIIM website. We hope you find it informative and that you can personally profit from being able to showcase your certification as an Information Professional. Additionally, we hope it will help you identify additional opportunities to leverage Oracle WebCenter in order to further reduce your operational costs and drive your business forward.

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• Good practice or service for monitoring unhandled application errors for a small organization

  - by palto

  I'm working with multiple software with varying ways of monitoring for errors. When I make software, I usually send email with the stack trace to admins(usually me). Some customer software is monitored by a team who check that a particular batch run was successfull. Other software might not have any monitoring at all(someone will call when things go wrong horribly). Sending emails is good, except when things start going wrong, my mail gets filled fast. Also I don't want to solve the same problem in code for every software. Is there some relatively cheap and low maintenance software or practice to handle this. I want it to be cheap/low maintenance because usually I work alone or in teams of 5 or smaller. For example it would be great if errors would be aggregated so I don't get 10 000 emails when something unexpected happens... For clarification: By unhandled errors I mean Exceptions that were unhandled by application code that were propagated to Tomcat or Jboss. I don't need help with how to catch those errors. I need help with what to do with them. Is there any cloud application that I could send my errors to? Or some simple server to install? Or some library that can handle errors using configuration files. I use Java if that is any help.

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• User Experience Monitoring with Enterprise Manager Cloud Control 12c and Real User Experience Insight 12R1 Demo Now Available!

  - by JuergenKress

  For access to the Oracle demo systems please visit OPN and talk to your partner expert We are pleased to announce the availability of the Oracle real user experience Insight demo that showcases some of the key capabilities of user experience monitoring. This demo specifically focuses on business reporting, integrated performance diagnostics, tracking of customer journey’s through RUEI’s userflow tracking capabilities and it’s key performance Iidicators tracking and configuration. Demo Highlights The demo showcases the following capabilities of real user experience Insight. Application-centric dashboard Integration with Oracle Enterprise Manager 12c – JVMD, ADP and BTM Session diagnostics and user session replay Monitoring through “Key Performance Indicators” (KPI) --- create alerts/incidents FUSION Application centric dashboards & integrated BI Demo Instructions Go to the DSS website for Oracle Partners. On the Standard Demo Launchpad page, click on the link “Real User Experience Insight 12c (Aug ‘12)” (tagged as “NEW”), under the “Applications Management” section. The demo launchpad page contains a link to a detailed demo script with instructions on how to show the demo. BPM 11.1.1.5 for Apps: BPM for EBS Demo available For access to the Oracle demo systems please visit OPN and talk to your Partner Expert 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 Mix Forum Technorati Tags: User Experience Monitoring,EM12c,Demo,dss SOA,IDM,SOA Community,Oracle SOA,Oracle BPM,BPM,Community,OPN,Jürgen Kress

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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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• Do support sites like stackoverflow upset the paid-support open source model?

  - by ajax81

  In order to stay relevant in the marketplace, I'm researching new business models for my software company. The open source model with paid support seems like a good fit for our product, but I have concerns about whether or not a paid support model is viable in an era where top-notch help is readily available for free on sites like those in the StackExchange network. Case in point -- I moved my employees to Ubuntu last year because I didn't want to pay for Win 7 licenses and new hardware (plus, the mono platform was highly attractive). My staff had no Linux experience, but were able to achieve relative competency in about 120 days with the help of AskUbuntu, StackOverflow, and a few "For Dummies" books. We did employ an Ubuntu consultant for 7 days to provide training and support, but beyond that spent $0.00 on any kind of paid expertise. In regards to my due diligence, I ran a 3 month beta of the freemium-paid-support model with one of our smaller customers, and achieved mediocre results. I'd like to think its because our software is so stable and easy to use that the customer didn't need much paid support, but I suspect that they circumvented the terms of our SLA in the same manner that we did with the move to Ubuntu. Does anyone out there has any thoughts, advice, or experience relevant to the move I'm considering? What worked, what didn't, etc? Thanks in advance!

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• Want to tap into a niche market. Do I create new site or bolt on to existing site?

  - by nitbuntu

  Hi, After a lot of heard work and a few years of perseverance, I'm seeing regular sales on my website which have been steadily growing over the past year. However, the entrepreneur in me wants tap into a niche market which I've become very interested in. It's possible to bolt on this niche onto my existing site as an additional category, without it looking too out of place; my new category of products would also benefit from the ranking my current site gets. The kind of people who would purchase these new niche products, however, are very particular and obsessive about detail. So, for example, many Vegetarians would not eat in KFC even if they were to introduce a new range of Veggie burgers. So, I thought it best to create a new website and since my existing site was created using an 'old-school' shopping cart and there are many more up-to-date, feature-rich, ones available now, I wanted to use a different shopping cart system. My dilemma is that I already have 2 websites (1 b2c and another b2b site) and maintaining a 2nd b2c site would end up vastly increasing my workload and I fear that I would not be able to pay adequate attention to all the sites. Moreover, the additional customer service work (e.g. answering emails from many separate email accounts) could end up being too confusing and difficult to maintain. The easy answer would be to take on an employee, but I'm just not earning enough to justify this yet. If anyone has any tips or experience they'd like to share, which could help me answer this question, I'd be highly grateful.

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• Oracle Value Chain Summit 2014 - Early Bird Registration Now Open

  - by Pam Petropoulos

  Get the Best Rate on the Biggest Supply Chain Event of the Year. Register Now and save $200. Join more than 1,000 of your peers at the Value Chain Summit to learn how smart companies are transforming their supply chains into information-driven value chains. This unparalleled experience will give you the tools you need to drive innovation and maximize revenue. Date: February 3-5, 2014 Location: San Jose McEnery Convention Center Click here to learn more Thought-Leading Speakers Top minds and tech experts across industries will share the secrets of their success, firsthand. Prepare to be inspired by speakers like Geoffrey Moore, business advisor to Cisco, HP, and Microsoft and best-selling author of six books, including Crossing the Chasm. Customized Experiences Choose from more than 200 sessions offering deep dives on every aspect of supply chain management: Product Value Chain, Procurement, Maintenance, Manufacturing, Value Chain Execution, and Value Chain Planning. Unrivaled Insight & Solutions Hands-on workshops, product demonstrations, and interactive breakouts will showcase new value chain solutions and best practices to help you: -  Grow profit margins -  Build products – faster and cheaper -  Expedite delivery -  Increase customer satisfaction You don't want to miss this once-a-year event. Register Now to secure the Early Bird rate of $495 - the lowest price available.

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• UK Pilot Event: Fusion Applications Release 8 Simplified UI: Extensibility & Customization of User Experience

  - by ultan o'broin

  Interested? Of course you are! But read on to understand the what, why, where, and the who and ensure this great opportunity is right for you before signing up. There will be some demand for this one, so hurry! What: A one-day workshop where Applications User Experience will preview the proposed content for communicating the user experience (UX) tool kit intended for the next release of Oracle Fusion Applications. We will walk through the content, explain our approach and tell you about our activities for communicating to partners and customers how to customize and extend their Release 8 user experiences for Oracle Fusion Applications with composers and the Oracle Application Development Framework Toolkit. When and Where: Dec. 11, 2013 @ Oracle UK in Thames Valley Park Again: This event is held in person in the UK. So ensure you can travel! Why: We are responding to Oracle partner interest about extending and customizing Simplified UIs for Release 7, and we will be use the upcoming release as our springboard for getting a powerful productivity and satisfaction message out to the Oracle ADF enterprise methodology development community, Fusion customer implementation and tailoring teams and to our Oracle partner ecosystem. This event will also be an opportunity for attendees to give Oracle feedback on the approach too, ensuring our messaging and resources meets your business needs or if there is something else needed to get up and running fast! Who: The ideal participants for this workshop are who will be involved in system implementation roles for HCM and CRM Oracle Fusion Applications Release 8, as well as seasoned ADF developers supporting Oracle Fusion Applications. And yes, Cloud is part of the agenda! How to Register: Use this URL: http://bit.ly/UXEXTUK13 If you have questions, then send them along right away to [email protected]. Deadline: Please RSVP by November 1, 2013.

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• Social Retailing

  - by David Dorf

  For retailers the move to mobile has been obvious.  More and more consumers are interacting with retailers, both online and in the store, using their mobile devices.  Retailers are quick to invest in both consumer facing mobile apps as well as ones to equip employees.  But when I talk to retailers about social, the value isn't as clear-cut.  Intuitively, retailers know that better relationships with customers will result in higher sales, but the trip to get there has many paths. The interesting thing about social media is that it has the potential to permeate all parts of the business.  Obviously it works well for marketing, but it also has a place with recruiting, knowledge management, trend analysis, and employee collaboration.  Information gathered from social media can enhance existing processes like assortment planning, product development, space planning, promotion planning, and replenishment.  Letting the customer influence each of these areas helps align the experience. One of the things holding retailers back is the lack of consistent and integrated tools to manage social media and make sense of the huge amounts of data.  To that end Oracle has been aggressively acquiring in the space, as depicted in the infographic below.  Soon, social will get the same level of investment as mobile. The Social CRM Arms Race: A Timeline - An infographic by the team at Pardot Marketing Automation

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• Empty APN list on your Android phone? Restart the phone to fix it

  - by Gopinath

  Today I tried to connect to internet on my Google Galaxy Nexus running on 4.2.2 using Cellular Data connection and it failed. Tried reaching customer care representative to figure out why data connection is not working, but the robots (Interactive Voice Response systems) never allowed me to reach a human. After digging through the settings I found empty list of APN (Access Point Names) is the reason for not able to connect to internet. Not sure what caused APN list to vanish but I tried to create a new one that matches with the settings required for AT & T mobile. To my surprise I found that the newly created APN is also not shown in the APN list. Well there is something wrong with the phone – my APN’s are not shown as well as the newly created one is also not displayed. A simple Google search on this problem shown many forum discussions list and the solution to resolve the issue is to restart the phone. As soon as I restarted my phone the APN list is automatically populated and I’m able to connect to internet on my mobile.

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• NINE Great Reasons to Attend the GlassFish Community Event at JavaOne 2012

  - by Alexandra Huff

  Are you coming to the annual GlassFish Community Event at JavaOne this year? Here are nine great reasons not to miss it! Great company Meet and mingle with community leaders and luminaries, the GlassFish engineering team, and Oracle executives! Learn from others How are your peers using GlassFish in creative ways? A few community members will share their challenges and creative solutions. Ask tough questions Meet Oracle GlassFish and Middleware executives; the panel discussion will be moderated by one of our stellar community leaders! Shirts! Be sure to get this year's GlassFish T-shirt, designed by and voted on by YOU, our community members! Don't miss it - they go fast. Share your story Give us a two minute update on why you love GlassFish and how you are using it! We will immortalize you in a very brief video and post it to our GlassFish Stories page! Find out... about the new book, hot off the press, authored by our very own Arun Gupta: "Java EE 6 Pocket Guide: A Quick Reference for Simplified Enterprise Java Development" If you share... your story, you will win a copy of Arun's new book as our thank you gift! Suggest... some ideas on how to make GlassFish even better! Have fun Lively discussion, news and updates, excellent company -- this is THE place to be on Sunday at JavaOne! Convinced? Excellent! Then please register here! A JavaOne Pass is required to enter Moscone Center. All passes accepted, including Discover, Exhibitor, Press, Blogger, etc. Agenda 11:00 - 11:05: Introduction 11:05 - 11:30: Roadmap and Community Updates 11:30 - 12:15: Q&A with Executive Speaker Panel from Oracle and the GlassFish Team 12:15 - 01:00: Customer Testimonials Location: Moscone West, Room 2005 Add sessions UGF10359 and UGF10360 to Schedule Builder

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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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• Virtualization or Raw Metal?

  - by THE

  Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} With the growing number of customers who want to run the Oracles EPM/BI (or other Fusion Middleware Software) in a virtualized environment, we face a growing number of people asking if running Oracle Software within VMware is supported or not. Two KM articles reflect Oracles policy towards the use of VMware: 249212.1 and 475484.1 . The bottom line is: “you may use it at your own risk, but Oracle does not recommend it”. So far we have seen few problems with the use of VMware (other than performance and the usual limitations) but Oracle does not certify its software for the use in VMware (and specifically for RAC Software actively refuses any support) and any issue that may occur will be fixed for the native OS only. It is on the customer to prove that the issue is NOT due to VMware in case that an issue is encountered. See: “Oracle Fusion Middleware Supported System Configurations page” And also “Supported Virtualization and Partitioning Technologies for Oracle Fusion Middleware”

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• Generalist Languages: Dying or Alive and Well?

  - by dsimcha

  Around here, it seems like there's somewhat of a consensus that generalist programming languages (that try to be good at everything, support multiple paradigms, support both very high- and very low-level programming), etc. are a bad idea, and that it's better to pick the right tool for the job and use lots of different languages. I see three major areas where this is flawed: Interfacing multiple languages is always at least a source of friction and is sometimes practically impossible. How severe a problem this is depends on how fine-grained the interfacing is. Near the boundary between the two languages, though, you're basically limited to the intersection of their features, and you have to care about things like binary interfaces that you usually wouldn't. Passing complex data structures (i.e. not just primitives and arrays of primitives) between languages is almost always a hassle. Furthermore, shifting between different syntaxes, different conventions, etc. can be confusing and annoying, though this is a fairly minor complaint. Requirements are never set in stone. I hate picking a language thinking it's the right tool for the job, then realizing that, when some new requirement surfaces, it's actually a terrible choice for that requirement. This has happened to me several times before, usually when working with languages that are very slow, very domain specific and/or has very poor concurrency/parallelism support. When you program in a language for a while, you start to build up a personal toolbox of small utility functions/classes/programs. The value of these goes drastically down if you're forced to use a different language than the one you've accumulated all this code in. What am I missing here? Why shouldn't more focus be placed on generalist languages? Are generalist languages as a category dying or alive and well?

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• Website Ethics / legal issues, image copyrights

  - by RailsN00b

  Ignoring the technical implementation of a website for a second, assume a website that is similar to twitter but with pictures. A user say something and puts a picture of whatever they said. As the nature of the internet, the images will most likely not be his/hers image. There are 2 options that I see for dealing with this: 1. The user will post a URL of the picture and the website will pull the picture from that URL everytime someone enters that page 2. The website will save the image in its own database of images and display the image to the visitors 'locally' The problem with option #1, while it saved storage, I see an issue with 'stealing' other websites bandwidth and if my website has many many visitors it could cost the image-hosting websites a lot and possible even crash it if the server can't handle the load. The problem with opion #2, while it saves the load to other websites, it practically takes pictures that could have copyright on them. Which option is better to implement in terms of legal issues and ethics? When do I need to contact another website to request permission to use the images from that site? Does anyone really care about that anymore. Where can I read about this?

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• Experiencing the New Social Enterprise

  - by kellsey.ruppel

  Social media and networking tools, popularly known as Web 2.0 technologies, are rapidly transforming user expectations of enterprise systems. Many organizations are investing in these new tools to cultivate a modern user experience in an “Enterprise 2.0” environment that unlocks the full potential of traditional IT systems and fosters collaboration in key business processes. Here are some key points and takeaways from some of the keynotes yesterday at the Enterprise 2.0 Conference: Social networks continue to forge complex connections between people, processes, and content, facilitating collaboration and the sharing of information The customer of today lives inside of Facebook, on your web, or has an app for that – and they have a question – and want an answer NOW Empowered employees are able to connect to colleagues, build relationships, develop expertise, self-select projects of interest to them, and expand skill sets well beyond their formal roles A fundamental promise of Enterprise 2.0 is that ideas will be generated and shared by everyone across the organization, leading to increased innovation, agility, and competitive advantage How well is your organizating delivering on these concepts? Are you able to successfully bring together people, processes and content? Are you providing the social tools your employees want and need? Are you experiencing the new social enterprise?

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• Of transactions and Mongo

  - by Nuri Halperin

  Originally posted on: http://geekswithblogs.net/nuri/archive/2014/05/20/of-transactions-and-mongo-again.aspxWhat's the first thing you hear about NoSQL databases? That they lose your data? That there's no transactions? No joins? No hope for "real" applications? Well, you *should* be wondering whether a certain of database is the right one for your job. But if you do so, you should be wondering that about "traditional" databases as well! In the spirit of exploration let's take a look at a common challenge: You are a bank. You have customers with accounts. Customer A wants to pay B. You want to allow that only if A can cover the amount being transferred. Let's looks at the problem without any context of any database engine in mind. What would you do? How would you ensure that the amount transfer is done "properly"? Would you prevent a "transaction" from taking place unless A can cover the amount? There are several options: Prevent any change to A's account while the transfer is taking place. That boils down to locking. Apply the change, and allow A's balance to go below zero. Charge person A some interest on the negative balance. Not friendly, but certainly a choice. Don't do either. Options 1 and 2 are difficult to attain in the NoSQL world. Mongo won't save you headaches here either. Option 3 looks a bit harsh. But here's where this can go: ledger. See, and account doesn't need to be represented by a single row in a table of all accounts with only the current balance on it. More often than not, accounting systems use ledgers. And entries in ledgers - as it turns out – don't actually get updated. Once a ledger entry is written, it is not removed or altered. A transaction is represented by an entry in the ledger stating and amount withdrawn from A's account and an entry in the ledger stating an addition of said amount to B's account. For sake of space-saving, that entry in the ledger can happen using one entry. Think {Timestamp, FromAccountId, ToAccountId, Amount}. The implication of the original question – "how do you enforce non-negative balance rule" then boils down to: Insert entry in ledger Run validation of recent entries Insert reverse entry to roll back transaction if validation failed. What is validation? Sum up the transactions that A's account has (all deposits and debits), and ensure the balance is positive. For sake of efficiency, one can roll up transactions and "close the book" on transactions with a pseudo entry stating balance as of midnight or something. This lets you avoid doing math on the fly on too many transactions. You simply run from the latest "approved balance" marker to date. But that's an optimization, and premature optimizations are the root of (some? most?) evil.. Back to some nagging questions though: "But mongo is only eventually consistent!" Well, yes, kind of. It's not actually true that Mongo has not transactions. It would be more descriptive to say that Mongo's transaction scope is a single document in a single collection. A write to a Mongo document happens completely or not at all. So although it is true that you can't update more than one documents "at the same time" under a "transaction" umbrella as an atomic update, it is NOT true that there' is no isolation. So a competition between two concurrent updates is completely coherent and the writes will be serialized. They will not scribble on the same document at the same time. In our case - in choosing a ledger approach - we're not even trying to "update" a document, we're simply adding a document to a collection. So there goes the "no transaction" issue. Now let's turn our attention to consistency. What you should know about mongo is that at any given moment, only on member of a replica set is writable. This means that the writable instance in a set of replicated instances always has "the truth". There could be a replication lag such that a reader going to one of the replicas still sees "old" state of a collection or document. But in our ledger case, things fall nicely into place: Run your validation against the writable instance. It is guaranteed to have a ledger either with (after) or without (before) the ledger entry got written. No funky states. Again, the ledger writing *adds* a document, so there's no inconsistent document state to be had either way. Next, we might worry about data loss. Here, mongo offers several write-concerns. Write-concern in Mongo is a mode that marshals how uptight you want the db engine to be about actually persisting a document write to disk before it reports to the application that it is "done". The most volatile, is to say you don't care. In that case, mongo would just accept your write command and say back "thanks" with no guarantee of persistence. If the server loses power at the wrong moment, it may have said "ok" but actually no written the data to disk. That's kind of bad. Don't do that with data you care about. It may be good for votes on a pole regarding how cute a furry animal is, but not so good for business. There are several other write-concerns varying from flushing the write to the disk of the writable instance, flushing to disk on several members of the replica set, a majority of the replica set or all of the members of a replica set. The former choice is the quickest, as no network coordination is required besides the main writable instance. The others impose extra network and time cost. Depending on your tolerance for latency and read-lag, you will face a choice of what works for you. It's really important to understand that no data loss occurs once a document is flushed to an instance. The record is on disk at that point. From that point on, backup strategies and disaster recovery are your worry, not loss of power to the writable machine. This scenario is not different from a relational database at that point. Where does this leave us? Oh, yes. Eventual consistency. By now, we ensured that the "source of truth" instance has the correct data, persisted and coherent. But because of lag, the app may have gone to the writable instance, performed the update and then gone to a replica and looked at the ledger there before the transaction replicated. Here are 2 options to deal with this. Similar to write concerns, mongo support read preferences. An app may choose to read only from the writable instance. This is not an awesome choice to make for every ready, because it just burdens the one instance, and doesn't make use of the other read-only servers. But this choice can be made on a query by query basis. So for the app that our person A is using, we can have person A issue the transfer command to B, and then if that same app is going to immediately as "are we there yet?" we'll query that same writable instance. But B and anyone else in the world can just chill and read from the read-only instance. They have no basis to expect that the ledger has just been written to. So as far as they know, the transaction hasn't happened until they see it appear later. We can further relax the demand by creating application UI that reacts to a write command with "thank you, we will post it shortly" instead of "thank you, we just did everything and here's the new balance". This is a very powerful thing. UI design for highly scalable systems can't insist that the all databases be locked just to paint an "all done" on screen. People understand. They were trained by many online businesses already that your placing of an order does not mean that your product is already outside your door waiting (yes, I know, large retailers are working on it... but were' not there yet). The second thing we can do, is add some artificial delay to a transaction's visibility on the ledger. The way that works is simply adding some logic such that the query against the ledger never nets a transaction for customers newer than say 15 minutes and who's validation flag is not set. This buys us time 2 ways: Replication can catch up to all instances by then, and validation rules can run and determine if this transaction should be "negated" with a compensating transaction. In case we do need to "roll back" the transaction, the backend system can place the timestamp of the compensating transaction at the exact same time or 1ms after the original one. Effectively, once A or B visits their ledger, both transactions would be visible and the overall balance "as of now" would reflect no change.  The 2 transactions (attempted/ reverted) would be visible , since we do actually account for the attempt. Hold on a second. There's a hole in the story: what if several transfers from A to some accounts are registered, and 2 independent validators attempt to compute the balance concurrently? Is there a chance that both would conclude non-sufficient-funds even though rolling back transaction 100 would free up enough for transaction 117 (some random later transaction)? Yes. there is that chance. But the integrity of the business rule is not compromised, since the prime rule is don't dispense money you don't have. To minimize or eliminate this scenario, we can also assign a single validation process per origin account. This may seem non-scalable, but it can easily be done as a "sharded" distribution. Say we have 11 validation threads (or processing nodes etc.). We divide the account number space such that each validator is exclusively responsible for a certain range of account numbers. Sounds cunningly similar to Mongo's sharding strategy, doesn't it? Each validator then works in isolation. More capacity needed? Chop the account space into more chunks. So where  are we now with the nagging questions? "No joins": Huh? What are those for? "No transactions": You mean no cross-collection and no cross-document transactions? Granted - but don't always need them either. "No hope for real applications": well... There are more issues and edge cases to slog through, I'm sure. But hopefully this gives you some ideas of how to solve common problems without distributed locking and relational databases. But then again, you can choose relational databases if they suit your problem.

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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 visualize the design of a program in order to communicate it to others

  - by Joris Meys

  I am (re-)designing some packages for R, and I am currently working out the necessary functions, objects, both internal and for the interface with the user. I have documented the individual functions and objects. So I have the description of all the little parts. Now I need to give an overview of how the parts fit together. The scheme of the motor so to say. I've started with making some flowchart-like graphs in Visio, but that quickly became a clumsy and useless collection of boxes, arrrows and-what-not. So hence the question: Is there specific software you can use for vizualizing the design of your program If so, care to share some tips on how to do this most efficiently If not, how do other designers create the scheme of their programs and communicate that to others? Edit: I am NOT asking how to explain complex processes to somebody, nor asking how to illustrate programming logic. I am asking how to communicate the design of a program/package, i.e.: the objects (with key features and representation if possible) the related functions (with arguments and function if possible) the interrelation between the functions at the interface and the internal functions (I'm talking about an extension package for a scripting language, keep that in mind) So something like this : But better. This is (part of) the interrelations between functions in the old package that I'm now redesigning for obvious reasons :-) PS : I made that graph myself, using code extraction tools on the source and feeding the interrelation matrix to yEd Graph Editor.

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• Managing arbitrary user permissions under PureFTPd

  - by Sebastián Grignoli

  I need to provide an FTP service that needs to be web-managed in the simplest way possible. My customer wants to create folders and users, and give them read only or read/write access arbitrarily. For example: The folder 'Documents' should be read only for several users, writable for internal users, and invisible for the rest. The folder 'Pictures' should be read only for journalists, writable for associates, and invisible for the rest. The folder 'Media' should be read only, writable or invisible for arbitrary users specified on the admin. There could be a large number of users and folders. I can't find a good way to accomplish that. I thought that I could give each user a home folder and put symlinks for the folders he has read access to, and make the user part of the folder's group when he has write access too, but now I think that this wouldn't work, because with PureFTPd (or ProFTPd) I can only specify the virtual user's mapping to a system user, and only one GUID for each virtual user. My approach requires that I could specify several GUIDs for each user (one by each folder he has write access to). I need to start programming this admin and I still don't know wich approach would work, if any. ¿Any ideas?

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• foobar.com working, but www.foobar.com not working?

  - by dpmattingly

  I am setting up a web site for a client. She is using GoDaddy for domain registration, and a hosting company I have never used before. After setting up the nameservers on GoDaddy's side, the address foobar.com (for example) is correctly directing to the new site. However, the address www.foobar.com is redirecting to a 404 page on the hosting company's side. I've been dealing with customer service on the hosting side, and they have told me various things including wait for DNS propagation (which has obviously happened since the 404 page is on their side), and to make sure that the nameservers on GoDaddy's side were entered in lower case instead of upper case (which I know doesn't matter since nameservers are case insensitive). I think I'm getting the runaround from the hosting company, but the client had signed up with them before I came to the project, so if possible I'd like to resolve this issue with them before we start treating it as a loss. Does anybody know what could cause foobar.com to resolve correctly but www.foobar.com to not resolve? How would I best be able to suggest a fix to this through the technical support channels of a hosting company?

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• Advantage of Software Development [on hold]

  - by user93319

  The worth of a brand that a corporation carries is way too high than its physical presence. If you are venturing into an online business, you need to take special care about the corporate image of your business. Nowadays, it is very important for every organization to have its own website. To enhance the online presence of a company it is important to have a good website design as well as the blueprint of the design. A quality site can enhance organizational growth and it can lend a hand an in achieving company’s goals promptly. When websites have gained so much meaning, it is advisable for an organization to seek professional support for the construction of its own exclusive portals. Expert help may again is essential when one needs for a complete renovation on the Web. Any group is necessary to do a bit of introspection before it make a decision to look for the services of a professional web software development company. It is good to be completely clear-headed regarding one’s requirements. To start with, a business should be familiar with who its potential clientele are. Once this main factor has been give consideration, an association can go ahead and get its website designed accordingly. On approaching a corporation that offers software development services India to its customers, a client can make sure that their site is ready with all the most up-to-date features. Professional Assistance Matters Professional service supplier is identified to furnish a site with easy to use features that prompt visitors to come back again and again. Yet one more benefit of receiving aid from professionals is that they can let you know of the type of content that you should place on display over your site. For example, a business that wants to draw the interest of experts belong to the corporate world must make sure that the language used on its website is crisp and official.

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• Is it a bad idea to release software on the night before Christmas?

  - by Conor

  We're about to go live with a new version of our system. It's getting really close to Christmas. I work in a very small company. Everyone will be on leave or sporadically available over the next week or so. I've argued with my boss that this is very risky and that we should go live in the new year when everyone is back and when we can provide full support. He is unflinching - he argues that we need to go live sooner - so that we can get new users and more revenue which we need. The number of new users will be minor amount over the next week or so. There has been a decent amount of system testing performed on the system. However a new live system, in my experience, needs a lot of care and attention in the first few days. Am I being pessimistic or realistic? Update - January: The system did not go live over Christmas. Ongoing system testing revealed various problems. So no support issues to deal with. Still preparing for release...

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• Download Google+ Android App

  - by Gopinath

  You can access Google’s new social networking service,Google+, on your Android mobile phones using a native application. Google+ for mobile makes sharing the right things with the right people a lot simpler. Huddle lets you send super-fast messages to the people you care about most. With your permission, Instant Upload automatically puts the photos and videos you take into a private album in the cloud, so you can share them anytime, from anywhere. And no matter where you are, the stream lets you stay in the loop about what your friends are sharing and where they’re checking in. Here is a demonstration video of Google+ for Android. Google will release a native app for iPhone soon and there is no word on when they are going to release Google+ for other mobiles like Windows Phone 7, BlackBerry and Nokia. By the way you need invitation to access Google+ and you can request for one over here (more information on how to get Google+ Invite) Download Google+ for Android from Market Place This article titled,Download Google+ Android App, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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