Tag | Architecture Posts

This is the final part in a series of posts based on a talk I gave recently at the Chicago Information Technology Architects Group. Feel free to leave feedback. Application Development Considerations Now we get to the actual building of your solutions. What are the skills and resources that will be needed in order to develop a smartphone application in the enterprise? Language Knowledge One of the first things you need to consider when you are deciding which platform language do you either have the ...
This is part 3 in a series of posts based on a talk I gave recently at the Chicago Information Technology Architects Group. Feel free to leave feedback. Keys Concerns Of Smartphones In The Enterprise These are the factors that you need to be aware of and address in order to build successful enterprise smartphone applications. Most of them have nothing to do with the application itself as you will see here. Managing Devices Managing devices is a factor that is going to effect how much your company ...
This is part 2 in a series of posts based on a talk I gave recently at the Chicago Information Technology Architects Group. Feel free to leave feedback. In the previous post I discussed what reasons a company might have for creating a smartphone application. In this installment I will cover some of history and state of the different platforms as well as features that can be leveraged for building enterprise smartphone applications. Platforms Before you start choosing a platform to develop your solutions ...
This is part 1 in a series of post based on a talk I gave recently at the Chicago Information Technology Architects Group. Feel free to leave feedback. Intro Most of us already carry smartphones. We play games on them. We keep up with what is going on with our friends and our favorite teams. We take pictures of our kids at their events. But the question is if that is all they are good for. Many companies have aspects of their business that lend themselves to being performed by mobile devices. Some ...
The year is quickly coming to an end. This is the most exciting part of the year with technology manufacturers in overdrive trying to release as many products for Christmas as possible. Our group is trying to do our part to bring order to the madness with one last presentation for the year. Norman Murrin will be speaking on November 20th on Adopting Agile Processes in the Enterprise. Be sure to join us by registering at the link below. Register del.icio.us Tags: Chicago Information Technology Architects ...
It is Monday afternoon and the last couple of sessions have been disappointing. I started out in the Nokia: Learning to Tile session. I guess I should have read the summary more closely because it turned out to be more of a Nokia/WP7 history and sales pitch. “I’m outa here!” I made a quick venue change and now we are learning about Private Cloud Architecture. The topic and the material were very informative. The speaker even had a couple of quotable statements. The first quote was “You can trust ...
After reading this section you should be able to Explain how nodes exchange wireless signals Identify potential obstacles to successful transmission and their repercussions, such as interference and reflection Understand WLAN architecture Specify the characteristics of popular WLAN transmission methods including 802.11 a/b/g/n Install and configure wireless access points and their clients Describe wireless MAN and WAN technologies, including 802.16 and satellite communications The Wireless Spectrum ...
Today's Deal of the day from Microsoft Press at http://shop.oreilly.com/pro... is Windows® Internals, Part 1, Sixth Edition."Delve inside Windows architecture and internals—guided by a team of internationally renowned internals experts. Fully updated for Windows 7 and Windows Server 2008 R2, this classic guide delivers key architectural insights on system design, debugging, performance, and support—along with hands-on experiments to experience Windows internal behavior firsthand." ...
Node.js is a server-side JavaScript platform "for easily building fast, scalable network applications". It's built on Google's V8 JavaScript engine and uses an (almost) entirely async event-driven processing model, running in a single thread. If you're new to Node and your reaction is "why would I want to run JavaScript on the server side?", this is the headline answer: in 150 lines of JavaScript you can build a Node.js app which works as an accelerator for WCF REST services*. It can double your ...
Financial Apps feel the need for speed – this can come via parallelization, and via infrastructure - fast messaging and non-blocking distributed memory management. This blogpost gives an overview + examples of various technologies that can squeeze performance out of your trading apps and clock cycles out of your modeling apps. Low Latency via Infrastructure ZeroMQ · ZeroMQ is a messaging library - ‘messaging middleware’ , ‘TCP on steroids’ , ‘new layer on the networking stack’. not a complete messaging ...
For those interested, myself and a few other people from Red Gate will be going to DevWeek 2012 in London this week. I'll be mostly around the .NET and C# talks, but may drop into the architecture and agile talks as well. I'll be blogging interesting stuff I come across as well. If you want to meet up, do feel free to contact me via the blog or on twitter at @simonmcooper. See you there!Cross posted from Simple Talk ...
In my previous post I introduced the architecture of message bus based system, the dispatcher mode and the pulling mode. I also explained a bit about the channel mode and transport extensibility of WCF. And then, in order to make the following sample simple and easy to use I created an in process and in memory message bus. In this post, I will demonstrate how to create a WCF transport extension over this memory message bus, for the most common MEP – Request Reply mode. Before we go to the implementation, ...
Learning Outcomes Name different device categories Discuss the functions and structure of I/.O modules Describe the principles of Programmed I/O Describe the principles of Interrupt-driven I/O Describe the principles of DMA Discuss the evolution characteristic of I/O channels Describe different types of I/O interface Explain the principles of point-to-point and multipoint configurations Discuss the way in which a FireWire serial bus functions Discuss the principles of InfiniBand architecture External ...
Learning Outcomes Explain the advantages of using a large number of registers Discuss the way in which compilers optimize register usage Discuss the evolution of CISC machines Describe the characteristics of RISC architecture Discuss the RISC vs. CISC controversy Describe the way in which RISC and CISC design principles can be combined Instruction Execution Characteristics To understand the the line of reasoning of RISC advocates, we need a brief overview of instruction execution characteristics. ...
Learning Outcomes Describe the operation of a memory cell Explain the difference between DRAM and SRAM Discuss the different types of ROM Explain the concepts of a hard failure and a soft error respectively Describe SDRAM organization Semiconductor Main Memory The two traditional forms of RAM used in computers are DRAM and SRAM DRAM (Dynamic RAM) Divided into two technologies… Dynamic Static Dynamic RAM is made with cells that store data as charge on capacitors. The presence or absence of charge ...
If anyone of you has debugged managed crash dumps, I am sure you must have come across a situation when debugger keeps telling you it’s not able to load mscordacwks.dll. It usually happens when the dump was taken from a machine that had a specific version on .NET framework with patches installed and the machine where the crash dump is being analyzed has different .NET framework version number. When I talk about different version no, I mean the minor version. E.g. Crash dump was taken from machine ...
Learning Outcomes Identify the addressing mode used in a given instruction Give examples of instructions in which specific Pentium addressing modes are used Discuss the advantages and disadvantages of different instruction formats Addressing Addressing mode used in an instruction indicates the way in which the operand is accessed. The most common addressing modes include Immediate Direct Indirect Register Register Indirect Displacement Stack General Note Typically we have two operands in binary operations ...
Today's O'Relley Deal of the day at http://shop.oreilly.com/pro... is Programming Microsoft® ASP.NET 4by Dino Esposito. "Completely reengineered for ASP.NET 4—this definitive guide deftly illuminates the core architecture and programming features of ASP.NET 4 in a single, pragmatic volume. Web development expert Dino Esposito provides essential, architectural-level guidance, along with the in-depth technical insights designed to take you—and your solutions—to the next level. The ...
Nina Grantcharova gave an excellent presentation about Enterprise Architecture Patterns with details and examples in front of a large audience. Nina answered many questions and gave a complete overview of the most important design patters. Thank you to Nina for a great presentation! In the second part of the meeting, I introduced the officers, board of director’s members, and presented the advantages of IASA membership as well as opportunities and ways to get involved in the IASA South East Florida ...
What is Model? A model can be considered as a container that facilitates presentation view, behavior and/or persisting data to/from data source (i.e. database etc). Besides the data container elements, a model may or may not contain behavior (i.e. logic), depending on design context of corresponding architecture. While the term “Model” is frequently discussed and used in Model-View-Controller pattern context, it is one of most important consideration in current world of software architecture. Download ...
In the lifespan of an organisation it’s messaging environment be transitioned to a newer version several times. Whilst this is not a complicated thing to do it does require some level of planning and thought. I’ll be addressing the transitioning from Exchange 2003 to 2007 from a fairly simple view here. Since the general outlines of the process are the same for nearly every situation there is no need for different detailed documents on this. We’ll be working with the following infrastructure in this ...
It's been exactly over three years and two months since I last logged in to this blog. The last post which I made on Dec 2008, was itself after a one year gap :). Well, now let me try if I can continue this activity. Lot of learning, lot of new cool stuffs. Technology itself has been changed quite dramatically over this period with the addition of new cool stuffs and I believe my English as well improved a little bit :). Microsoft developers finally started realizing the drawbacks of ASP.NET architecture ...
Designing for Performance The basic building blocks for todays computers are virtually the same as those of the early IAS computers. The focus has been on optimizing and increasing speeds while keeping the same architecture. Processors Increasing speed with processors uses several techniques including… Branch prediction – a processor looks ahead in the instruction code fetched from memory and predicts which branches or groups of instructions are likely to be processed next. Data flow analysis – the ...
In my previous post, Using LINQ to Twitter in Windows 8 Metro Apps, I cheated a little (some might say a lot) on my UI architecture by using code-behind. In this post, I’ll make it all better by showing you how to separate the model and interaction logic from the UI design – proper separation of concerns. I’ll accomplish this with a pattern, named Model-View-ViewModel (MVVM), which is widely used for WPF, Silverlight, and (soon) Windows 8 Metro Apps. I’ll start by discussing what MVVM is, move to ...
Organization & Architecture Computer architecture – those attributes of a system visible to a programmer or, put another way, those attributes that have a direct impact on the logical execution of a program. Computer organization – the operational units and their interconnections that realize the architectural specifications Examples of computer architectural attributes include… Instruction set The number of bits used to represent various data types I/O mechanisms and techniques for addressing ...
Yesterday I had the pleasure of meeting Chris malavarca who is an account executive for Matalogix. The name Metalogix immediately brought me to think about language and meta-language, rule and meta-rule, and the dangers of mixing between them. Alan Turing envisioned a machine with states, code and an infinite tape. The tape could be in any of infinite positions and be made to move forwards or backwards, the machine could be in any of a finite number of states. The code was a finite transition table ...
Step 9: Completing the Database Setup: This step is a very critical step and should performed with very much attention. Below mentioned steps are the ones which I thought were required for the environment I was building but I very highly recommend that you perform this step from the Oracle Installation document which can be found here. Look at Chapter 7 in this document. Updating PeopleTools System Tables: Here PS_HOME is the directory where you have installed your PeopleTools. In our case its C:\PT852 ...
An interesting discussion popped up on Twitter between myself, Steve Rogalsky, Terry Bunio, Mike Iwasiow, David Alpert, and some others around using hours as a software estimating unit of measure. Steve’s been reading the book Beyond the Goal by Eliyahu M. Goldratt and blogged about his stance on using hours for sizing work items. In a nutshell Goldratt offers the following arguments: Asking someone for a timeframe to complete a task puts their image in jeopardy PMs will always try to squeeze whatever ...
As many of you may already know that, I'm working at a global gaming and entertainment company taking the responsible for design and implement the next generation platform which will be running on the cloud, and also design the cloud platform as well. Currently one of the goal is to replace the active directory integrated security and identity solution with certificate-based solution in our product. In short, we need to work with Active Directory Certificate Service to request and issue the certificates ...
The West Palm Beach Developer Group is off to a good start in 2012 with our special IASA Architecture event on January 24th, 7:00 PM. Microsoft’s Architect Wayne Filin-Matthews will be our speaker on Enterprise Software and Infrastructure Architecture Best Practices. This topic is unique in value as most content will be a reflection of Wayne’s personal experience having successfully helped a multitude of customers with his acquired tacit knowledge of Architecture. To register for this FREE event ...
With TFS 2010 a basic installation of TFS has been reduced to a matter of clicks, the pain however lies in getting an appropriate environment provisioned from the Infrastructure team. There will be planned and unplanned downtime as the infrastructure team takes the environment down for patching. There are various TFS hosting services available out there that’ll take this pain point away from you. Some of the leading players amongst others include DiscountASP.net, TeamDevCentral, Praktik Hosting… ...
I was recently inspired to write on this topic after two client experiences that demonstrated serious misconceptions about the role that software architecture plays in producing quality software. After performing an assessment of a mid-sized company, it was obvious that they were in dire need of a good software architect to design and maintain the design of the application that they were in the process of planning. After making the recommendation, the CIO began to explain that they had already chosen ...
Agility needs to get onto the next level – that´s what I tried to explain in my previous articles. After a reality check – what´s missing from Agile practice? –, and some general musings about how a next level of Agility could look like, here now some very tangible suggestions. Crank up the frequency Current Agile practice is suffering from too little attention to Acceptance. To change this, very, very clear Acceptance dates need to be set. Acceptance can only get into a real pulling mode, if dates ...
OverviewI've been looking into a solution recently which has a series of remote nodes publishing events to a central node. The publishers have no logic, they just need to contact the central node and record that an event has happened. Off the back of that, the central node does some work inferring what the event means, and computing its relationship to a bunch of other events. Simple enough, but the solution needs to be scalable and make efficient use of its resources. I started off building it around ...
Let´s get real about software development: It´s never going to be a quietly flowing river. Never. And that´s why the current approaches to software development like XP, Scrum, and Kanban will always cause pain. Their basic assumption is you should be able to isolate a team for a while to work on features. Leave it alone during an iteration or a sprint to complete a set of features, or at least sit still until the current feature is done. Certainly that´s what we all want as developers: being able ...
Don’t miss out on these great session with Markus Egger in the Dallas office! Where: Microsoft Dallas Office – 7000 SR-161 (George Bush Turnpike), Dallas, TX 75039 When: Tuesday, December 13, 2011 – 1:30 – 4:30 PM Signup for this FREE event in Dallas Join Markus Egger, Microsoft RD and one of the longest running MVPs, for an afternoon of free information. CODE Magazine and EPS Software are in a unique position to share information based on real world experience in projects that are either our own ...
Daytona - Iterative MapReduce on Windows Azure Overview MapReduce is a framework for processing highly distributable problems across huge datasets using a large number of compute nodes. It is a generic mechanism that comprises 2 steps: Map step: The master node takes the input, partitions it up into smaller sub-problems, and distributes them to worker nodes. The worker node processes the smaller problem, and passes the answer back to its master node. Reduce step: The master node then collects the ...
Consider this article on DNS a prequel to the upcoming ADDS series. After all, any active directory implementation requires DNS integration. So what is DNS? DNS is a highly reliable, hierarchal, distributed and scalable database used for name resolution and service location. So basically it translates friendly names (www.contoso.com) in to IP addresses (11.12.13.14) allowing clients to connect to resources in the infrastructure without memorising pesky IP numbers. History of DNS When the DoD initially ...
2011 has been an amazing year in which I ended up working on an exciting number of projects. SharePoint has continued to be the hottest requested technology that I deal with. At the same time Windows Phone 7 has put Microsoft back in the mobile market and I will be finishing off the year additionally writing for this platform. At the same time the old standards of WinForms and ASP.NET have not left our market space. Ultimately, the IT market is still on fire and I am looking forward to great things ...
We are almost at the start of the new year. The group is currently on our December break from presentations but we are looking to return full steam in January. The Chicago Information Technology Architects Group is community driven and as such we are looking for speakers and topics to keep our community thriving. If you have a topic that you would like to present or know someone who has a topic that they love to talk about in the IT Architecture space please contact me through this blog. del.icio.us ...
I presented sessions on MVC .Net and webmatrix. I covered stuff like what’s new in MVC .net and the architecture goodness of MVC pattern. I also demonstrated how MVC 3 / MVC 4 harness HTML 5 / mobile along with Jquery and Modernizr. PHP coding using MVC and Webmatrix and other advanced stuff like hosting PHP on windows or porting MYSQL Db to MSSQL is also is also part of the demo in the sessions. The slide decks are available at below link and all the demo is recorded and also shared at below link. ...
The software industry lives within an interesting paradox. IT in the enterprise moves slowly and cautiously, upgrading only when safe and necessary. IT interests intentionally live in the past. On the other hand, developers, and Independent Software Vendors (ISVs) not only want to use the latest and greatest technologies, but this constituency prides itself on gauging tech’s future, and basing its present-day strategy upon it. Normally, we as an industry manage this paradox with a shrug of the shoulder ...
Here is my general guidance in regards to solutions architecture: Leverage what we have first Gather facts, not opinions when assessing solutions Avoid making early assumptions Prove that issues are real before escalating concerns Present issues or concerns within proper context If prototypes reveal concerns, consider alternative solutions ...
Herve Roggero, SQL Azure MVP, has created a virtual community to focus on Azure. Here is the outline from Herve: User Group Name: Azure Florida Association Purpose: Start a virtual Florida user group that targets the Azure platform Venues: Most meetings will be virtual; however I plan to host a few physical events across Florida if possible from time to time; physical events may be a few hours long with potentially more than one speaker Possible Topics: The topics will touch Azure generally speaking, ...
I am proud to announce the creation of a new virtual user group: the Azure Florida Association. The missiong of this group is to bring national and internaional speakers to the forefront of the Florida Azure community. Speakers include Microsoft employees, MVPs and senior developers that use the Azure platform extensively. How to learn about meetings and the group Go to http://www.linkedin.com/gro... First Meeting Announcement Date: January 25 2012 @4PM ET Topic: Demystifying SQL Azure ...
The discovery phase of any project is both exciting and critical to the project’s success. There are several key points that you need to keep in mind as you navigate this process. The first thing you need to understand is who the players in the project are and what their motivations are for the project. Leaving out a key stakeholder in the resulting product is one of the easiest ways to doom your project to fail. The better the quality of the input you have at this early phase the better chance you ...
I want to bring the Patterns and Practices group to the attention of those who have not already been exposed. I have been a fan of the P&P team since they came out with the original Application Blocks which eventually turned into the Enterprise Library. Their main purpose is to assemble guidance and tools that make it easier for all of us to build amazing solutions. I would simply suggest you spend some time exploring the information and code libraries that they have produced. Free resources ...
At my current position, I’ve been doing quite a bit of Silverlight development and have also been working with TFS2010 build services to enable continuous integration. One of the critical pieces of a successful continuous build setup (and also one of the benefits of having one) is that the build system should be able to “get latest” against the source repository and immediately build with no errors. This can break down both in an automated build scenario and a “new guy” scenario when the solution ...
Performance testing is almost always conducted to address one or more risks related to expense, opportunity costs, continuity, and/or corporate reputation. But not everyone thinks their application requires investment in performance testing. We presented few of our clients who were heavily focussed on functional requirements but did not care too much about the Non-functional requirements with a short questionnaire, User’s will be happy if the website loaded in <= ___ seconds. How many extra seconds ...
I decided it was time to share some of my favorite tools and tricks that I use to make my time in Visual Studio more productive. Naming Standards If you do not already know the name and website IDesign.net, then I suggest you explore them and get to know them well. This is the architecture and design site started by Juval Lowy and now has such .NET architects as Michele Leroux Bustamante, Brian Noyes, Mark Michaelis, Dino Esposito, Miguel A. Castro. I had the luxury of seeing some of their presentations ...