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Systems, architecture and engineering solutions!

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  • Blog Post: Costa Concordia: The Goals of Software Architecture

    With the tragedy of the Costa Concordia, design with the human in the control loop comes to mind.  A cruise ship is a large system with many moving parts and error points.  In a large mechanical system like a ship have long used computers, in the past the computers might have been the sextant...
  • Blog Post: Software Architecture: Many ways for the beginner, only a few for the master

    Check out this video about Software Architecture, it is 28 minutes, but gives a good overview of what Software Architecture is all about.  The start up picture looks a little weird, but the video is good.   Or download the windows media file and then in Windows media right click on the Windows...
  • Blog Post: Software Contracts, I don’t need no stinking contracts

    Seriously, isn’t it enough to just get the Try, Catch, Throw, then give up code in your project?  Nope, NOW you NEED software contracts.  Dino Esposito writes a tight article on Software Contracts, which I think will be used in my talks (after all I still strongly type my variables). ...
  • Blog Post: Entity Framework 4.1: Install,

    First, you have to install Visual Studio 2010 and then download the ADO.NET Entity Framework 4.1, you download the entity framework from: http://bit.ly/entityframework41 But I don’t want to load all of that junk on my system, well fine, here is a virtual hands on lab: http://bit.ly/entityframeworkvirtualhol...
  • Blog Post: When you develop projects you need to stick with it: NASA Gravity Probe B, 52 years in the making!

    Wow!  52 years to get this experiment to confirm the Theory of Relativity completed.  Wow! The Gravity Probe functioned using four ultra-precise gyroscopes using spheres machined to within 40 atoms of being perfect spheres.  It then pointed at a star named IM Pegasi, and then when the...
  • Blog Post: MCO: More thoughts on the Martian Climate Orbiter

    How many projects have failed in the manner of the MCO, Mars Polar Lander and the Deep Space 2 sub-projects?  Many is the unfortunate answer.  What happened with these probes?  I am placing the full table of analysis here, since NASA seems to be a little slippery with their data stores...
  • Blog Post: WTF: Could F# have saved the Mars Climate Orbiter?

      The Mars Climate Orbiter likely failed due to one sensor passing data in the wrong units to the central processing units on the MCO.  I have created a first cut demonstrating the use of the dimensional analysis capabilities in F#.  It is a simple idea, but one that helps the engineers...
  • Blog Post: Conclusion (10/10)

    Conclusion With over 60 references to a multitude of webcasts, guidance and virtual hands on labs, it is hoped that you have a better idea of how much material is out there. These references have been reduced from approximately 500 source documents. In the pages of the preparation document we have...
  • Blog Post: Testing, Analysis, QA, Reviews 8/10

    Testing, Analysis, QA, Reviews Build and test, then review the results of the software builds; follow up after deployment with the end users to ensure quality assurance, make the changes that improve the quality. It is simple as that, except that it is difficult to implement these processes in a matter...
  • Blog Post: Metrics and Reliability Assessment 7/10

    Metrics and Reliability Assessment Measuring the process of building, installation and implementation of the system under design is required so that costs and time estimates can be tracked. As a software and hardware system is being implemented, project managers have to make many decisions. Costs...
  • Blog Post: Commercial off the Shelf (COTS) Risk Assessments and Reuse 6/10

    COTS Risk Assessments and Reuse Risk assessments End-users often benefit in cost and time to operation by purchasing commercial off the shelf (COTS) technology. The use of COTS can save money, but not always. Implementing processes that utilize COTS software may require special training for...
  • Blog Post: Design in Software Engineering 5/10

    Apologies It has been quite awhile since I last posted to this blog, but I have completed the discussion about Software Engineering and will be posting more regularly. After the completion of my software engineering entries, I will be demonstrating real software engineering using XNA 2.0 (a toolkit...
  • Blog Post: Selecting a programming language 4/10

    In selecting a programming language, a software engineer will need to consider the following: Is it a standards based language? Many programming languages are based on a standard; other languages are standard due to their age or use group size. In this decision: Is the language widely...
  • Blog Post: Requirements and Specification: Software Engineering 3/10

    Requirements and Specification Creation and generation of requirements and specifications, students, unless they are working as consultants or with sales people, may have difficulty understanding how to generate requirements for a project. Undergraduate students often have had little experience with...
  • Blog Post: Life Cycle Models: Introduction to Software Engineering part 2/10

    Life Cycle Models The typical development life cycle involves Envisioning planning, developing, stabilizing and deploying. The Capability Maturity Model Integration (CMMI) is based on the thought that process holds the people and technology together. Quality, Product/project cost and schedule are...
  • Blog Post: Software Engineering: Introduction to Software Engineering Part 1/10

    Introduction : Software engineering is the application of many tools, systems and software to implement broad solutions to the goal of efficient passing of information. To understand a larger system, the webcasts and virtual hands on labs were selected to demonstrate large systems. With corporations...
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