HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). HEDTEK DEV BLOG: MOBILE Rhodes is a cross-platform open source mobile development framework that is inspired by Ruby on Rails. in some aspects of development.Rhodes was developed by RhoMobile, which was recently acquired by Motorola Solutions. We started checking out Rhodes a year ago when using Snow Leopard as a development platform, and developed

some trial apps.

HEDTEK DEV BLOG: A RHODES JOURNEY Rhodes is a cross-platform open source mobile development framework that is inspired by Ruby on Rails. in some aspects of development.Rhodes was developed by RhoMobile, which was recently acquired by Motorola Solutions. We started checking out Rhodes a year ago when using Snow Leopard as a development platform, and developed

some trial apps.

LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: PAAS First was the task of getting the environment variables from Appfog to match up to the ones expected by Meteor. Meteor uses MongoDB, so first I added a MongoDB service on HEDTEK DEV BLOG: A "HELLO, WORLD" FROM FILE BY CHEF First there was "Hello, World", Chef-style.Then again with attributes.Now to complete this short trilogy, we add some File interaction into the mix, deploying a text file in a step-by-step style Once again, start by configuring an exercise for the new recipe.Create config/from-hello_world-run-cookbook_file.json with

{"run_list": }

HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: MAVERICK ADVENTURES WITH GOOGLE AUTHENTICATOR Please note, this article assumes you're somewhat familiar with running commands in a terminal and editing system files. If you are not comfortable with this, I'd suggest you don't particularly want to mess around with these things just yet. HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). HEDTEK DEV BLOG: MOBILE Rhodes is a cross-platform open source mobile development framework that is inspired by Ruby on Rails. in some aspects of development.Rhodes was developed by RhoMobile, which was recently acquired by Motorola Solutions. We started checking out Rhodes a year ago when using Snow Leopard as a development platform, and developed

some trial apps.

HEDTEK DEV BLOG: A RHODES JOURNEY Rhodes is a cross-platform open source mobile development framework that is inspired by Ruby on Rails. in some aspects of development.Rhodes was developed by RhoMobile, which was recently acquired by Motorola Solutions. We started checking out Rhodes a year ago when using Snow Leopard as a development platform, and developed

some trial apps.

LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: PAAS First was the task of getting the environment variables from Appfog to match up to the ones expected by Meteor. Meteor uses MongoDB, so first I added a MongoDB service on HEDTEK DEV BLOG: A "HELLO, WORLD" FROM FILE BY CHEF First there was "Hello, World", Chef-style.Then again with attributes.Now to complete this short trilogy, we add some File interaction into the mix, deploying a text file in a step-by-step style Once again, start by configuring an exercise for the new recipe.Create config/from-hello_world-run-cookbook_file.json with

{"run_list": }

HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: MAVERICK ADVENTURES WITH GOOGLE AUTHENTICATOR Please note, this article assumes you're somewhat familiar with running commands in a terminal and editing system files. If you are not comfortable with this, I'd suggest you don't particularly want to mess around with these things just yet. HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches. HEDTEK DEV BLOG: ENCRYPTED CHEF NODE DATA When dealing with Chef, you frequently want to store data in an encrypted form so that your Chef Server doesn't become a single point of vulnerability for the security of your entire infrastructure. For this purpose, Chef has the concept of an Encrypted Data Bag. Also when dealing with Chef, you frequently want to generate certain bits of data and remember them for future runs. HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects.

HEDTEK.COM

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HEDTEK DEV BLOG: A "HELLO, WORLD" WITH ATTRIBUTES FROM CHEF Following on from the minimal Hello, World, this post continues to explore Chef from a development perspective. Attributes parameterise Chef scripts. Let's introduce an attribute Begin by creating a new exercise, to run the with_attributes recipe (created later) from our hello_world cookbook.Save {"run_list": } HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: METEOR JS Here at Hedtek we are all passionate about technology, always eager to try out something new: Like playing with a new web framework that has just been released, or even experimenting to see whether it's possible to have 4 different displays on a single Ubuntu machine (more about

this

HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches. HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: PAAS First was the task of getting the environment variables from Appfog to match up to the ones expected by Meteor. Meteor uses MongoDB, so first I added a MongoDB service on HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: A "HELLO, WORLD" FROM FILE BY CHEF First there was "Hello, World", Chef-style.Then again with attributes.Now to complete this short trilogy, we add some File interaction into the mix, deploying a text file in a step-by-step style Once again, start by configuring an exercise for the new recipe.Create config/from-hello_world-run-cookbook_file.json with

{"run_list": }

HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects. HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: PAAS First was the task of getting the environment variables from Appfog to match up to the ones expected by Meteor. Meteor uses MongoDB, so first I added a MongoDB service on HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: A "HELLO, WORLD" FROM FILE BY CHEF First there was "Hello, World", Chef-style.Then again with attributes.Now to complete this short trilogy, we add some File interaction into the mix, deploying a text file in a step-by-step style Once again, start by configuring an exercise for the new recipe.Create config/from-hello_world-run-cookbook_file.json with

{"run_list": }

HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects. HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

SLIDE 1WEB VIEW

Paper Prototyping Anyone can do it With common tools and materials Useful steps: Personas Who are your users? Write personas that bring them to life Bill is a 52 year old lecturer who has only recently moved to a smartphone. HEDTEK DEV BLOG: METEOR JS Here at Hedtek we are all passionate about technology, always eager to try out something new: Like playing with a new web framework that has just been released, or even experimenting to see whether it's possible to have 4 different displays on a single Ubuntu machine (more about

this

HEDTEK DEV BLOG: PHANTOMJS ON UBUNTU PhantomJS is a web stack with JavaScript but without a user interface. These qualities are useful more widely but today I'm interested in fast integration testing for a website in EmberJS, Ruby and Rails. Time to make PhantomJS 1.5.0 run on Ubuntu Oneiric (11.10) PhantomJS avoids make, autoconf et al, preferring to roll their own build

system.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: PAAS First was the task of getting the environment variables from Appfog to match up to the ones expected by Meteor. Meteor uses MongoDB, so first I added a MongoDB service on HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: A "HELLO, WORLD" FROM FILE BY CHEF First there was "Hello, World", Chef-style.Then again with attributes.Now to complete this short trilogy, we add some File interaction into the mix, deploying a text file in a step-by-step style Once again, start by configuring an exercise for the new recipe.Create config/from-hello_world-run-cookbook_file.json with

{"run_list": }

HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects. HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: PAAS First was the task of getting the environment variables from Appfog to match up to the ones expected by Meteor. Meteor uses MongoDB, so first I added a MongoDB service on HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: A "HELLO, WORLD" FROM FILE BY CHEF First there was "Hello, World", Chef-style.Then again with attributes.Now to complete this short trilogy, we add some File interaction into the mix, deploying a text file in a step-by-step style Once again, start by configuring an exercise for the new recipe.Create config/from-hello_world-run-cookbook_file.json with

{"run_list": }

HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects. HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

SLIDE 1WEB VIEW

Paper Prototyping Anyone can do it With common tools and materials Useful steps: Personas Who are your users? Write personas that bring them to life Bill is a 52 year old lecturer who has only recently moved to a smartphone. HEDTEK DEV BLOG: METEOR JS Here at Hedtek we are all passionate about technology, always eager to try out something new: Like playing with a new web framework that has just been released, or even experimenting to see whether it's possible to have 4 different displays on a single Ubuntu machine (more about

this

HEDTEK DEV BLOG: PHANTOMJS ON UBUNTU PhantomJS is a web stack with JavaScript but without a user interface. These qualities are useful more widely but today I'm interested in fast integration testing for a website in EmberJS, Ruby and Rails. Time to make PhantomJS 1.5.0 run on Ubuntu Oneiric (11.10) PhantomJS avoids make, autoconf et al, preferring to roll their own build

system.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: A RHODES JOURNEY Rhodes is a cross-platform open source mobile development framework that is inspired by Ruby on Rails. in some aspects of development.Rhodes was developed by RhoMobile, which was recently acquired by Motorola Solutions. We started checking out Rhodes a year ago when using Snow Leopard as a development platform, and developed

some trial apps.

HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects. HEDTEK DEV BLOG: HTML5 LOCAL STORAGE HTML5 brings developers lots of shiny new toys, varying in maturity and adoption.I'm happy to report that local storage — a stash of data persisted locally by the browser — now works wonderfully well on Mozilla Firefox 11 and Google Chrome 18. Or at least as well as could be expected Some important consequences follow from the specification. In particular, local storage is sandboxed by HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

HEDTEK DEV BLOG: TESTING STRATEGY PART 2 Following on from looking at code coverage and the central question of "How can you demonstrate that your tests are correct?" I'd like to consider another aspect of bayesian evidence - the tests themselves. Taking the viewpoint of strong evidence and weak evidence again, I'd like to examine what level of evidence various tests provide. HEDTEK DEV BLOG: TESTING STRATEGY PART 3 After looking at code coverage and unit tests, I'd like to jump to the other end of the testing spectrum and examine what sort of Bayesian evidence an acceptance test provides. Again, this is skirting around the central question of "How can you demonstrate that your tests are correct?" The first thing I need to establish is what type of test I refer to with the label 'acceptance test'. HEDTEK DEV BLOG: A RHODES JOURNEY Rhodes is a cross-platform open source mobile development framework that is inspired by Ruby on Rails. in some aspects of development.Rhodes was developed by RhoMobile, which was recently acquired by Motorola Solutions. We started checking out Rhodes a year ago when using Snow Leopard as a development platform, and developed

some trial apps.

HEDTEK DEV BLOG: USING AMAZON TO SCALE JMETER Most of the art of load testing is discovering the right question. Once you know the question, the right approach almost always becomes clear. For example, when we wanted to know how a Rails app scaled, we picked Apache Benchmark.This worked well, producing the solid statistical evidence we were searching for, to be graphed and digested

within a report.

HEDTEK DEV BLOG: AVOIDING DEVELOPER INTERRUPTS I'm going to start posting here about our lean and agile development processes. They will fit more here than on the main Hedtek blog.A fitting start is the elimination of waste and in particular waste caused by developers not being 'zoned in' and focusing totally on development processes. HEDTEK DEV BLOG: A "HELLO WORLD" FROM CHEF If - like me - you're a developer beginning to play around with Chef, perhaps you've found that many quick start tutorials seem more Ops than Dev. Read on for a Hello, World mixed with some opinions about development on Chef. Thanks toJonathan Otto and morethanseven for blazing this trail. An efficient feedback loop matters to me, and isolation between projects. HEDTEK DEV BLOG: HTML5 LOCAL STORAGE HTML5 brings developers lots of shiny new toys, varying in maturity and adoption.I'm happy to report that local storage — a stash of data persisted locally by the browser — now works wonderfully well on Mozilla Firefox 11 and Google Chrome 18. Or at least as well as could be expected Some important consequences follow from the specification. In particular, local storage is sandboxed by HEDTEK DEV BLOG: COMPILED ASSET WOES Rails 3.1 introduced the asset pipeline, which is a great addition but can cause some unfortunate issues. One that has recently been an issue for us is a cascade of behaviours that individually are all perfectly reasonable but, when combined, leave you with major headaches.

HEDTEK DEV BLOG

The second type of file is an implementation file. These also have sprocket directives that will pull in required dependencies. For example, a screen widget item will pull in lower-level widgets and components (such as autogrowing text fields, or in-line editor code). LIBUX: IMPROVING USER EXPERIENCE IN LIBRARIES WITHIN THE 3 Table of contents Executive summary 2 1 Library user experience 4 2 The changing landscape 5 2.1 Hardware and platforms 7 2.1.1

Smartphones 7

SLIDE 1WEB VIEW

Paper Prototyping Anyone can do it With common tools and materials Useful steps: Personas Who are your users? Write personas that bring them to life Bill is a 52 year old lecturer who has only recently moved to a smartphone. HEDTEK DEV BLOG: METEOR JS Here at Hedtek we are all passionate about technology, always eager to try out something new: Like playing with a new web framework that has just been released, or even experimenting to see whether it's possible to have 4 different displays on a single Ubuntu machine (more about

this

HEDTEK DEV BLOG: PHANTOMJS ON UBUNTU PhantomJS is a web stack with JavaScript but without a user interface. These qualities are useful more widely but today I'm interested in fast integration testing for a website in EmberJS, Ruby and Rails. Time to make PhantomJS 1.5.0 run on Ubuntu Oneiric (11.10) PhantomJS avoids make, autoconf et al, preferring to roll their own build

system.

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Hedtek

Contract and consultancy services

Interim CTO

Technical project management Product ownership / management Rapid requirements analysis User interface design and evaluation Software engineering and agile coaching

IT strategy

Contact

mark @ hedtek.com

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