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Comments

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How Does Heartbleed Alter the 'Open Source Is Safer' Discussion?

hughk Why not teach more with open source? (582 comments)

The key issue with this is that many eyes did not check this code. One way to get many eyes is via university. Open source is great for learning about how existing code is written, including safe practices vs. "performance". Usually people are asked to review smaller pieces of code like kernel components as part of coursework. This demonstrates it is useful perhaps to consider other, less sexy bits. Note that changes are being committed over time so there is always new material.

about 3 months ago
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How Munich Abandoned Microsoft for Open Source

hughk Re:Even better (294 comments)

They should give it to one of Munich's biggest banks which is having a nightmare transitioning between Win XP and Win 7.

about 8 months ago
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How Munich Abandoned Microsoft for Open Source

hughk Re:Let me guess (294 comments)

When the hell are those damn FOSS slowpokes going to get off their asses and write their own fucking ludicrous substitute for Exchange?

What people want is groupware of some kind backed by the equivalent of Outlook. Most people don't give a monkeys about Exchange, but complain when the normal functions aren't there. The issue is that Exchange interfaces are mostly an undocumented mess. When MS fix something, they then best connectivity (even with older versions of their own clients).

about 8 months ago
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HP's NonStop Servers Go x86, Countdown To Itanium Extinction Begins

hughk Re:Goes along with the VMS announcement (243 comments)

Does not the supposed realibility of VMS have more to do with the hardware (VAX) than the quality of the software (VMS), afaik the VAX could hot-swap cpu:s and ram live if the hw detected a failure.

The machines were quite solid for the time but I'm not aware of models that supported hot swapping. However individual CPUs could fail as well as memory modules and the system would gracefully degrade. When the service engineer came along, you could shuffle your users onto another cluster node and continue until the node was fixed. The file system was usually structured so that the failure of a node would not impact availability.

about 8 months ago
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HP's NonStop Servers Go x86, Countdown To Itanium Extinction Begins

hughk Re:Goes along with the VMS announcement (243 comments)

I think the US military has been using VMS for mission critical applications - payroll!!!!

about 9 months ago
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Microsoft, Apple and Others Launch Huge Patent Strike at Android

hughk Re:Anti-Trust (476 comments)

Except that to join such a consortium would have directly conflicted Google's stated policy of using patents only in self-defence. At least according to their stated policy, if they had won, the patents would have gone into their war-chest and would not have seen the light of day unless someone tried to sue them for violation.

about 9 months ago
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Smartphone Sales: Apple Squeezed, Blackberry Squashed, Android 81.3%

hughk Re:Ahh, another no-name two-bit "analytics" firm! (390 comments)

In Germany, I see the reverse. There are many iPhones still around that I see either at work or when I use public transport, but I'm seeing more and more Androids, particularly Samsung. I think it comes down comes down to better marketing and a cheaper entry point and, of course, choice.

about 9 months ago
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Smartphone Sales: Apple Squeezed, Blackberry Squashed, Android 81.3%

hughk Re:As a canadian.. (390 comments)

Blackberry Message Server. It is well liked by businesses and understood by their IT people. Yep, I know that both Apple and Android let alone Windows Phone will talk to company MSExchange servers, even offering central device management for remote wipes, but there tends to be a lot of inertia. Some of the Blackberry devices also offer a halfway decent battery life which the modern Smartphones are not.

about 9 months ago
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Smartphone Sales: Apple Squeezed, Blackberry Squashed, Android 81.3%

hughk Re:Are *ALL* Nokia phones *smartphones* ?? (390 comments)

Yep, smartphones sell well to rich people. Poor people can't afford them, and in particular they also have long working days away from charging possibilities. Old style, reliable and long lasting basic phones are still very useful.

about 9 months ago
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Finland's Algorithm-Driven Public Bus

hughk Re:This is discriminating (123 comments)

*everybody* has a cell phone there - preferably from Nokia in the Oulu area

You know, that was what told me that Nokia was doomed. Three years ago, I was staying at the Radisson in Espoo, and I (a non Finn) was the only one there with a Nokia (E71, IIRC), about a couple of km from their world HQ. In the Espoo based company that I was visiting, the standard phone was an iPhone. My Nokia lasted until the end of that year when I went Android!

about 9 months ago
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Gravity: Can Film Ever Get the Science Right?

hughk Re:Moo (438 comments)

Apollo 13, the movie had a lot of footage filmed on the so-called "vomit comet", a zero gravity training plane that flies on a special trajectory. I would guess that it was green screened.

about 9 months ago
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Car Dealers Complain To DMV About Tesla's Website

hughk Re: Missing Point (364 comments)

A good point. Some appartment buildings have communal garages underneath them and power can be available there.

about 10 months ago
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3mm Inexpensive Chip Revolutionizes Electron Accelerators

hughk Re:Foreseeable effects? (113 comments)

the "International Linear Collider requires more than 1 TeV beams

Is this because the LHC is wasting a lot of power with synchrotron radiation? The LHC is already running at about 3.5TeV/beam giving 7TeV collisions. With the upgrade, they should be able to manage 7TeV/beam.

about 10 months ago
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Car Dealers Complain To DMV About Tesla's Website

hughk Re:Missing Point (364 comments)

it's not the moving parts in the engine that cause most of the maintenance costs, it's all the rest of them, like suspension, steering, brakes, air compressors,

All EVs will require most of the above (but remember, the only air compressor is on the a/c). There is no clutch and no conventional auto-transmission. Braking though is partly friction but is also electric (regenerative), this should lengthen the life considerably.

I know what you are getting at but internal combustion engines certainly do need additional maintenance. The issue is at the moment is that we know very little about the total lifespan. I know someone who bought a Tesla Roadster and is very happy with it. It has received no unplanned maintenance but then it is just a couple of years old. No modern car should have a problem that early. Five or ten years on may be another story.

One of the interesting tendancies is that to balance the weight of the batteries, many manufacturers have chosen much more modern materials, so we see aluminium in the Tesla and carbon fibre in say the BMW i3/8. This costs more, but has long term benefits.

I would agree that the battery is and remains the most critical element and this has to be accounted for in any TCO calculation. Again, we do lack information, particularly on the realistic trade in possibilities for a battery. For example, whether it can be reconditioned rather than completely remanufactured? These questions will be answered over the next few years and lets be honest, not everyone is going to rush out and get an all electric vehicle and for many, it isn't even that practical. For all the indentations being made particularly by Tesla, there are many more ICE vehicles. Over time, though there will be further cost reductions and more people may decide to switch.

As more EVs are on the road, there will be an increasing need for a dealer network to provide the necessary downstream support. At the moment, we are talking niche, so to require dealers when there is such a low volume seems impractical.

about 10 months ago
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Car Dealers Complain To DMV About Tesla's Website

hughk Re:Missing Point (364 comments)

Quite simply, a Tesla (or any all electric car) has significantly less moving parts. Faults will occur, but susbstantially less often than with an ICE. Some of those faults though will require very specialist knowledge to fix though.

about 10 months ago
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Russian Government Takes Over Country's 289-year Old Scientific Academy

hughk Re:True Bummer for our friends in Russia (192 comments)

Yes, two recent British Noble prize winners (Graphene) are actually Russian and spent most of their time there.

about 10 months ago
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Linus Torvalds Admits He's Been Asked To Insert Backdoor Into Linux

hughk Re:Would probably be found (576 comments)

In a commercial closed source environment, there are still likely to be far fewer eyes looking at the code. Very few people look deliberately outside their area unless a major problem comes to light (no budget to) and other teams don't like defects being raised against them from outside.

about 10 months ago
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Linus Torvalds Admits He's Been Asked To Insert Backdoor Into Linux

hughk Re:Would probably be found (576 comments)

You also can't perform a proper review with a bunch of hobbyist coders, you need highly-trained experts. Every single line of code needs to be checked, double checked, and triple checked against every single other line in the code to make sure that there isn't anything that could possibly compromise the security of the system. These failures are always subtle and usually unintentional.

If you are writing for some critical applications like a flight control computer then it is clear that there will many formal reviews. However, in most systems, commercial users do not have that luxury. Everything tends to be time boxed. With the status of Linux not only as a usable O/S but also as a teaching tool, new people are studying the kernel all the time (and performing exercises like "how random is the RNG"). However "hobbyist" it may seem, and especially with the methods used by the kernel maintainers, there is probably more scrutiny than with commercial systems.

about 10 months ago
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EU Proposes To Fit Cars With Speed Limiters

hughk Re:No need for cameras. (732 comments)

With just a radar linked cruise-control/collision avoidance system you only know about what the guy immediately in front of you is doing. What you need to know is what the guys in front of him are doing. This is why you want the signal passed through immediately from the lead car so all trailing cars start to reduce speed or brake where necessary like a train - so no human reaction time involved.

A first part would be to simply relay the brake signal backwards. This is not a simple problem because the lead vehicle in the offside lane should not affect a vehicle in the nearside lane other than as a FYI. If the lead car is changing lane or turning, they should surrender their role and the next vehicle takes over. However, this could allow, for a small investment to be able to pass the event of the lead car braking backwards so that it could, be indicated on the dash of each trailing vehicle.

A more complex system would actually apply speed control via throttle or braking based on the info from the lead vehicle, all the way through the trailing vehicles.

about a year ago
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Building Melts Car

hughk Re:Cringe! (151 comments)

This is the point. Making big curved mirrors is expensive, so they use lots of straight pieces of glass to make a nice downwards focussing concave effect. So you take a new building with refelctive film on the windows, and you have a pretty good concentrator. Luckily not a very good one because there is a structure in Spain that gets to 4 figure temperatures.

about a year ago

Submissions

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Laptop Battery Supplies Running Flat

hughk hughk writes  |  more than 6 years ago

hughk writes "After a major fire at South Korean manufacturer, LG Chemical supplies of laptop batteries are tight and are predicted to remain so until Q3. This may reduce supplies and delay introduction of new models at the low-end such as the Asus Eee PC in favour of higher-margin systems. This is a shame as the mini-notebook market was looking to get exciting this year with many announcements from different vendors."
Link to Original Source

Journals

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Risk - A polite name for gambling

hughk hughk writes  |  more than 6 years ago

A while back I was working at a major UK bank in the Risk area. Essentially there are three types of risk that may be interesting to the IT person:

  • Operational Risk - technical failure (may also be a major personnel issue like a flu outbreak, but technical failures are what interest us)
  • Market Risk - the risk that a banks positions in instruments may be exposed by adverse market conditions
  • Credit Risk - the risk that someone you have loaned capital to whether as cash or securities can no longer repay it

All areas should be monitored, but Market and Credit Risk had to be assessed and evaluated on a daily basis and the exposure of the bank controlled. These three types of risk come from the Basel II Accord which was agreed by the Bank of International Settlements in Basel. The BIS is an international organisation setup to ensure that banks area able to work with each other across borders as central banks only work within a country (or in the case of the ECB, a group of countries).

So what was I going to say, well in the old days there were straight equities and there was debt. It started when debt was securitised. The issuer of the debt was assessed (hence the AAA ratings) and the bank would protect itself (by hedging) accordingly. Now debt is being wrapped up with other instruments in something called Credit Risk Derivatives. These allow the risk to be sliced and repackaged into low-risk/low-gain instruments and high-risk/high-gain instruments. Generally the latter are referred to in the industry as toxic waste.

One of the most important things about any instrument held by a bank is there must be a way to value it. In the case of a straight liquid equity, you can look at the price on the stock exchange. Credit Derivatives tend to be traded Over the Counter or OTC. This tends to make it difficult to get a true valuation so you have to use a formula and be conservative. How conservative depends on the market. At the time of writing nobody wants to buy any more risk so there is a problem.

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After the cowboys, try the indians...

hughk hughk writes  |  more than 8 years ago I have been spending the last year working with a very prominent development and services company, with which my client has the misfortune to be contractually connected.

These guys have screwed up so badly, that there more communications across ten yards than the 4300 miles to India. This was probably not helped by the presence of two billable 'overhead' persons for every doer.

Unfortunately, we can't really directly manage the developers as their is no direct governance. Any issues have to be escalated up to the holy trinity before it can come down on them.

However, the developers don't help either. Most are so heavily siloed that it is impossible to get things fixed unless the right person is in. Not very sustainable and in the end, a poor strategy because it increases time to enhance or repair.

Their greatest sin is poor quality. The developers claim they are being blamed for channged business requirements. However the business at no point "required" exceptions, but we get plenty of those for free. It is the repairing of them that costs.

The issues with the quality have led to extremely late delivery and a massive downturn with our relationship with the business. We have had to excise defect ridden functionality to the point where the app is barely usable.

This has gone so badly that I'm now in India talking to vendors. Could they screw up as badly? After dealing with the GM of systems development and support, well "things can only get better"!

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Another project....

hughk hughk writes  |  more than 9 years ago I was in a short term project last year based out of London, commuting Mondays and Fridays which was as bad as I feared. However, the income level more than compensated for the extra costs of travel and accomodation. The work was just as a straight BA/Tester and I was supposed to help test an upgrade. It was fairly uneventful, except that it meant that I could get a bit more experience in a paricular 3P financial package. After doing usability on an inhouse package, the 3P package seemed quite crude and even if not bug-ridden, it certainly was poorly engineered.

That project finished, so I was left at a loose end. I had interviewed for a couple of jobs in London again but the budget kept on appearing and disappearing like Alice's Cheshire Cat. There wasn't a lot happening in Frankfurt, so some job in London seemed inevitable.

Finally and after a second interview conducted by phone whilst I was away skiing and a pause of several weeks, they came back to me and started to make opening moves about the rate. I told the agent that I wouldn't compromise much as I had a friend working for the same bank on a similar project and I knew what his package was like.

Anyway, they finally gave me what I asked for but then I had to account for my last 5 years of work history and to account for gaps of more than a month (inside for drug trafficing in Thailand?). Projects have been short and I have worked in many places over the last five years. I even ended up chasing one reference from Uzbekistan. It wasn't easy, but now, maybe they have all the info and I can start.

The project will be interesting and essentially another hand-me-down from the War on Terror, from Bush and Blair. Essentially all financial insitutions are supposed to introduce a number of measures to reduce the ability of terrorists and drug barons to move money around so easily. This project is supposed to implement Know Your Client for a large and fairly international bank. This means ensuring that all new clients are correctly processed and their paperwork recorded in a massive document management system.

I suppose they are entitled to be a little careful, but the check took about a week and was a major PITA.

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Flying interviews....

hughk hughk writes  |  more than 9 years ago Well, I was invited back to London to visit the client. It was an early start at 5.30 and I was on the plane by 7 waiting for the 7:25 takeoff.

It didn't happen.

Because of winds, Heathrow was increasing the intervals between inbound flights. Ok, I wait, I had some slack built into the schedule. Oh what fun it is to sit for an hour on a plane that wasn't going anywhere.

Finally we took off at around 8:30 local time and we arrived somewhere in the vicinity of London then we started flying in circles. It seems that a plane was stuck on a runway so Heathrow was down to 50% capacity at its peaktime.

Another hour goes by and we land.

I then spend time trying to leave messages with the 'virtual' consultancy that I'm a little delayed, but should still get to their office, a room in a business centre shortly before the interview. They tried to call me back but somehow managed to ignore the message that I left giving the UK mobile number I was using and calling me on my German number which I had swapped out.

I arrived, had to wait for the guy who was going with me to the interview. No problem, we did arrive on time but the end-client was running rather late too and had just got back from a US trip and was clearly not quite with it yet (he hadn't even seen my profile). We had a good chat and things seemed to go ok, although not ringingly well but it became clear that the project would almost certainly overrun the six months discussed and probably run for a year or so. The project had elements in the UK but also it would mean frequent trips to the US. Think of the air-miles, but think of the dead-time whilst your distant forebearers are examined for suspicious Arabic sounding names in the immigration queue at JFK. Note, there are many ways of transliterating non-Latin symbols such as Arabic to Latin. The dept of homeland insecurity has problems unless you are a terrorist with a western name, in which case you will probably be invited to the Whitehouse.

Anyway, having just been reminded of the joys of a long distance commute, I wondered whether I really wanted to do this every week.

With just a few minutes debriefing in the taxi with the sales person responsible for the client, I then left for a quick bit of shopping and then went for a chat with another test consultancy with a bank as a client.

Goodness, these guys actually had a real office, a converted warehouse on the edge of the city. This did give a little more confidence so we chatted about a comparatively short project. This seemed more positive if only for the reason that it gave me the opportunity to decide not to stay in London if the commute was getting me down.

I eventually made my way back to Heathrow for my flight back. I was a bit edgy as I was there only about 40 minutes ahead of the flight (minimum) so I hustled through security (this time it detected my watch).

Why did I bother? It appears that Lufthansa's checkin system, the weight balance system and something else important had died because the mainframe had been taken down to have some new hardware added. It was brought back up, but the OS didn't see the hardware because some important patches hadn't been applied. Guess which airline I was due to fly back on?

I wandered terminal 2, waiting. Many airports are proud of their functional architecture where they look something like the Pompidou Centre. Departure gates not being considered functional are somewhat harder to locate. The sign-boards announced the original departure time, a "Delayed 1 hour" remark, but after an hour went by, the board wasn't updated (you would normally expect a gate at least thirty minutes before). Anyway, I finally located the correct gate to find that the flight had only just arrived at the new departure time, so there would be another half an hour while it was turned around.

Eventually, I reached Frankfurt about two hours later than planned and absolutely exhausted. I still managed to drop by on the leaving do for the agent who got me into my last two contracts. I think this is something like the third one that he has had in the last month, so I didn't hang around for more than an hour or so.

Luckily, I had a holiday planned for the next week where I could relax a little while wiating to see how things panned out.

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Ah, umemployed again...

hughk hughk writes  |  more than 9 years ago Well the last day of my contract came and things were very quiet. It is quite possible that the project as a whole will be effectively canned because of a manager. So, I could be the first of many to go.

Anyway, along came an interview, but in the UK and I had to get there the next day and pay part of the cost. You can fly anywhere with an open budget, but you try doing no-notice short-haul in Europe and it can get very complicated but a colleague tells me it is still possible to cross-book tickets. And it was.

It was a beautiful day in London which makes it seem somehow easier to return. On the other hand, one must be realistic and expect a large number of not so nice days (i.e., cold, wet and windy) if I take on the project. Money doesn't go far here either so yes, you are paid more but it goes so quickly compared with other places. The rate should just about cover a weekly journey home and leave me almost as much as I earned before so all is not lost.

The other problem is that with a long commute and living away, slowly I should consider upgrading my notebook PC which has about 30 secs of battery power (yes, replaceable) and a not very fast 500MHz processor which can't be upgraded. The new job does include US travel so perhaps I can do something about getting a machine there.

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Ooops, actually the project got canned!!!

hughk hughk writes  |  more than 9 years ago I noticed the last 100 or so tests that I had sent to a BA/team leader have sat in review for the last week. This guy is normally quick, does he know something we don't? Anyway a big meeting had been scheduled for today to find out.

I arrived today to find our offshore vendor, a big one based out of the Carribean parceling up their documentation into binders. Not a good sign.

With all the aplomb of a teenie-bopper singing "whoops, I did it again", the project was announced as suspended and the external vendor was disengaging. This isn't a new thing here, few major projects actually get seen through to completion. Perhaps the bank could look at their project methodology here?

The external vendor can't be completely blamed in this case, they did produce late, but the specification was woolly as hell and almost no documented requirements. Not good when you have developers at a centre in Manila, a long way away from the business knowledge.

The real problem is deeper. If your developers are more than 10 minutes away, you really, really do want to have the requirements and specifications cast in stone. On a large system, you really want to get the architecture delivered first and then build upon that. Ideally, get the architecture done inhouse and then just outsource smaller sections of code even to multiple vendors.

Maybe they will restart the project. Amongst other things, this handles client reporting for the banks - something which is extremely important and a legal requirement. Without the new system the bank, a major one, needs to resort to paper. Oh dear!

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QA isn't important, is it?

hughk hughk writes  |  more than 9 years ago Yes, our very own offshored/outsourced project is busy going through the motions of dying. It should be noted, that this is not an instantaneous change of state, rather something long, drawn-out and rather painful to watch.

So due to the extended delay before anything can be delivered, the entire external QA team is being 'iced', as there is nothing to test (I'm quoting management here). Actually there is quite a pile still from one of the bits being done onshore, but it is fairly obvious that although the offshore vendor has overrun by over 100%, they have had to cut us back to fund the overspend. After all, QA isn't important is it and they are now far too dependent on the offshore developer to change now.

Of course, the real worry is unless they can show something for all the money already spent (about $14m), the project will get canned. If they can show something (and there is no effective QA to declare it rubbish) then they may be able to fool someone into further funding.

Of course, this could be the strategy, deliver something that doesn't work, use the fact to beat the developer over the head and get the price cut and then fix everything during an extended beta.

Lets just hope that they can find and fix all the bugs. This system looks after serious money.

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Overdue dilligence in Outsourcing/Offshoring

hughk hughk writes  |  more than 9 years ago A concerned parent usually makes enquiries of any new baby-sitter to determine whether they are responsible enough to handle a job or whether they will end up ignoring the baby and enjoying the family alcohol supply with their boyfriend instead.

When you hand a project to another organisation, it is important to ensure that the company is appropriate for your project. That is, that it is big enough to handle the project and it has a track record.

One interesting factor is the experience. When a person has done something, they have physically participated at least. When a company has done something, then at best you can say someone who was an employee at the time did it. There may be little transfer of knowldege so the expertise is lost. Sometimes the staff turnover may be so high that the experience is actually lost during the project. Given the high ratio between the fees charged by some offshore companies and the employee compensation, staff loyalty becomes an issue.

Of course, it is good to know that you are dealing with a sound company. It is difficult enough in the west. Worldcom or Enron anybody? Remember that companies pay taxes based on their annual reports, and in some lesser developed countries or the former Soviet Union, those taxes may be very high so they may well be creative works of art compared with the reality.

In general, it is better to use your eyes and ears when investigating the suitability of an outsourcing company, particularly when it is offshore. Also remember, that when an outsourcing company pitches to you, they are unlikely to use just average staff and the staff you see are unlikely to ever work again on just implementing projects.

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New terminology....

hughk hughk writes  |  about 10 years ago We have the word Downsizing which means to get rid of all the people that do but leaving management who are now in a quandary because they don't have anyone working for them.

Nevermind, this leads us to the solution: The word Outsourcing now which means essentially sending work to be done elsewhere for the price of a cleaner here. Then we have the word Upskilling which means that our offshore result has actually provided us with cleaners and we now want programmers which will cost us more and take longer. Finally because the project has ran out of time and money, we have the word Descoping which means agreeing that "being taken to the cleaners" by the offshore company is now accepted with the realisation that the solution doesn't meet the original requirements.

Offshoring works, however only within certain parameters. On a recent project with which I have had the pleasure of being involved, the offshore resource being provided by one of the big consulting companies produced about 46% of what was expected and about 34% was tested according to their own standards. In common with many outsourcing projects, we have been told that the project will succeed no matter what. The business remains blissfully unaware of the problems and in the end will have no option but to accept what has been given to them. In the end, the quality issues will be addressed by Deskilling and Outsourcing of the entire test process.

Note that outsourcing can work, however, you must expect senior staff to spend a large amount of time supervising the projects and training the staff. Unfortunately, as the offshore staff become more skilled they want to improve their income standard so they move around. Expect at least a 50% staff turnover. Then there are communications issues. Even if the offshore staff are working on-site, straight-forward concepts may need considerable explanation. Pure coders are few and far between these days and any kind of analyst/programmer must have an overview of the process that is being implemented.

The last point is that your business processes become embedded in the code. If you are lucky, the code may match the documentation, but it only starts this way. After successfully outsourcing and offshoring your operation you may find that the only people who know your business processes aren't working for you but for someone else.

At this point it becomes advisable to close up shop and move offshore yourself.

When there is more process sitting outside the company, the business is likely to follow!

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What do you require?

hughk hughk writes  |  more than 10 years ago When you design a large system you take information about what the business wants and you convert them into something that a programmer, who may know little about the business can implement. As the audience for the specification document is technical, full of wonderful things like UML, we can't expect the business to understand it. This is why it is very useful to capture requirements in a form that the business can understand and sign-off.

Of course, the real issue is that when the business receives the software, they are reasonably certain that the system is attempting to implement what they wanted.

Pretty obvious? How come I'm on a massive project for a major German project with no formal requirements. It appears that the scope of the system was decided by SMEs (Subject Matter Experts) and the business analysts at meetings which were not formally minuted. How do we know if it will ever work?

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Dancing the Samba

hughk hughk writes  |  more than 10 years ago A long time ago, I had Samba working quite happily in a Windows NT 4.0 Domain. Since then, I had changed the domain server to Win 2K active directory and wanted to Samba my gateway system (192.168.0.1), which is running Linux. Samba 3.0 now has support for Windows Active Directory Services (ADS) and some (limited) documentation.

At least the gateway system is running Linux now. In a previous incarnation it was running 2K as a backup domain controller (with the same address) and it had since been reformatted and Linux installed.

That was the problem. The PDC thought that the gateway system was still running as a BDC but was playing stupid. Unfortunately, I couldn't use another IP address for the gateway system and lacked the patience to reinstall Windows 2K.

The usual Active Directory GUI didn't allow to wipe out my old BDC without consulting with the BDC (which only existed on a backup). After some Googling around and fighting with Microsoft's hopeless search facility, I finally found something called Ntdsutil.exe or something which allowed me to wipe out the BDC.

Still no luck, Samba just couldn't get hooked up with my PDC. I eventually found out that the PDC still thought that the gateway system was a Windows box. This needed some further puring of the PDC's DNS. Note that a Win2K Server PDC really wants to have its own DNS.

Yes, I got the old rubbish cleaned off the PDC and the systems started talking. However browing the Samba system from Windows resulted in the Windows desktop crashing.

Ho hum, all in an evening's work!

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Patently Absurd

hughk hughk writes  |  more than 10 years ago The UK, or at least England and Wales, has the longest continuous history of patents in the world, with the earliest being crown licensed monopolies in the 15th Century. The earliest was granted in 1449 by Henry VI for the supply of stained glass windows, which was a new technology then.

The link of patents to inventions didn't happen until James I, who then enacted a law containing the words:

"for the term of 14 years or under hereafter to be made of the sole working or making of any manner of new manufactures within this Realm to the true and first inventor"; such monopolies should not be "contrary to the law nor mischievous to the State by raising prices of commodities at home or hurt of trade".

However, the early patent system had many problems (including the need to get a separate Patent for Scotland). Trouble over Arkwright's loom and Watt's steam engine in the 18th Century established that an idea must be specified in a practical way and that improvements to a patented idea were themselves patentable.

I have no problem with the principle of patenting something physical because it is possible to place two inventions next to each other and compare them. However as we get more abstract then it becomes a lot more difficult. How do you test an algorithm for similarity? Well, the answer to that one is in court and there are plenty of lawyers who will argue the hind legs of a donkey at $300/hour. It becomes simply too expensive to defend the patent in court unless you happen to be a major company.

Another problem is that the 20 year patent term is inappropriately long in a rapidly growing field such as IT, so the released patent does not benefit the public good as was the intention. Indeed, a patent can be a major barrier to progress - think what would happen if Tim Berners-Lee of CERN patented the idea of a web browser?

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Lost in a maze of twisty little classes, mostly alike

hughk hughk writes  |  about 11 years ago I have been given the task of maintaining a package that is fairly important for my client over the next 6 months. They have known the package will be replaced for the last two years so it is being run in a low-maintenance mode.

The problem is that many of the developers/maintainers have now left and we are left with a mountain of C/C++ code and a few pages of documentation. This is not easy. Design reverse engineering tools are out of scope unless they are free so I just have to fight it.

Luckily, most of the time it works. However, someone always wants just one more little change.

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Sand, Equipment and Maintenance

hughk hughk writes  |  more than 11 years ago Some very intriguing snippets are slipping back from that little contretemps that is happening in the Middle East. It appears that the war in the middle east is proceesing somewhat slower than expected.

The military of the coalition has some excellent equipment, but it already appears to be needing some maintenance. Some of the captured soldiers were from a maintenance battallon.

One wonders how long equipment can last in these conditions before it requires overhaul, particularly with sand-storms as well.

The Iraqi equipment seems largely ex-Soviet. The Soviets designed stuff that can be used from Tundra to Desert, and almost everything imbetween. Someone once told me that it was reliably unreliable, but very quick and easy to maintain.

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Alphas and Unobtaniums

hughk hughk writes  |  more than 11 years ago One of the organisations that I have worked for and with is a major electronic financial products exchange. Their host systems have been sitting on Alphas running VMS and have been since they transitioned off the VAX. As load has increased, they have normally just bough new hardware with only relatively limited architecture changes. Software changes carried risk, hardware changes within a hardware platform carried a minimal risk - so they just bought the latest model.

Unfortunately the Alpha is dead. The last model is the Alpha EV78 and then OpenVMS will be running on the Itanium, at least that seems to be what HP, the owners of Alpha and partners with Intel for the Itanium are promising.

When Digital introduced the Alpha, it took several years before it was seen to be reliable enough for use as a cluster server. It took the exchange even longer before they converted their application. Not because the application was hard to port, but more because the app was pushing some bits of VMS very hard and it certainly could find the weaknesses very easily.

The first Itaniums are out, but the word is that they are slow. Speed was never an issue with Alpha, but these babies start out with problems. A bad sign. VMS doesn't run properly on Itanium yet (it is past first boot, but that is all so the rumour goes), so I guess the conversion to Itanium is at least 5 years ahead. The app is currently very dependent on VMS but can't be stretched across large clusters due to the interaction between the individual cluster nodes. Scalability becomes an issue.

What to do about performance then, no new Alphas and a useful Itanium is a way away? Time to bite the bullet and do a rewrite?

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