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I'm developing an RFC 2822 address parser (not a validator), and was wondering if anyone knew of a good list of test cases that exercises corner cases that might crop up? The specification of the address format is quite complex, and I'm not convinced I understand it fully enough to be certain of identifying all of the odd cases that could crop up.
For the sake of clarity, I'm talking about addresses as they might appear in header lines, so stuff like comments in odd places is the kind of issue I'm thinking about.
I found this during my quest for the same:
http://isemail.info/_system/is_email/test/?all
Hope this helps.
I had found a blog post over on the MSDN blogs that provides a few test cases specific to RFC2822. I'm not certain it is the definitive list of test cases, but it might be a good starting point.
Email Address test cases
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Ok, so you've got an idea for a potentially successful online start-up. You know that you'll never set the thing up yourself, you prefer the stability of your permanent job. Then you think, "Hey maybe my boss would be interested in backing this as an internal project. Obviously I'd want X% of the profits for coming up with the concept in the first place and I want to be able to retire when we get bought by BigCorp."
Can you follow any legal procedures to prevent anybody you tell about a business idea from exploiting it independently?
What kind of deal should you be looking at (e.g. profit share, shares etc)?
IANAL, but I've been around the block a few times.
First, find a competent attorney that specializes in startups and get some professional advice and follow it. Preventive lawyering is really a whole lot cheaper than waiting until it is too late.
Second, protect yourself and make sure you do everything in writing. If your employer doesn't bite and you decide to do it yourself then you'll be protected when you're successful and your company comes back later and tries to claim ownership over the idea. I've seen this happen more than once.
Third, try to get the people you pitch to to sign a non-disclosure. If they have half a brain they won't sign one, but it's an important sign of your intent. Without an NDA do your best to not pitch your idea to anyone who can take the idea and run with it based on your elevator pitch. That generally means really competent technical people, or an expert in the business area.
If you get to the point of having to worry about a deal go back to that competent attorney you retained.
To answer your first question: no. There's nothing you can do that will stop someone from exploiting an idea you have. Apart from patenting it. (Which you aren't really supoposed to be able to do unless you've already at least partly implemented it in the first place).
My advice would be: if you know someone you trust not to steal your idea, tell them. If not, don't.
Also, if you have an idea and you tell your boss, you're not really entitled to anything in terms of ownership of X% of profits. That's just supposed to be part of your job.
Sorry: this probably seems like a negative answer, but I'm trying to be realistic.
Ben
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I work as a PHP developer, and my boss is driving me crazy. He calls me every now and then, gives me tasks even when the previous tasks haven't been completed. Forbids me from meeting with clients and tells me incomplete specification verbally or over the phone, and expects to have working applications from the first deployment. Can any body suggest a way to curb this guys enthusiasm?
document what you are spending your time doing.
document requirements as they come in (through whatever channel)
provide both of these to your boss as frequently as necessary in order facilitate conversation about missing requirements or prioritization of your time
Start looking for another job and give him a pre-notice. This will curb his enthusiasm. Some people are to be avoided at all costs.
//Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." -- Albert Einstein
Talk to him about the communication problems. It's usually a two-way problem. If he's giving you incomplete specs, why aren't you asking for more complete ones?
If you just want to stick it to him, then find a better job. If you're committed to making it work, then put some serious thought into the root of the problems you're having, and get him on board with helping you solve them.
I'd suggest having some sort of task list somewhere so that when your boss adds something to this list, he can see what you are doing and have estimates for how long some things will take.
As for the requirements being incomplete, this is why some like Agile approaches where you would get your boss in to test something regularly to verify that it is acceptable before putting something into production.
As others have mentioned who can type faster than me, one thing you can do is to try setting up some type of project management/bug tracking system for him to use. I've used FogBugz with success which requires no installation and has a free plan for small teams. You can setup an email account that he can send requests to.
When proposing this to your boss, do it in a way that will show that your goal is to help keep track of your tasks and priorities. But also be prepared for additional work. If he is agreeable to it he may want to see frequent status reports and where you are spending all of your time.
If you can get more complete specifications this can help drastically. It'll help you understand the project better. It'll help you estimate time for completion. And my favorite -- it'll help prevent double-work. There's nothing worse than getting incomplete requirements, building something wrong, and then finding out that you need to redo it.
If you can I'd try to find a good way to suggest this to your boss without stepping on any toes. If he understands the benefits he may be more open to the idea of being more thorough with you. What it'll really do is make you more efficient at your job.
Oh, and you may want to take a look at my answer to this question relating to time estimation:
How am I supposed to know how many days something will take?
The other suggestions of keeping things in writing at least for yourself are valid. However, for the kind of boss you describe with which I have some familiarity, it may not work.
Some bosses just never learn or already know what they are doing is wrong and do it anyway because to them, saying "yes" to the client and getting a signoff on a bigger contract today is more important than programming methodology that could delay a payment for 3 weeks (testing? why do we need to test? you tested it, right? two weeks for function X?! all you have to do is add a button, right?).
To many bosses, programming is just one of the tools needed to run their business. To them, it's a business to make money and programming methodology/quality is secondary.
What you do to keep yourself sane and safe if you want to stay with this boss is at least keep written records of every request and when problems come up, remind him why they happened. If possible, ask that all specs be delivered at least by email instead of verbally.
You always have the choice of going somewhere else if things don't improve.
Good luck.
I have struggled with this same problem at a few jobs.
I've observed that there is a type of programmer who can survive in this environment: one who simply works on whatever the boss says is the priority of the moment, and doesn't worry about deadlines at all. Just keep putting things on the back burner, and resume working on them the next time the boss asks for it. Endure the occasional tirade from your boss when something he asked you to start 12 months ago isn't done yet, because you've been working on whatever he gives you.
If you aren't comfortable with that sort of existence (and I would not be), then the best strategy I can suggest is that you have an open conversation with your boss about it:
It's important to me to do a good job,
but I feel like the work requests are
coming in faster than I can complete
them. I know that priorities
inevitably shift, so I'd like some
help from you to understand when this
happens, and how to balance my time
among the tasks to best meet your
needs. Can we talk about how to stay
in sync about priorities?
If the tasks can't be prioritized,
then I need you to understand that I
can't be productive on so many tasks
at once. It's just not humanly
possible. Have you considered hiring
additional programmers so we can
balance the workload and get it all done
in a timely way?
If he tries to stall or contradict or tells you to "work smarter, not harder" then you can escalate:
Let me put it another way: if you continue to give me tasks at the rate you have been, but don't prioritize them clearly, then you are going to hire another programmer. Whether this hire is your second programmer, or else my replacement, is up to you.
Basically, communication is good. Start by being diplomatic and phrasing everything in terms of how you contribute to his success. But increase the degree of bluntness until it sinks in.
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Here's a scenario I'm sure you're all familiar with.
You have a fairly "hands off" customer, who really doesn't want to get too involved in the decision making despite your best efforts.
An experienced development team spend hours discussing the pros and cons of a particular approach to a problem and come up with an elegant solution which avoids the pitfalls of the more obvious approaches.
The customer casually mentions after a quick glance that they want it changed. They have no understanding of all the usability / consistency issues you were trying to avoid in your very carefully thought out approach.
Despite explanations, customer isn't interested, they just want it changed.
You sigh and do what they ask, knowing full well what will happen next...
3 weeks later, customer says it isn't working well this way, could you change it? You suggest again your original solution, and they seize on it with enthusiasm. They invariably seem to have had a form of selective amnesia and blocked out their role in messing this up in the first place.
I'm sure many of you have gone through this. The thing which gets me is always when we know the time and effort that reasonably bright and able people have put in to really understanding the problem and trying to come up with a good solution. The frustration comes in contrasting this with the knowledge that the customer's choice is made in 3 minutes in a casual glance (or worse, by their managers who often don't even know what the project is really about). The icing on the cake is that it's usually made very late in the day.
I know that the agile methodologies are designed to solve exactly this kind of problem, but it requires a level of customer buy in that certain types of customers (people spending other peoples money usually) are just not willing to give.
Anyone any clever insight into how you deal with this?
EDIT: Oops - by the way, I'm not talking about any current or recent customer in this. It's purely hypothetical...
Make your customer pay by the effort you are putting into designing and developing the solution to their problem.
The more you work, the more you get. The customer will have to pay for his mistakes.
Customer will eventually learn to appreciate your experience and insight in the programming field.
Niyaz is correct, unfortunately getting a customer buy-in is difficult until they have been burned like this once before.
Additionally describe to the customer the scenario above and state how much extra it would cost if you went three or four weeks down the line and had to rewrite it due to a change and then let them use the prototype. It may take a few days to put one together so they can see both options (theirs [the wrong way], and yours [the right way]). Remember they are paying you not only for your ability to program but also your experience and knowledge of the issues which crop up.
Whatever the decision the customer makes, ensure that you get it documented, update your risks register for the project with the risks that the chosen implementation will incurr and speak to the project manager (if its not you) about the mitigation plans for them.
I agree with Niyaz. However at the time the customer suggests the change you should work out what the impact of the change will be, and how likely that impact is to happen. Then ask whomever is responsible (it's not always that customer) for the deliverable if they approve the change.
Making the impact clear (more cost, lower reliability, longer delivery time etc) is very important to helping the customer to make a decision. It's very important to describe the impacts on the project or their business in a factual way, and assess how likely that impact is to occur. "Maybes" and "i feel" are very ignorable.
After that as long as the right people approve the change and as long as they pay for it.. well you did give them what they wanted :)
One thing we have done with some success in the past in these kinds of situations is to hand the issues over to the client.
"OK, you want to change it - this is
what will happen if you do that. These
are the issues involved. You have a
think about how you'd like it to work
and then get back to us".
This approach doesn't tend to yield good solutions (unsurprisingly) but does tend to let the client see that it's not a "gut feeling", wild stab in the dark kind of question.
And failing that, it usually makes them stop asking you to change it!
Usually a scenario like this is caused by 2 things. The ones that are supposed to give you the requirement specifications are either don't put their hearts into the project because they have no interest in it, or because they really have no idea what they want.
Agile programming is one of the best ways, but there are other ways to do this. Personally I usually use a classic waterfall method, so spiral and agile methods are out of the questions. But this doesn't mean that you can't use prototypes.
As a matter of fact, using a prototype would probably be the most helpful tool to use. Think about the iceberg effect. The secret is that People Who Aren't Programmers Do Not Understand This. http://img134.imageshack.us/my.php?image=icebergbelowwater.jpg
"You know how an iceberg is 90% underwater? Well, most software is like that too -- there's a pretty user interface that takes about 10% of the work, and then 90% of the programming work is under the covers...." - Joel Spolsky
Generating the prototype takes time and effort but it is the most effective way to gather requirements. What my project team did was, the UI designer was the one that made the prototypes. If you give the users a prototype (at least a working interface of what the application is going to look and feel like) then you will get lots of criticism which can lead to desires and requirements. It can look like comments on YouTube but it's a start.
Second issue:
The customer casually mentions after a quick glance that they want it changed. They have no understanding of all the usability / consistency issues you were trying to avoid in your very carefully thought out approach.
Generate another prototype. The key here are results that the users would like to see instead of advice that they have to listen to.
But if all else fails you can always list the pros and cons of why you implemented the solution, whether or not the particular solution they like is not the one you insisted on. Make that part of the documentation as readable as possible. For example:
Problem:
The park is where all the good looking women jog to stay in shape. Johnny Bravo loves enjoying "mother nature's beauty", so he's lookin to blend in... you know... lookin all buff and do a little jogging while chasing tail.
Alternative Solutions:
1) Put on black suede shoes to look as stylish as you can.
2) Put on a pair of Nike's. Essential shoes for running. Try the latest styles.
Implemented Solution:
Black suede shoes were top choice because... well because hot mommies dig black suede shoes.
Or else, if they won't pay for the effort, just avoid putting that much resources into the solution of the problem, and just give them exactly what they've asked for and then think about it after the three weeks have passed.
Somewhat frustrating, yes, but that's the way it'll always be with that kind of customers. At least you won't be losing money.
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Are there any methods/systems that you have in place to incentivize your development team members to write "good" code and add comments to their code? I recognize that "good" is a subjective term and it relates to an earlier question about measuring the maintainability of code as one measurement of good code.
This is tough as incentive pay is considered harmful. My best suggestion would be to pick several goals that all have to be met simultaneously, rather than one that can be exploited.
While most people respond that code reviews are a good way to ensure high quality code, and rightfully so, they don't seem to me to be a direct incentive to getting there. However, coming up with a positive incentive for good code is difficult because the concept of good code has large areas that fall in the realm of opinion and almost any system can be gamed.
At all the jobs I have had, the good developers were intrinsically motivated to write good code. Chicken and egg, feedback, catch 22, call it what you will, the best way to get good code is to hire motivated developers. Creating an environment where good developers want to work is probably the best incentive I can think of. I'm not sure which is harder, creating the environment or finding the developers. Neither is easy, but both are worth it in the long term.
I have found that one part of creating an environment where good developers want to work includes ensuring situations where developers talk about code. I don't know a skilled programmer that doesn't appreciate a good critique of his code. This helps the people that like to be the best get better. As a smaller sub-part of this endeavor, and thus an indirect incentive to create good code, I think code reviews work wonderfully. And yes, your code quality should gain some direct benefit as well.
Another technique co-workers and I have used to communicate good coding habits is a group review in code. It was less formal and allowed people to show off new techniques, tools, features. Critiques were made, kudos were given publicly, and most developers didn't seem to mind speaking in front of a small developer group where they knew everyone. If management cannot see the benefit in this, spring for sammiches and call it a brown bag. Devs will like free food too.
We also made an effort to get people to go to code events. Granted, depending on how familiar you all are with the topic, you might not learn too much, but it keeps people thinking about code for a while and gets people talking in an even more relaxed environment. Most devs will also show up if you offer to pick up a round or two of drinks afterwards.
Wait a second, I noticed another theme. Free food! Seriously though, the point is to create an environment where people that already write good code and those that are eager to learn want to work.
Code reviews, done well, can make a huge difference. No one wants to be the guy presenting code that causes everyone's eyes to bleed.
Unfortunately, reviews don't always scale well either up (too many cooks and so on) or down (we're way too busy coding to review code). Thankfully, there are some tips on Stack Overflow.
I think formal code reviews fill this purpose. I'm a little more careful not to commit crappy looking code knowing that at least two other developers on my team are going to review it.
Make criteria public and do not connect incentives with any sort of automation. Publicize examples of what you are looking for. Be nice and encourage people to publicize their own bad examples (and how they corrected them).
Part of the culture of the team is what "good code" is; it's subjective to many people, but a functioning team should have a clear answer that everyone on the team agrees upon. Anyone who doesn't agree will bring the team down.
I don't think money is a good idea. The reason being is that it is an extrinsic motivator. People will begin to follow the rules, because there is a financial incentive to do so, and this doesn't always work. Studies have shown that as people age financial incentives are less of a motivator. That being said, the quality of work in this situation will only be equal to the level you set to receive the reward. It's a short term win nothing more.
The real way to incent people to do the right thing is to convince them their work will become more rewarding. They'll be better at what they do and how efficient they are. The only real way to incentivize people is to get them to want to do it.
This is advice aimed at you, not your boss.
Always remind yourself of the fact that if you go that extra mile and write as good code as you can now, that'll pay off later when you don't have refactor your stuff for a week.
I think the best incentive for writing good code is by writing good code together. The more people write code in the same areas of the project, the more likely it will be that code conventions, exception handling, commenting, indenting and general thought process will be closer to each other.
Not all code is going to be uniform, but upkeep usually gets easier when people have coded a lot of work together since you can pick up on styles and come up with best practice as a team.
You get rid of the ones that don't write good code.
I'm completely serious.
I agree with Bill The Lizard. But I wanted to add onto what Bill had to say...
Something that can be done (assuming resources are available) is to get some of the other developers (maybe 1 who knows something about your work, 1 who knows your work intimately, and maybe 1 who knows very little about it) together and you walk them through your code. You can use a projector and sit them down in a room and you can drive through all of your changes. This way, you have a mixed crowd that can provide input, ask questions, and above all make you a better developer.
There is no need to have only negative feedback; however, it will happen at times. It is important to take negative as constructive, and perhaps try to couch your feedback in a constructive way when giving feedback.
The idea here is that, if you have comment blocks for your functions, or a comment block that explains some tricky math operations, or a simple commented line that explains why you are required to change the date format depending on the language selected...then you will not be required to instruct the group line by line what your code is doing. This is a way to annotate changes you have made and it allows for the other developers to keep thinking about the fuzzy logic you had in your previous function because they can read your comments and see what you did else-where.
This is all coming from a real life experience and we continue to use this approach at my job.
Hope this helps, good question!
Hm.
Maybe the development team should do code-reviews of each other codes. That could motivate them to write better, commented code.
Code quality may be like pornography - as the famous quote from the Justice Potter Stewart goes, "I know it when I see it"
So one way is to ask others about the code quality. Some ways of doing that are...
Code reviews by their peers (and reviews of others code by them), with ease of comprehension being one of the criteria in the review checklist (personally, I don't think that necessarily means comments; sometimes code can be perfectly clear without them)
Request that issues caused by code quality are raised at retrospectives (you do hold retrospectives, right?)
Track how often changes to their code works first time, or whether it takes several attempts?
Ask for peer reviews at the annuak (or whatever) review time, and include a question about how easy it is to work with the reviewee's code as one of the questions.
Be very careful with incentivizing: "What gets measured gets done". If you reward lines of code, you get bloated code. If you reward commenting, you get unnecessary comments. If you reward lack of bugs found in the code, your developers will do their own QA work which should be done by lower-paid QA specialists. Instead of incentivizing parts of the process, give bonuses for the whole team's success, or the whole company's.
IMO, a good code review process is the best way to ensure high code quality. Pair programming can work too, depending on the team, as a way of spreading good practices.
The last person who broke the build or shipped code that caused a technical support call has to make the tea until somebody else does it next. The trouble is this person probably won't give the tea the attention it requires to make a real good cuppa.
I usually don't offer my team monetary awards, since they don't do much and we really can't afford them, but I usually sit down with each team member and go over the code with them individually, pointing out what works ("good" code) and what does not ("bad" code). This seems to work very well, since I don't get nearly as much junk code as I did before we started this process.