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So, I've got an idea for a website. I can start off using any platform and frameworks I want, but there are almost too many options.
OS Platform:
Windows, *nix
Web Framework:
Rails, ASP.NET, ASP.NET MVC, Django, Zend, Cake, others
Hosting:
EC2, Dedicated Server, Shared Hosting, VPS, App Engine, Azure, others
Persistence:
S3, MySql, PostreSql, Sql Server, SimpleDB, CouchDB, others
How do you avoid decision paralysis and get started?
Firstly, your familiarity with a framework's language should dictate which framework you choose. Don't add the burden of learning another language on top of learning a framework.
Next, have a look at the remaining frameworks. Do they have good documentation? What about the community. (A good community can go a long way to making up any shortcomings of a given technology.) Does the framework solve the problems that you need solved?
Finally, just dive in and try something! Pick the one that makes the most sense to you and start writing code. Don't do too much hand-wringing over your decision. If it becomes obvious that you made the wrong choice, it should be obvious quite early. Learn from what you've accomplished so far and consider restarting with a different technology. (Just don't get several weeks down the road before you make this decision!)
I'm sure you don't like all of those technologies equally. Pick a framework that you like and get to work.
It depends on what your app is going to be doing. A handful of the technologies you listed are direct competitors (like Django vs. Rails), but some are completely different ways to do things (like MySQL vs. S3).
Questions to answer before you begin:
Will the app need to be horizontally partitioned in the near term? If so, using EC2, Google App Engine or Azure would be a good option.
Will your app fit into the constraints of Google App Engine? If so, it requires a lot less hassle on your part than running on bare metal (whether real or virtual).
What's your preferred web framework? If you want an MS framework, you'll need to run on a host that supports that.
What will your persistence and data access patterns look like? This will determine whether to use a database or something more exotic.
If you are running on EC2, the other AWS services are more appealing. Similarly, if you are using GAE, you have only one option for persistence. If you are using Rails, may as well start with MySQL.
In answer to your question of how to reduce the number of options, the answer is to realize that many of the options are related, so you don't have as many choices to make as it first appears.
Some advice that was once given to me is, pick what your friends (or colleagues) are using. Having people around you that you can share ideas and the learning experience with is invaluable.
If you want to learn something new: I'd just go with your gut and get started. If it sucks then switch to something more familiar.
If you don't have much time: Go with what you know and forget about the other options. Just start coding.
Optimize for happiness. Pick the one that you like the most. Or the one that intrigues you the most.
I've worked in Microsoft shops, in Ruby on Rails, and in homegrown shops having Apache, Jetty, even Mason.
All frameworks have their warts, their idiosyncracies that will keep you up until 3 AM, and their "tribal knowledge" vagaries that will be completely unexportable to other frameworks. (The last point is sometimes by design, the whole "platform entrenchment" business strategy)
Listen to what the supporters of the frameworks say about the problems with the other frameworks (Google: X framework vs Y framework). Pick the framework that has the loudest supporters. If they are equally loud, make the decision with a dice roll.
With me it's simple.
I only know MS stack and see no point in "checking out" all of those you mentioned.
No, actually I once tried to use JSF before excluding it from my list permanently.
Use what you are experienced in and where you can be more productive. The objective is to get your site up and running. Go for it.
One of the biggest factors in determining which platform/framework to use is your budget. You have to factor in the cost of licensing, software required to develop/maintain your website and other miscellaneous costs.
I suggest you begin with a scorecard of your own construction. Perhaps you can find different ones on the web, but if you do, modify them to meet YOUR needs. There should be a scorecard for each level in the stack (as you've described). Each scorecard should share some aspects to grade with other scorecards but each will also have their unique aspects.
Once constructed, weight each aspect graded according to your needs.
Once you've chosen the weights, pick the scales for grades.
At this point promise yourself you wont mess with the weights or the scale and then start collecting data on your options for each level in the stack.
You may also want to put a time limit on the collection period.
Make your decision based on the outcome of the scorecard.
The beauty of this approach is that the effort is made in constructing the scorecard, not in circular arguments of options. The effort in making the scorecard is vendor agnostic and focuses on the desired result, not the options. Thus you can avoid paralysis.
One more thing, my best scorecards have included sections addressing the availability of resources and other human related things. Don't make the mistake of just looking at the technology.
good luck.
Go for personal preferences.
One decision at a time:
Firts I would begin with type of language:
Script: PHP, Python,
Serious: Java, .Net
The language will restrict your OS, plattform and will give you hints for the dataabse decission. The database load is also important. And, Do you want logic in the DDBB? how much data?
Last advice. Try combinations well tested. LAMP, WAMP, Windows with SQL Server and .NET.
Evaluate each platform and technology for quality of tools for your needs. For example, if you are cost sensitive, you would value free operating systems and tools higher than costly ones. If you need performance, you would value tools which provide high performance higher than ones that don't.
It entirely depends on your situation. I spent several months evaluating stuff for a new commercial web site last year, and it was very easy to feel paralized. In the end it was talking to several people who'd done similar things, and of course reading a lot of stuff online and from Amazon. I chose Java, since our team had a lot of experience in it, and it has good performance and extensive supporting technologies. Oracle is our database but we used a persistence manager to make it easy to change later on. We used a half-dozen very good libraries to eliminate much of the boring and repetitive coding (Restlet, iBatis, Freemarker, XStream, jQuery, SLF4J). We used Glassfish as our web server.
Yours sounds like a small project with only you to work on it. In that case, pick a complete framework instead of a smorgasbord like we did. Pick something fun to work with, and something with good "return on resume". Look very hard at Ruby on Rails, Django (kind of a Python on Rails), and Groovy on Grails (a Rails-wannabe for the Java world). In your shoes I'd pick Ruby on Rails because there's a large and growing community and a good number of books and tutorials. Plus, Ruby looks like a worthwhile language to learn. For your database, just pick one. These frameworks make it easy to change your mind later. Pick MySQL unless you have another you like better.
And as other posters said, just do it! ;-)
Like others said, pick something you and your employees are familiar with. I highly doubt you are close to being industry ready with all those techs.
OS Platform: Windows, *nix
Shouldn't matter except for Windows licensing costs, and that is probably the least of your expenses.
Web Framework: Rails, ASP.NET, ASP.NET MVC, Django, Zend, Cake, others
Dependent on your favorite language
Hosting: EC2, Dedicated Server, Shared Hosting, VPS, App Engine, Azure, others
You should design your product to be movable, so you can scale among these. If you know for sure you are going big, then just start off with EC2. App Engine is extremely limiting, ex. they don't let you form outbound connections.
Persistence: S3, MySql, PostreSql, Sql Server, SimpleDB, CouchDB, others
You need to do the research yourself whether or not your product requires an RDBMS or a simple key/value store, and what features each of these have.
Just go for it! Your platform choice really is not all that important as long as you make a reasonable choice (Ruby + Rails, Python + Django, PHP + Cake/CodeIgniter). Any of these can be used to build successful sites. If your site really takes off, you'll be able to scale it fine.
Related
I'm one of those classic native programmers that has spent most of his past with .exe's and .jar's. As of the past year I've thrown my self into the world of web frameworks and technologies that seize to impress me. As of the past 1½ month I have fallen In love with Go because of it's strictness, and also how 'stand-alone' it seems to be. So now to the real question...
Go app engine application, why do we need this?
What is the difference and reasoning to choose a wrapped application (framework)?
I assume its purpose is to load some of the communication off the application to the wrapper, but sadly I can't seem to figure out (through documentation and discussion) what the specific purpose behind this modulation is.
Best regards and cyber high fives in your direction!
These really are two different questions.
1. Why GAE?
It's up to you. GAE provides cloud-based hosting that you pay rental to use. It's a bit similar to Amazon Web Services. Your Go app would be uploaded to GAE, where it provides your web service and your users can do lots of wonderful things. Meanwhile you never need to know which actual server is doing the serving at any given time - the app can migrate across their servers dynamically. GAE provides a high uptime and a low effort for you in keeping the server secure, backed up etc. It will also be elastic to cope with surges in load.
You may instead prefer to rent a private server (e.g. at Rackspace) or just a virtual machine. You'd perferably need to be a Linux expert (get lots of help at Serverfault) and you'll have to do the backup, firewall etc all yourself. It may cost (much) less. Or more.
2. Choosing a framework?
The net/http API allows you to write HTTP server code to do pretty well anything you want. But you have to do quite a lot of hard work. At the opposite extreme, frameworks like Revel make rapid server development possible, as long as it does the things you want of it. If you stray into functionality beyond what it offers, you might have to do quite a lot of digging to find out how to extend the framework.
Other interesting toolkits include Gorilla, Gocraft Web and Goji. In terms of complexity, these sit about halfway between Revel and basic net/http.
To answer your second question, here are some pros and cons of using a framework (e.g., revel) vs. something simpler like a toolkit (e.g., gorilla)
In general, the pros of using a framework are:
it provides a lot of sub-packages to handle important web-related sub-tasks like templating, generating data in specified formats like json or xml, query escaping, etc.
it handles boilerplate http handling
it (hopefully) enforces best practices like escaping strings
it helps you manage complexity by enforcing a consistent design pattern in the way you handle requests
Cons of using a framework:
frameworks tend to be "opinionated," meaning you have to buy into their general philosophy and understand their core concepts before you can make use of them; for a lot of frameworks this can be quite a bit of mental overhead
extra layer of abstraction, meaning you're another step removed from what's really going on, and there will be more stuff to understand and debug if something goes wrong
it can be brittle and hard to do something that isn't a standard use case in the framework
future maintainability: most frameworks don't tend to have a super long lifespan. Django and Rails have been around for a long time, but there's a massive graveyard of frameworks that came before them. Hindsight is 20/20, but it's hard to pick the right horse from the outset.
Recommendation
It's hard to make the call upfront. So much depends on the specifics of your problem, but I'd say in the case of Go, opt for the simpler option. Much of the value-add of frameworks in other languages is the fact that they contain useful sub-packages that handle important tasks, but Go already contains a lot of these in its standard library (e.g., encoding/json, net/http, net/url, text/template). I've built a fairly sophisticated web app using just the Gorilla toolkit and the go standard library, and it's been amazingly good, and the best part is, it's incredibly easy to understand what the code does and I can explain it to someone else without requiring them to first read through the massive About page of some third party framework.
If you want to get a sense of how other people use Gorilla, you might try looking at real-world usage examples. Compare that to how people use more sophisticated frameworks and pick whichever you like better.
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I am taking over a lot of the ColdFusion stuff that is lingering at our shop and they are insistent it stay on ColdFusion and that new projects in this area MUST be done in CF - basically this part is non-negotiable. I am not very experienced in CF (haven't touched it since 2003) so most of my development has been in .Net, MVC, C#, Linq-to-SQL in the past 4-5 years.
I was doing some looking around for a MVC framework that I could relate my Asp.Net MVC experience to and hopefully an integrated ORM (I am stuck using CF 8 at least for a while). I have found a few like Model-and-glue, Mach II and Coldbox etc. but I don't really know where to start and wanted to get some opinions on the advantages, disadvantages, etc. of each of them from people who use them.
I know that I will need to do an extensive brushing-up (pretty much re-learning) of CFML, so I don't need to be told that - I am looking into the future here.
Could you please share any information you have on CF MVC Frameworks to help me choose which one will be best for me? Thank you.
Seeing you are NEW to ColdFusion what I would do is pick ONE FRAMEWORK and stick to it. At first it will be hard you will have problems and you will be tempted to drop the Framework you have chosen but don't do it. After you have mastered one framework then you can learn the others.
CF Wheels
ColdBox * * * (Nice Documentation)
FarCry
Framework/1 * * (simple LIGHT framework)
FuseBox
ModelGlue
Mach-II
Most of these you can add
ColdSpring
Reactor
Transfer
An introduction to ColdFusion frameworks at Adobe.com
Most important is to remember we all have our opinions but there is NO real proof what is best. You can even NOT use a actual framework and just code carefully in MVC.
The stuff you are currently maintaining
I would pick ColdBox, ModelGlue or Framework/1.
ColdBox provides a little Code Generation and Framework/1 is very light so less to learn.
I've been using CFWheels for a couple of years and I've not found a better framework. It's inspired by Ruby on Rails and is very easy to learn with great docs and a very active community.
www.cfwheels.org
I teach a course in ColdFusion and use Sean Corfield's Framework/1 in the classroom. It's lightweight and has a very gentle learning curve, which makes it especially good for transitioning existing codebases. But at the same time, it's easy for a team of developers to work with and can scale to large apps. It's the framework that feels least like a framework and most like natural code, to me anyway.
http://github.com/seancorfield/fw1/
I wanted to give a +1 for cfwheels.
Since 2003, I've used Mach II, ColdBox, Fusebox, and Model-Glue for various projects. All had their pros and cons (Fusebox is the only one I'd avoid now) but, with a recent project, I decided to try CFWheels.
Using Wheels has been a blast. I've had a great time developing a site for some friends in my small town who own and operate an Ice Climbing and Guiding site ([www.ourayclimbing.com]). Nice SES URLs, runs great on Adobe CF and Railo, the admin was insanely easy to get going with the Scaffolding plugin, convention over configuration (which I love :)), etc.
In any case, if you stick with the major players (ColdBox, CFWheels, Mach II or Model-Glue), I think you'll be pleasantly surprised at what CF can offer you.
It has to be coldbox really.
It has excellent documentation on the site, and also has a book which has been brilliantly written to cover many aspects about object orientated programming, amongst other topics. Honestly, really impressed by the book, more than I was expecting.
What I like about the framework is that it uses coldfusion code in its handlers, when I picked it up I think the other frameworks where using xml...not sure if this has changed.
The framework is easy to pick up if you are knowledgeable on CFCs, and has several useful features for building sites. PLugins, Debug toolbar, URL rooting for "pretty URLS"..
I cant speak highly enough of the framework..
Theres also a really helpful community here who respond to all my questions really promptly.
I'd suggest checking out Mach-II. It's used on numerous extremely high-profile, high-traffic sites and has been for years. This blog post is a bit old at this point but still has some great info in it in terms of Mach-II in general as well as who uses Mach-II.
It's under very active development (don't let the lower version numbers compared with other frameworks fool you) with version 1.9 just around the corner and big plans for 2.0.
Big features of Mach-II include sophisticated caching and logging functionality, a very nice dashboard for helping with development and monitoring of your applications, a rich form tag library complete with data binding, and tons more.
I'd go with either CFWheels or FW/1. Both are very easy to use for those new to CF frameworks (I still count myself in that group) and don't have nearly as steep a learning curve as some others. Coldbox looks amazingly powerful, but I had a hard time getting my head around it.
You might also like my SOS and COOP frameworks. We are in the process of creating better public docs. It will likely be more like the code you are used to than other options.
You could also look at ColdBox. http://www.coldbox.org/
Loads of documentation and loads of features.
There's also Farcry Core Framework http://www.farcrycore.org/
It has to be said that you'll need to make your own mind up which framework you like best or whether to build one of your own. It really depends on what you want out of the framework.
In terms of ORM for ColdFusion 8 you have Transfer ORM (http://www.transfer-orm.com) and Reactor (http://www.reactorframework.org/)
Though, given that ColdFusion is java application on top of a java server, there is no reason why you couldn't go ahead and use Hibernate (http://www.hibernate.org/) ColdFusion 9 does make using hibernate much easier, but you're stuck on 8 for the moment.
Everything is negotiable. Rewriting the CF apps in Rails 3 would be the strongest approach.
Languages and frameworks built on principles - Ruby/Rails 3 (and other Ruby frameworks), Python/Django 1.2 (and other Python frameworks), ASP.NET MVC 2 - are generally speaking the best thing to use.
ColdFusion and ColdFusion frameworks do not compare because ColdFusion as a language and as a library is hacked together at random and the ColdFusion frameworks (ColdBox, FW/1, Model-Glue, CFWheels, Mach II) can only do so much to smooth that over. For example: CF scopes, lack of closures, lack of loadable classes/components (you can instantiate a component, but not load the component as such), awkward arguments handling, mappings, lack of real applications, lack of delegates and closures, and convenient but non-rigorous approaches to most aspects of the language and library. In comparison, the other languages listed offer rigor plus sugar atop the rigor.
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Hey all. I would like to get some insight on a question that I have been trying to find some information about. If you are the solo developer that is building a project from ground up, how do you manage the project? In the past, I have worked on a few personal projects that have grown into fairly large projects. In almost all of those projects, I have tried to wear the hats of all the roles that would normally be in place during a normal software development project (i.e. Product Owner, developer, architect, tester, etc.). It seems that when I leave the project for some time and come back, it is extremely hard to get back into the rhythm of what I was doing. So with that, I have some questions:
If I know the requirements (at this
current time), do I record them
anyways? If so, how do I go about
doing this, and how do I manage these
requirements? Product backlog,
features list, etc?
If this is the case, are full blown product backlogs or use cases a little overkill?
How does one efficiently appropriate
his/her time to each respective role?
What would be a normal flow of events
that one would follow? Start coding
immediately, write down user
stories/use cases, then go into
OOA/D?
What diagramming/modeling would be sufficient for this level? Domain model, class diagram, etc?
Basically, I was curious how everyone out there in the SO community would go about developing a project from inception to deployment when you are the lone, solo developer. What steps, documentation, and other project related activities are needed to help bring this project from an impractical, hobby project to something more professional? Any help, references, or suggestions would be greatly appreciated. Thanks in advance.
The most difficult part, I have found, about developing solo is that it's just tough to keep yourself driving forward. Even if you're doing this to make a living (AKA, running your own software business), unless you have pressing needs (AKA, you're going to starve if you don't make money) it can be difficult to sit down and just code.
From your perspective, I would recommend following good software practices where it makes sense to. For example, if I were a solo software developer, I would have no reason to create a collaborative development environment. All I really need is an SVN server, my IDE, and a place to record documentation (might setup a wiki or a website or something). I would personally create a realistic schedule to follow and would work on sticking to that.
As for level of effort of documentation, that really depends on you and the product you are developing. For example, I would definitely recommend recording your requirements. Unless your product is trivial, there is no way you'll remember them all and why you wanted certain ones over others. Managing a full backlog, however, can be a job in and of itself. In the solo programmer case this may not make sense.
Basically, the point I'm trying to get across (and should be followed with every project - not just in this case) is have just enough management that makes sense. The rest should be focused on the work and the development of the product.
Something else you may want to look into is reading this - Agile Programming Works for the Solo Developer. There are other, similar, articles out there. Might give you some good thoughts.
If I know the requirements (at this
current time), do I record them
anyways? If so, how do I go about
doing this, and how do I manage these
requirements? Product backlog,
features list, etc?
I have two lists of features:
A high-level view which states the scope of the finished product
A list of the features which I'm implementing in this iteration
Because I don't need to communicate it to other people (yet) I tend to write down the things that I don't know about the project (if I already know it there's no need to write it down): it's when it gets too complicated, or when there are details which I haven't defined but need to define, that I start to define them in writing.
I did however try to investigate/make a business-case for the project before starting coding.
How does one efficiently appropriate
his/her time to each respective role?
I did non-programmer, product-owner thinking at times when I had to be away from the computer anyway.
Apart from that, my cycle is:
Implement more functionality
Integration-test it
[repeat as above]
Every 3 to 6 months I compare the new-functionality-accomplished against my estimated schedule, and then recalibrate: i.e., make a new list of the highest-priority features to implement in the next few months.
What would be a normal flow of events
that one would follow? Start coding
immediately, write down user
stories/use cases, then go into OOA/D?
I started with working part-time or in my spare time, to make sure that I had:
Understood the required functionality
Made significant architectural decisions
Written any throw-away prototypes as necessary to learn new technology
After that I was ready to start developing full-time.
What diagramming/modeling would be sufficient for this level? Domain model, class diagram, etc?
I'm not using diagrams at all (except for sketches of the UI). By structuring the code, and refactoring, I'm able to know/remember/rediscover/decide which software components implement what functionality.
It seems that when I leave the project
for some time and come back, it is
extremely hard to get back into the
rhythm of what I was doing.
You need to comment your code more. If you leave the code, come back in two weeks, and can't remember how the code works, you need more comments.
If I know the requirements (at this
current time), do I record them
anyways?
Yes, for the same reasons stated above.
how do I manage these requirements?
A feature list is OK, provided you have enough detail in each feature to jog your memory.
How does one efficiently appropriate
his/her time to each respective role?
Break down each feature into smaller and smaller tasks, until you feel like you can do each task in a half day or less.
What would be a normal flow of events
that one would follow?
That depends on your development style. In general I would follow a clear but simple architecture, avail yourself of software patterns where practical, and provide adequate unit tests for your code as you go.
What diagramming/modeling would be
sufficient for this level?
Sufficient diagramming/modeling to make the project clear in your head.
What steps, documentation, and other
project related activities are needed
to help bring this project from an
impractical, hobby project to
something more professional?
Other than what I have already mentioned, make sure you have a good source control system and daily backups in place.
Good luck!
If you believe there is a chance that you're going to work on the project for some amount of time, leave it, and then come back to it at a later date...your best bet is to treat the documentation for the project the same as if you were working with a large team.
That means documenting requirements (even if they're from yourself), writing use cases (if functionality is going to be complex, otherwise some other form of documentation could suffice), and some level of UML diagraming (or other domain specific diagram) which could include activity diagrams/class diagrams/etc.
That way, when you leave the project for some amount of time, you can come back to a well documented idea and pick up where you left off.
As a side note, I try to do the majority of those things no matter what...that way if I ever find somebody interested in working on the project with me, I can get them up to speed quickly and get them on board with my ideas.
This is how I work, YMMV:
Keep a spreadsheet for high level of everything - list of your projects, and some top-level items/todos/reminders
Create a "project" folder for each product/project you have or work on, and create a strucuture to contain documentation and code for the project.
Keep a top-level "catch-all" document for each project, in the root of this folder. Keep you ideas, research, notes etc in this doc.
Then if you want to get organized, keep an MS project file (or similar) and plot out timelines for the various steps in each project. This is good for tracking progress on each project and make sure you arent forgetting anything. Basically keeps you honest with yourself.
And if you need to track progress on project work you are doing for clients, I understand Basecamp is a good solution for this. I am currently evaluating it for my own company. See www.basecamphq.com
Even as a solo developer, you should document at least the overall features of your project, and then the requirements for the particular feature you are working to complete, and then maybe produce a short pseudo-code for the functionality you're currently working on.
That way, if you do end up breaking away from that project, you can get back to it and see where you're up to easily enough. It's also pointless getting too far ahead of yourself with details for this same reason.
It's also a neat motivational tool for a solo developer - getting through and ticking things off is a way to show progress - something that you can start to feel you're not making when you're chewing through a couple of thousand lines of code and it seems like you're still miles away from actually having 'module x' completed.
Lastly - with regards to code comments - I at least try and fill out what actions/behaviour a new function should have in an outline, and then write the code in between the comments. Also, it is useful having plain English explanations of why you're branching in an if/else to support the logic in the condition...
I belive that better results in solo development one can achive with appropriate tools support and tasks that compensate lack of ohers people and help to organize working time. Any tool that generate metada with minimal create time cost describing your software is helpful.
VCS and tools for tracking user actity/code changes history - very important is to add good commit messages
mind-mapping tools for storing project related data (e.g. XMind), blacboard is useful too :)
time tracking tools (e.g. Toggl.com)
write a lot of acceptance test and use acceptance testing frameworks
Of course these clues also fits in non solo development :)
As a lone developer, I've found that your time is very expensive. This means that you have to balance sustainability and momentum - even though you are just one guy, you have to do things so that the you six months from now can go back and look at old stuff without wasting time, without spending so much time maintaining the systems that it compromises your flow.
Your question suggests that you are thinking in terms of fairly heavyweight tools and processes, but the 80/20 rule applies - for example, you can nail documentation well enough by TDD, using the doc tools of your platform to generate API docs, plus a Wiki for specs, lists, etc.
In that vein, I would suggest that you choose your platform carefully. The question about modelling suggests that you are using a platform that produce a lot of code and artifacts, but you may be able to get most of the functionality for much less management overhead elsewhere. Today I'm working on a .NET Web app that I wrote "the right way", but now realize that I could have delivered the same functionality much more efficiently in this case by using PHP with a PHP MVC framework to keep a clean structure.
Specific tools that I'd recommend:
A distributed version control system (much less overhead than centralized)
The most lightweight platform that you can use that has good tooling
A Wiki to easily capture and maintain small and large bits of content
Whatever testing framework that you can use, right from the start of the project
A lightweight TODO list system that you can access from anywhere
I used to work on a very small team (one dba and one C# developer). Even then I found it very useful to have written requirements, formal tests, source control and bug tracking (we used bug tracking for our features as well as bugs). It helped us to not forget anything and a year later when you were doing maintenance, you had something to research though to help you undersatnd what you did. Plus when the two of us left (as most people eventually move on) there was documentation there for the next person.
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I'm facing developing a new web app in the future and I'm wondering how to decide what framework to use. I've settled on Python as my language of choice. But there are still may frameworks to choose from! More generally how do you choose between different similar technologies that are still in the works as the latest round of web frameworks are? I'm curious what your process is for deciding on technologies you've never used.
Recognize that no choice is perfect -- or even very good.
No matter what you choose, someone will have a suggestion that -- they claim -- is better.
No matter what you choose, some part of your tech. stack will fail to live up to your expectations.
The most important thing is "shared nothing" so that the components can be replaced.
After that, the next most important thing is automatically-generated features to reduce or prevent programming.
Look at Django. Lots of automatic admin features make life very pleasant.
There are a number of things you can do:
Download the frameworks and build something similar with them for comparison.
Look for comparisons by other people, but attempt to understand the bias of the reviewer.
Observe the community at work, see what people are building and the issues they run into when using the technology. Forums, blogs, mailing list etc are good places to check out.
Go to conferences and meet like minded developers interested.
You can also take the approach of using stable versions rather than alpha bits. After a while you might move closer the bleeding edge. People associated with the project in question are generally more biased than those approaching from other platforms, be careful who you trust.
Consider the impact of using a bleeding edge framework versus an established one. Sometimes it's important to your customers that you are on one perceived as stable. At other times this doesn't matter. How comfortable are you with fixing the framework itself? Great developers will learn the internals, or at least know enough to keep things moving whilst a bug is sent to the framework mailing list etc.
Consider some general best practices in building abstractions and reusable code on the python platform. You may be able to save yourself some work in moving to another platform. However, don't be a reuse junkie as this can limit the effectiveness of your use of the framework. The 37Signals guys are right when they talk about extracting frameworks from working code rather than building frameworks from scratch.
I know this is an old posting, but I am in a similar situation (again) and I think there are other people who may want to look for different opinions, and hear of (somewhat) successful experiences.
Since baudtack mentioned Python, I will try to answer this along the lines of my experiences using Python. Here is what has been working for me:
determine the scope of your project - outlining what your application is supposed to be able to do without introducing any programming or design notes will clarify your goals greatly
determine how you would like to work with your code, stack and data:
a. what sort of programming paradigm do you want to work with? i.e. object-oriented, functional, etc. do you want to play to your programming style or do you want to follow somebody else's programming style?
b. use semantic web or not? do you want greater control over URIs and their design? (I found web.py great for this by the way - It is my choice to create REST APIs in Python)
c. do you want to be trapped by framework requirements, or do you want a better separation of the application from the web component, i.e. use a framework to utilize your application as a set of modules, for example. My problem with Django was that I ended up not programming Python, but having to learn more Django than I needed to. If that works for you, then that is the way to go.
d. data stores... some sort of SQL vs. non RDBMS (xml databases like eXist-db with full xquery support) vs. OODBMS vs. a combination of the above? how complicated do you need this to be? how much control/separation do you need to have over how data gets stored and recalled in your application?
e. testing: unit tests... thank goodness for python! if your web app has the potential to grow (as they often do), having a sane and coherent testing platform to begin with will help out a lot in the future - I wish I had learned about this earlier on. oh well... better late than never.
f. how much control over the server do you need? hosting considerations? how much control over an Apache instance do you need to have? OS specific needs? I found that using shared hosting providers like Webfaction has been great. I eventually found I needed greater needs for flexibility and bandwidth. In other words, what can you get for your budget? If you have USD50 to spend each month, it may be better to consider a virtual hosting solution like Linode....
Finally, I echo S.Lott's sentiments that no choice for a solution is perfect, and are subject to obsolescence.
Experience trumps hearsay. I've found that prototyping is a huge help. Make a prototype that uses the features you expect to be the most important for various frameworks. This helps route out any features that may not work "as advertised."
In general though, kudos for being willing to look at new technologies.
I have a set of criteria in different categories:
Activity & Documentation
Is there an active user base?
Is there an active development base?
Is the support responsive and information accessible?
Are there user and development guides and reference material?
These are essential, there needs to be traceability of all of these to build confidence in the solution.
Ease of use
Are basic features easy and complex features possible? I typically give a new framework a test drive and try to roll out a set of use cases to see how intuitive the framework is to use.
Is installation intuitive and simple for a local/dev installation and production deployment?
How is it backed up and upgraded?
What is the effort and UX for implementing a "Hello World" type blog post, static page, menu item, and plugin?
How are versions dealt with for the core & plugins?
Example (on the topic of Automated Testing/Continuous Integration solutions)
Several years ago I evaluated several Automated Testing solution. At the time Jenkins and TeamCity were front runners and in the end I chose TeamCity because of the UX, active user & development base and quality of accessible documentation.
Example (CMS for a blog)
This criteria is also why I prefer to use Wordpress over other options. While wordpress has its shortcomings, the user and development base is strong and active which leads to a software architecture with more potential to evolve over time and maintain its relevance and a development community that provides quality plugins and themes to choose from.
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What prompts my question is this post from Jeff Atwood, and this post from Dare Obasanjo. It seems to me that there might be at least a few areas where third-party functionality is a better idea than custom code.
For example, should logging always be third-party? How about encryption? Or search?
I'm looking forward to everyone's feedback on this.
Edit: This question assumes that logging, encryption, and/or search isn't your core business.
Encryption should be third party most of the times, ...unless you're in the business of selling encryption systems.
Which is pretty much Mr. Atwood his point as I understood it, your core busines shouldn't be third party, so there's probably nothing that should always be third party...
My rule of thumb is to use (or at least consider) third-party for anything that's outside the core purpose of your business.
Encryption's always been the prototypical example of this. But it extends to other areas as well.
Writing logging code for troubleshooting during development is entirely different than writing logging code used for monitoring production systems.
It's all about choosing which areas of development actually add value to your project. Using third-party stuff removes the risk that that component is incomplete/buggy/etc. but comes with the risk that it may not be as flexible as what you need.
Another example would be developing an entire web forum for a website, when you can buy a solution for much cheaper.
"What functionality should always be third-party?"
None. there is always an exception or special case to overrule the egregious use of "always" when discussing an essentially engineering decision.
Further, the decision to go third party should almost never be made on basis of a given "functionality." There is no such thing as such a perfect library that you never need go anywhere else for that type of functionality.
Going third party is a decision that should be made based on
Cost of going third party vs cost of doing it in house
Development time required placed against deadlines (ie, it might be cheaper inhouse, but your development timeline might not allow it regardless)
Ease of integration, debugging, maintenance, upgrade paths - it may be that you can develop something that will "do the job, but barely" inhouse vs not much more money for something that will take care of you for years to come
Ease/cost of testing and proving - security packages are notoriously difficult to test well
However. There are some things where it's really tough to believe that going in house is better. For instance, you can write a competitor to OpenGL and DirectX, and in certain applications (scientific computing, etc) there are good reasons for considering such a path. But in general you wouldn't dream of it. Even though it's "free" it's still a third party dependency, and you could end up on the skids because of a bug which only affects how you use these graphics languages.
In other words, some incredibly complex or hard to prove/test things exist which should almost always go to a third party. Security is another one. Don't write your own hashing algorithm unless you are 1) certifiably crazy and 2) have at least 3 excellent business reasons to do so.
But "What functionality should always be third-party?" None. There's always an exception.
-Adam
I fully agree that encryption should only be done by experts whenever possible. It should also be open source and have undergone a good deal of peer review.
It depends. Is there a 3rd party library available that suits your needs and most importantly, the language and/or API you work with. Then go for it.
If you have reasons to do your own version, make sure it's not just "not invented here". Also, if you haven't had an in depth look at the market's top five leading products for whatever you need, you haven't done your job thoroughly enough. There are good chances you will find what you are looking for, and even if you can't use it, you still learn something even from the library descriptions. At the minimum you will learn which features you would need and which you don't. If you also get the source code to one of the libraries, this should be your preferred choice over a competing library with no source code but possibly more features.
The area where I have consistently used third party controls was charting. It is a fairly common problem to have to chart some batch of data and the third party controls are mature and trustworthy.
I guess the answer depends upon the usage. If you are developing for profit, you would be likely to buy in components if the cost of using the component vs the cost of developing it results in more profit. This is particularly the case with large components when you do not have the in-house expertise to produce them.
A couple of good examples that I have used are the Infragistics controls and Dundas charts. Although we could have created these in-house, the costs in terms of time and lost opportunity would be huge compared to buying a couple of licenses.
Of course, sometimes we do this type of thing without even considering it as a component purchase. Streching the imagination a little, you could include the .NET framework, SQL Server, the Windows API, etc.
If you can buy it cheaper than you can build it, and the bought functionality meets your business requirements, then buy it.
There is not a definitive answer to this question because just like anything else in software development it depends on the situation. I would say that if the following 3 items are true than you shouldn't think about doing it yourself...
If it's not core to your business or expertise.
If someone else has written it for you and it is being used in widespread communities.
If it meets your needs and requirements or it can be extended to meet your requirements fairly easily.
This question is the inverse of the question: what software should you create?
Which is obviously silly.
For both there is no one answer, it depends on the needs of your business. Do you need to build a better search engine for the entire internet? Almost certainly not. But if you are Google in the late 90s, you do. 3rd vs. 1st party is just a matter of which office you work in, every 3rd party is a 1st party to themselves.
If all you need is good enough: use something off the shelf.
Either you'll create something lower quality or you'll waste money and effort on something that doesn't matter that much, or both.
If it's the foundation of your business: build it yourself.
If you can build something better, and you can build a business out of that better thing, then do!
Don't forget that the time is a big issue for writing all things by your hand, it is not that you cannot do that but the problem comes from your customers or company they always want to find the fastest way to build their system. But if you have a non-profit project you can try building things by yourself. For e.g you can use JQuery or Dojo as your ajax toolkit if you are writing web applications and you want to set some ajax functionality, it will take time to build those things by your hand :)
But you also must be careful when using a third-party libraries, you must trust them because they can contain malicious code, or they are very poorly written and can cause you headache.
Your own encryption function? dont even think about it but I think you probably meant some kind of wrapper for existing functions.
3rd party component advantages:
Alot of functionality
Fully tested (hopefully!)
Doesnt take time to develop so can be cheaper (but..)
Disadvantages
Is it really flexible enough for that next akward customer requirement
Distribution can be expensive
Ties you into 3rd party company which can be a pain when they make a new release to fix bugs
You dont learn to do the task yourself
Whether you use a third party component is going to depend on your application and the requirements. Something like graphing is going to take ages to get right so would be a good third party component to use.
Anything that is outside your core business is a good candidate for third party solutions. You want to spend your development time creating that core functionality that is unique(ish) and can not be purchased and used in a cost effective manor.
For example, lets look at web gridview control. Can you develop and extend a gridview yourself? Sure you can, but to develop, code, and test you grid view is going to take X amount of time and resources, which you can translate in to dollars. Now you have factor in reoccurring costs for support, maintenance, and bug fixes.
Now lets use the arbitrary amount I remember reading in some mag about the average US developer making $40 per hour including their benefits. There are whole web control suites available for around another approximated $800 per developer license. If your developer spends more than say 25 hours total on this one control, you could have purchased a whole suite and spent 5 hours integrating and testing.
Now hopefully I didn't get too confusing there, but the general gist is if you can buy it off the self it will probably save time and money, and instead focus on things you can't get off the self which are usually your money makers.
I'd say for writing boiler plate code, or redundant code which is copy and paste almost every time should be done through a library. For me, validation code almost always has me making stupid mistakes, because it's boring. Spring.NET is amazing for this. I'm so glad my boss encouraged me to try it.
seems you have all the answers you need, but i would just like to throw my opinion in here along with everyone else's. clients pay you to make applications that work specifically for them, and that's usually why they go to you; something they need isn't found in any other product on the market. thus, your focus should be on developing that specific part they need.
undoubtedly your application will need to do other things as well. maybe it will need to connect to a database, or encrypt certain lines. this is where third-party libraries come into play. you don't want to waste time writing a new driver for a database, or a new encryption scheme that might have holes you don't have time to test. you want to use the ones that already exist, and have been extensively tested and optimized.
remember, the faster you finish, the less they will have to pay. this makes them happy and want to come back to you. this also means you make more because even though they pay less, you can work on more projects, which means more money.
in conclusion, you should rely on third-party libraries in miscellaneous modules.